GE
Data Sheet
December 5, 2019 ©2017 General Electric Company. All rights reserved.
12V MicroTLynx
TM
12A: Non-Isolated DC-DC Power Module
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
Features
Compliant to RoHS EU Directive 2002/95/EC (Z
versions)
Compatible in a Pb-free or SnPb reflow environment (Z
versions)
DOSA Based
Wide Input voltage range (4.5Vdc-14Vdc)
Output voltage programmable from 0.69Vdc to 5.5
Vdc via external resistor
Tunable Loop
TM
to optimize dynamic output voltage
response
Flexible output voltage sequencing EZ-SEQUENCE
(APTS versions)
Fixed switching frequency and ability to synchronize
with external clock
Output overcurrent protection (non-latching)
Overtemperature protection
Remote On/Off
Remote Sense
Power Good signal
Fixed switching frequency
Ability to sink and source current
Small size: 20.3 mm x 11.4 mm x 8.5 mm (0.8 in x 0.45
in x 0.334 in)
Wide operating temperature range [-40°C to
105°C(Ruggedized: -D), 85°C(Regular)]
Ruggedized (-D) version able to withstand high levels of
shock and vibration
UL* 60950-1Recognized, CSA
†
C22.2 No. 60950-1-03
Certified, and VDE
‡
0805:2001-12 (EN60950-1)
Licensed
ISO** 9001 and ISO 14001 certified manufacturing
facilities
Applications
Distributed power architectures
Intermediate bus voltage applications
Telecommunications equipment
Servers and storage applications
Networking equipment
Industrial equipment
Description
The 12V Micro TLynx
TM
series of power modules are non-isolated dc-dc converters that can deliver up to 12A of output current. These
modules operate over a wide range of input voltage (V
IN
= 4.5Vdc-14Vdc) and provide a precisely regulated output voltage from
0.69Vdc to 5.5Vdc, programmable via an external resistor. The new Ruggedized version (-D) is capable of operation up to 105°C and
can withstand high levels of shock and vibration. Features include frequency synchronization, remote On/Off, adjustable output
voltage, over current and overtemperature protection, power good and output voltage sequencing. A new feature, the Tunable
Loop
TM
, allows the user to optimize the dynamic response of the converter to match the load with reduced amount of output
capacitance leading to savings on cost and PWB area.
*
UL is a registered trademark of Underwriters Laboratories, Inc.
†
CSA is a registered trademark of Canadian Standards Association.
‡
VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
** ISO is a registered trademark of the International Organization of Standards
TRIM
VOUT
SENSE
GND
CTUNE
RTUNE
RTrim
VIN
Co
Cin
Vin+ Vout+
ON/OFF
Q1
SEQ
PGOOD
MODULE
RoHS Com p l iant
EZ-SEQUENCE
TM
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 2
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings
only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations
sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability.
Parameter Device Symbol Min Max Unit
Input Voltage All VIN -0.3 15 Vdc
Continuous
Voltage on SEQ terminal All VSEQ -0.3 VIN Vdc
Voltage on SYNC terminal All VSYNC -0.3 12 Vdc
Voltage on PG terminal All VPG -0.3 6 Vdc
Operating Ambient Temperature All TA -40 85 °C
(see Thermal Considerations section) -D version TA -40 105 °C
Storage Temperature All Tstg -55 125 °C
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.
Parameter Device Symbol Min Typ Max Unit
Operating Input Voltage All VIN 4.5
14.0 Vdc
Maximum Input Current All IIN,max 11.5 Adc
(VIN=4.5V to 14V, IO=IO, max )
Input No Load Current
(VIN = 10.0Vdc, IO = 0, module enabled) VO,set = 0.69 Vdc IIN,No load 26 mA
(VIN = 12.0Vdc, IO = 0, module enabled) VO,set = 3.3Vdc IIN,No load 60 mA
Input Stand-by Current All IIN,stand-by 1.2 mA
(VIN = 12.0Vdc, module disabled)
Inrush Transient All I2t 1 A2s
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; VIN =0 to 14V, IO=
IOmax ; See Test Configurations)
All 70 mAp-p
Input Ripple Rejection (120Hz) All 45 dB
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This power module can be used in a wide variety of applications, ranging from simple standalone operation to an integrated part of
sophisticated power architecture. To preserve maximum flexibility, internal fusing is not included; however, to achieve maximum
safety and system protection, always use an input line fuse. The safety agencies require a fast-acting fuse with a maximum rating
of 15A (see Safety Considerations section). Based on the information provided in this data sheet on inrush energy and maximum dc
input current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data sheet for further
information.
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 3
Electrical Specifications (continued)
Parameter Device Symbol Min Typ Max Unit
Output Voltage Set-point All VO, set -1.5 +1.5 % VO, set
Output Voltage All VO, set -2.5 +2.5 % VO, set
(Over all operating input voltage, resistive load, and
temperature conditions until end of life)
Adjustment Range (elected by an external resistor)
(Some output voltages may not be possible depending on the
input voltage – see Feature Descriptions Section)
All VO 0.69 5.5 Vdc
Output Regulation (for VO ≥ 2.5Vdc)
Line (VIN=VIN, min to VIN, max) All
+0.4 % VO, set
Load (IO=IO, min to IO, max) All
10 mV
Output Regulation (for VO < 2.5Vdc)
Line (VIN=VIN, min to VIN, max) All
10 mV
Load (IO=IO, min to IO, max) All
5 mV
Temperature (Tref=TA, min to TA, max) All
0.5 % VO, set
Remote Sense Range All 0.5 Vdc
Output Ripple and Noise on nominal output
(VIN=VIN, nom and IO=IO, min to IO, max Co = 0.1μF // 10 μF ceramic
capacitors)
Peak-to-Peak (5Hz to 20MHz bandwidth) All 65 80 mVpk-pk
RMS (5Hz to 20MHz bandwidth) All 23 28 mVrms
External Capacitance1
Without the Tunable LoopTM
ESR ≥ 1 mΩ All CO, max 0 100 μF
With the Tunable LoopTM
ESR ≥ 0.15 mΩ All CO, max 0 1000 μF
ESR ≥ 10 mΩ All CO, max 0 5000 μF
Output Current All Io 0 12 Adc
Output Current Limit Inception (Hiccup Mode ) All IO, lim 150 % Io,max
Output Short-Circuit Current All IO, s/c 2 Adc
(VO≤250mV) ( Hiccup Mode )
Efficiency
VIN= 10Vdc, TA=25°C VO, set = 0.69Vdc η 76.0 %
VIN= 12Vdc, TA=25°C VO, set = 1.2Vdc η 83.0 %
IO=IO, max , VO= VO,set V
O,set = 1.8Vdc η 87.6 %
V
O,set = 2.5Vdc η 90.2 %
V
O,set = 3.3Vdc η 92.2 %
V
O,set = 5.0Vdc η 94.3 %
External capacitors may require using the new Tunable LoopTM feature to ensure that the module is stable as well as getting the best
transient response. See the Tunable LoopTM section for details.
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 4
Electrical Specifications (continued)
Parameter Device Symbol Min Typ Max Unit
Switching Frequency All fsw 500 kHz
Frequency Synchronization
Synchronization Frequency Range 520 600 kHz
High-Level Input Voltage All VIH 2.5 V
Low-Level Input Voltage All VIL 0.8 V
Input Current, SYNC VSYNC=2.5V ISYNC 1 mA
Minimum Pulse Width, SYNC All tSYNC 250 ns
Minimum Setup/Hold Time, SYNC2 All tSYNC_SH 250 ns
Dynamic Load Response
(dIo/dt=1A/s; VIN = VIN, nom; TA=25°C)
Load Change from Io= 50% to 100% of Io,max; 1μF
ceramic// 10 μF ceramic
Peak Deviation All Vpk 360 mV
Settling Time (Vo<10% peak deviation) All ts 50 s
(dIo/dt=1A/s; VIN = VIN, nom; TA=25°C)
Load Change from Io= 100% to 50%of Io,max: 1μF
ceramic// 10 μF ceramic
Peak Deviation All Vpk 400 mV
Settling Time (Vo<10% peak deviation) All ts 50 s
2 To meet set up time requirements for the synchronization circuit, the logic low width of the pulse must be greater than 100 ns wide.
General Specifications
Parameter Min Typ Max Unit
Calculated MTBF (IO=0.8IO, max, TA=40°C) Telcordia Issue 2 Method 1 Case 3 16,250,892 Hours
Weight 3.68 (0.130) g (oz.)
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 5
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See
Feature Descriptions for additional information.
Parameter Device Symbol Min Typ Max Unit
On/Off Signal Interface
(VIN=VIN, min to VIN, max ; open collector or equivalent,
Signal referenced to GND)
Device is with suffix “4” – Positive Logic (See Ordering Information)
Logic High (Module ON)
Input High Current All IIH — 25 µA
Input High Voltage All VIH VIN – 1 VIN,max V
Logic Low (Module OFF)
Input Low Current All IIL 3 mA
Input Low Voltage All VIL 3.5 V
Device Code with no suffix – Negative Logic (See Ordering
Information)
(On/OFF pin is open collector/drain logic input with
external pull-up resistor; signal referenced to GND)
Logic High (Module OFF)
Input High Current All IIH — — 1 mA
Input High Voltage All VIH 2.0 — VIN, max Vdc
Logic Low (Module ON)
Input low Current All IIL — — 10 μA
Input Low Voltage All VIL 0 — 1 Vdc
Turn-On Delay and Rise Times
(VIN=VIN, nom, IO=IO, max , VO to within ±1% of steady state)
Case 1: On/Off input is enabled and then input power is
applied (delay from instant at which VIN = VIN, min until Vo =
10% of Vo, set)
All Tdelay — 2 — msec
Case 2: Input power is applied for at least one second and
then the On/Off input is enabled (delay from instant at
which Von/Off is enabled until Vo = 10% of Vo, set)
All Tdelay — 2 — msec
Output voltage Rise time (time for Vo to rise from
10% of Vo, set to 90% of Vo, set) All Trise — 5 — msec
Output voltage overshoot (TA = 25oC 3.0 % VO, set
VIN= VIN, min to VIN, max,IO = IO, min to IO, max)
With or without maximum external capacitance
Over Temperature Protection All Tref 133 °C
(See Thermal Considerations section)
Sequencing Delay time
Delay from VIN, min to application of voltage on SEQ pin All TsEQ-delay 10 msec
Tracking Accuracy (Power-Up: 0.5V/ms) All VSEQ –Vo 100 mV
(Power-Down: 0.5V/ms) All VSEQ –Vo 150 mV
(VIN, min to VIN, max; IO, min to IO, max VSEQ < Vo)
Input Undervoltage Lockout
Turn-on Threshold All 4.45 Vdc
Turn-off Threshold All 4.2 Vdc
Hysteresis All
0.25 Vdc
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 6
Feature Specifications (continued)
Parameter Device Symbol Min Typ Max Units
PGOOD (Power Good)
Signal Interface Open Drain, Vsupply 6VDC
Overvoltage threshold for PGOOD 110.8 %VO, set
Undervoltage threshold for PGOOD 89.1 %VO, set
Pulldown resistance of PGOOD pin All 7 50
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 7
Characteristic Curves
The following figures provide typical characteristics for the 12V Micro TLynxTM at 0.69Vo and at 25oC.
EFFICIENCY, (%)
OUTPUT CURRENT, Io (A)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 1. Converter Efficiency versus Output Current. Figure 2. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (5Adiv) VO (V) (200mV/div)
TIME, t (1s/div) TIME, t (100s /div)
Figure 3. Typical output ripple and noise (VIN = 12V, Io = Io,max). Figure 4. Transient Response to Dynamic Load Change from
0% to 50% to 0%.
ON/OFF VOLTAGE OUTPUT VOLTAGE
VON/OFF (V) (2V/div) VO (V) (200mV/div)
INPUT VOLTAGE OUTPUT VOLTAGE
VIN (V) (5V/div) VO (V) (200mV/div)
TIME, t (1 ms/div) TIME, t (1 ms/div)
Figure 5. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 6. Typical Start-up Using Input Voltage (VIN = 10V, Io =
Io,max).
70
75
80
85
90
024681012
Vin=10V
Vin=5V
Vin=4.5V
4
6
8
10
12
55 65 75 85 95 105
NC
0.5m/s
(100LFM) 1m/s
(200LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
Standard Part
(85
°
C)
Ruggedized (D)
Part (105
°
C)
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 8
Characteristic Curves (continued)
The following figures provide typical characteristics for the 12V Micro TLynxTM at 1.2Vo and at 25oC.
EFFICIENCY, (%)
OUTPUT CURRENT, Io (A)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 7. Converter Efficiency versus Output Current. Figure 8. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (5Adiv) VO (V) (200mV/div)
TIME, t (1s/div) TIME, t (100s /div)
Figure 9. Typical output ripple and noise (VIN = 12V, Io = Io,max). Figure 10. Transient Response to Dynamic Load Change
from 0% to 50% to 0%.
ON/OFF VOLTAGE OUTPUT VOLTAGE
VON/OFF (V) (2V/div) VO (V) (500mV/div)
INPUT VOLTAGE OUTPUT VOLTAGE
VIN (V) (5V/div) VO (V) (500mV/div)
TIME, t (1 ms/div) TIME, t (1 ms/div)
Figure 11. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 12. Typical Start-up Using Input Voltage (VIN = 12V, Io
= Io,max).
70
75
80
85
90
95
024681012
Vin=14V
Vin=12V
Vin=4.5V
4
6
8
10
12
14
55 65 75 85 95 105
Standard Part
(85
°
C)
Ruggedized (D)
Part (105
°
C)
NC
0.5m/s
(100LFM) 1m/s
(200LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 9
Characteristic Curves (continued)
The following figures provide typical characteristics for the 12V Micro TLynxTM at 1.8Vo and at 25oC.
EFFICIENCY, (%)
OUTPUT CURRENT, Io (A)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 13. Converter Efficiency versus Output Current. Figure 14. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (5Adiv) VO (V) (200mV/div)
TIME, t (1s/div) TIME, t (100s /div)
Figure 15. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
Figure 16. Transient Response to Dynamic Load Change from
0% to 50% to 0%.
ON/OFF VOLTAGE OUTPUT VOLTAGE
VON/OFF (V) (2V/div) VO (V) (500mV/div)
INPUT VOLTAGE OUTPUT VOLTAGE
VIN (V) (5V/div) VO (V) (500mV/div)
TIME, t (1 ms/div) TIME, t (1 ms/div)
Figure 17. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 18. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io,max).
70
75
80
85
90
95
100
024681012
Vin=14V
Vin=12V
Vin=4.5V
4
6
8
10
12
14
55 65 75 85 95 105
Standard Part
(85°C)
Ruggedized (D)
Part (105
°
C)
NC
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 10
Characteristic Curves (continued)
The following figures provide typical characteristics for the 12V Micro TLynxTM at 2.5Vo and at 25oC.
EFFICIENCY, (%)
OUTPUT CURRENT, Io (A)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 19. Converter Efficiency versus Output Current. Figure 20. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (5Adiv) VO (V) (200mV/div)
TIME, t (1s/div) TIME, t (100s /div)
Figure 21. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
Figure 22. Transient Response to Dynamic Load Change from
0% to 50% to 0%.
ON/OFF VOLTAGE OUTPUT VOLTAGE
VON/OFF (V) (1V/div) VO (V) (1V/div)
INPUT VOLTAGE OUTPUT VOLTAGE
VIN (V) (5V/div) VO (V) (1V/div)
TIME, t (1 ms/div) TIME, t (1 ms/div)
Figure 23. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 24. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io,max).
70
75
80
85
90
95
100
024681012
Vin=14V
Vin=12V
Vin=4.5V
3
5
7
9
11
13
55 65 75 85 95 105
Standard Part
(85°C)
Ruggedized (D)
Part (105
°
C)
NC 0.5m/s
(100LFM) 1m/s
(200LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 11
Characteristic Curves (continued)
The following figures provide typical characteristics for the 12V Micro TLynxTM at 3.3Vo and at 25oC.
EFFICIENCY, (%)
OUTPUT CURRENT, Io (A)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 25. Converter Efficiency versus Output Current. Figure 26. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (5Adiv) VO (V) (200mV/div)
TIME, t (1s/div) TIME, t (100s /div)
Figure 27. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
Figure 28. Transient Response to Dynamic Load Change from
0% 50% to 0%.
ON/OFF VOLTAGE OUTPUT VOLTAGE
VON/OFF (V) (2V/div) VO (V) (1V/div)
INPUT VOLTAGE OUTPUT VOLTAGE
VIN (V) (5V/div) VO (V) (1V/div)
TIME, t (1ms/div) TIME, t (1ms/div)
Figure 29. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 30. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io,max).
70
75
80
85
90
95
100
024681012
Vin=14V
Vin=12V
Vin=5V
3
5
7
9
11
13
55 65 75 85 95 105
Standard Part
(85
°
C)
Ruggedized (D)
Part (105
°
C)
NC
0.5m/s
(100LFM)
1m/s
(200LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 12
Characteristic Curves (continued)
The following figures provide typical characteristics for the 12V Micro TLynxTM at 5Vo and at 25oC.
EFFICIENCY, (%)
OUTPUT CURRENT, Io (A)
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 31. Converter Efficiency versus Output Current. Figure 34. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT CURRENT, OUTPUT VOLTAGE
IO (A) (5Adiv) VO (V) (200mV/div)
TIME, t (1s/div) TIME, t (100s /div)
Figure 32. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
Figure 35. Transient Response to Dynamic Load Change from
0% 50% to 0%.
ON/OFF VOLTAGE OUTPUT VOLTAGE
VON/OFF (V) (2V/div) VO (V) (2V/div)
INPUT VOLTAGE OUTPUT VOLTAGE
VIN (V) (5V/div) VO (V) (2V/div)
TIME, t (1 ms/div) TIME, t (1ms/div)
Figure 33. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 36. Typical Start-up Using Input Voltage (VIN = 12V, Io =
Io,max).
80
85
90
95
100
024681012
Vin=14V
Vin=12V
Vin=7V
3
5
7
9
11
13
45 55 65 75 85 95 105
Standard Part
(85
°
C)
Ruggedized (D)
Part (105
°
C)
NC
0.5m/s
(100LFM) 1m/s
(200LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 13
Test Configurations
TO OSCILLOSCOPE CURRENT PROBE
LTEST
1μH
BATTERY
CS 1000μF
Electrolytic
E.S.R.<0.1
@ 20°C 100kHz
2x100μF
Tantalum
VIN(+)
COM
NOTE: Measure input reflected ripple current with a simulated
source inductance (LTEST) of 1μH. Capacitor CS offsets
possible battery impedance. Measure current as shown
above.
CIN
Figure 37. Input Reflected Ripple Current Test Setup.
NOTE: All voltage measurements to be take n at the module
terminals, as shown above. If sockets are use d then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
Vo+
COM
0.1uF
RESISTIVE
LOAD
SCOP E U SING
BNC SOCKET
COPPER STRIP
GROUND PLANE
10uF
Figure 38. Output Ripple and Noise Test Setup.
VO
COM
VIN(+)
COM
RLOAD
Rcontact Rdistribution
Rcontact Rdistribution
Rcontact
Rcontact
Rdistribution
Rdistribution
VIN VO
NOTE: All voltage measurements to be taken at the module
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
Figure 39. Output Voltage and Efficiency Test Setup.
=
VO. IO
VIN. IIN
x 100 %
Efficiency
Design Considerations
Input Filtering
The 12V Micro TLynxTM module should be connected to a low
ac-impedance source. A highly inductive source can affect
the stability of the module. An input capacitance must be
placed directly adjacent to the input pin of the module, to
minimize input ripple voltage and ensure module stability.
To minimize input voltage ripple, ceramic capacitors are
recommended at the input of the module. Figure 40 shows
the input ripple voltage for various output voltages at 12A of
load current with 1x22 µF or 2x22 µF ceramic capacitors
and an input of 12V.
Input Ripple Voltage (mVp-p)
Output Voltage (Vdc)
Figure 40. Input ripple voltage for various output voltages
with 1x22 µF or 2x22 µF ceramic capacitors at the input (12A
load). Input voltage is 12V.
Output Filtering
The 12V Micro TLynxTM modules are designed for low output
ripple voltage and will meet the maximum output ripple
specification with 0.1 µF ceramic and 10 µF ceramic capacitors
at the output of the module. However, additional output
filtering may be required by the system designer for a number
of reasons. First, there may be a need to further reduce the
output ripple and noise of the module. Second, the dynamic
response characteristics may need to be customized to a
particular load step change.
To reduce the output ripple and improve the dynamic response
to a step load change, additional capacitance at the output
can be used. Low ESR polymer and ceramic capacitors are
recommended to improve the dynamic response of the
module. Figure 41 provides output ripple information for
different external capacitance values at various Vo and for full
load currents of 12A. For stable operation of the module, limit
the capacitance to less than the maximum output capacitance
as specified in the electrical specification table. Optimal
performance of the module can be achieved by using the
Tunable LoopTM feature described later in this data sheet.
0
50
100
150
200
250
300
0.51 1.52 2.53 3.54 4.55
1x22uF
2x22uF
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 14
Figure 41. Output ripple voltage for various output voltages
with external 1x10 µF, 1x47 µF, 2x47 µF or 4x47 µF ceramic
capacitors at the output (12A load). Input voltage is 12V.
Safety Considerations
For safety agency approval the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standards, i.e., UL
60950-1, CSA C22.2 No. 60950-1-03, and VDE 0850:2001-12
(EN60950-1) Licensed.
For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV), the input must
meet SELV requirements. The power module has extra-low
voltage (ELV) outputs when all inputs are ELV.
The input to these units is to be provided with a fast-acting
fuse with a maximum rating of 15A in the positive input lead.
0
10
20
30
40
50
60
70
0.5 1.5 2.5 3.5 4.5 5.5
Output Voltage(Volts)
Ripple(mVp-p)
1x10uF External Cap
1x47uF External Cap
2x47uF External cap
4x47uF External Cap
GE
Data Sheet
12V MicroTLynx
TM
12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 15
Feature Descriptions
Remote Enable
The 12V Micro TLynx
TM
modules feature an On/Off pin for remote
On/Off operation. Two On/Off logic options are available. In the
Positive Logic On/Off option, (device code suffix “4” see Ordering
Information), the module turns ON during a logic High on the
On/Off pin and turns OFF during a logic Low. With the Negative
Logic On/Off option, (no device code suffix see Ordering
Information), the module turns OFF during logic High and ON
during logic Low. The On/Off signal is always referenced to
ground. For either On/Off logic option, leaving the On/Off pin
disconnected will turn the module ON when input voltage is
present.
For positive logic modules, the circuit configuration for using the
On/Off pin is shown in Figure 42. When the external transistor
Q1 is in the OFF state, the internal PWM Enable signal is pulled
high through an internal 24.9k resistor and the external pullup
resistor and the module is ON. When transistor Q1 is turned ON,
the On/Off pin is pulled low and the module is OFF. A suggested
value for R
pullup
is 20k.
Figure 42. Circuit configuration for using positive On/Off
logic.
For negative logic On/Off modules, the circuit configuration is
shown in Fig. 43. The On/Off pin should be pulled high with an
external pull-up resistor (suggested value for the 4.5V to 14V
input range is 20Kohms). When transistor Q1 is in the OFF state,
the On/Off pin is pulled high, internal transistor Q2 is turned ON
and the module is OFF. To turn the module ON, Q1 is turned ON
pulling the On/Off pin low, turning transistor Q2 OFF resulting in
the PWM Enable pin going high and the module turning ON.
Overcurrent Protection
To provide protection in a fault (output overload) condition, the
unit is equipped with internal current-limiting circuitry and can
endure current limiting continuously. At the point of current-limit
inception, the unit enters hiccup mode. The unit operates
normally once the output current is brought back into its
specified range.
Figure 43. Circuit configuration for using negative On/Off
logic.
Over Temperature Protection
To provide protection in a fault condition, the unit is equipped
with a thermal shutdown circuit. The unit will shutdown if the
overtemperature threshold of 133
o
C is exceeded at the thermal
reference point T
ref.
The thermal shutdown is not intended as a
guarantee that the unit will survive temperatures beyond its
rating. Once the unit goes into thermal shutdown it will then
wait to cool before attempting to restart.
Input Undervoltage Lockout
At input voltages below the input undervoltage lockout limit,
the module operation is disabled. The module will begin to
operate at an input voltage above the undervoltage lockout
turn-on threshold.
Output Voltage Programming
The output voltage of the 12V Micro TLynx
TM
module can be
programmed to any voltage from 0.69dc to 5.5Vdc by
connecting a resistor between the Trim and GND pins of the
module. Certain restrictions apply on the output voltage set
point depending on the input voltage. These are shown in the
Output Voltage vs. Input Voltage Set Point Area plot in Fig. 44.
The Upper Limit curve shows that for output voltages of 0.9V
and lower, the input voltage must be lower than the maximum
of 14V. The Lower Limit curve shows that for output voltages of
3.3V and higher, the input voltage needs to be larger than the
minimum of 4.5V.
Without an external resistor between Trim and GND pins, the
output of the module will be 0.69Vdc. To calculate the value of
the trim resistor, Rtrim for a desired output voltage, use the
following equation:

k
Vo
Rtrim 69.0
9.6
Rtrim is the external resistor in kΩ, and Vo is the desired output
voltage.
23K
I ON/OFF
25.5K
Q1
GND
ON/OFF
VIN+
_
+
PWM Enable
V
ON/OFF
MODULE
Rpullup
22K
Q3
22K
11.8K
Q2
22K
25.5
K
Q1
ON/OFF
VIN+
GND
_
+
PWM Enable
V
ON/OFF
MODULE
I
Rpullup1
ON/OFF
22
K
Q2
23K
11.8
K
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 16
Figure 44. Output Voltage vs. Input Voltage Set Point Area
plot showing limits where the output voltage can be set for
different input voltages.
Table 1 provides Rtrim values required for some common
output voltages.
Table 1
VO, set (V) Rtrim (KΩ)
0.7 690
1.0 22.26
1.2 13.53
1.5 8.519
1.8 6.216
2.5 3.812
3.3 2.644
5.0 1.601
By using a ±0.5% tolerance trim resistor with a TC of ±100ppm,
a set point tolerance of ±1.5% can be achieved as specified in
the electrical specification.
Remote Sense
The 12V Micro TLynxTM power modules have a Remote Sense
feature to minimize the effects of distribution losses by
regulating the voltage between the VS+ and VS– pins. The
voltage between the VS– and GND pins of the module must not
drop below –0.2V. If Remote Sense is being used, the voltage
between VS+ and VS– cannot be more than 0.5V larger than
the voltage between VOUT and GND. Note that the output
voltage of the module cannot exceed the specified maximum
value. When the Remote Sense feature is not being used,
connect the VS+ pin to the VOUT pin and the VS– pin to the
GND pin.
Monotonic Start-up and Shutdown
The 12V Micro TLynxTM modules have monotonic start-up and
shutdown behavior for any combination of rated input voltage,
output current and operating temperature range.
VO(+)
TRIM
GND
Rtr i m
LOAD
VIN
(+)
ON/OFF
VS+
Figure 45. Circuit configuration for programming output
voltage using an external resistor.
Startup into Pre-biased Output
The 12V Micro TLynxTM 12A modules can start into a prebiased
output as long as the prebias voltage is 0.5V less than the set
output voltage. Note that prebias operation is not supported
when output voltage sequencing is used.
Voltage Margining
Output voltage margining can be implemented in the 12V
Micro TLynxTM modules by connecting a resistor, Rmargin-up, from
the Trim pin to the ground pin for margining-up the output
voltage and by connecting a resistor, Rmargin-down, from the Trim
pin to output pin for margining-down. Figure 46 shows the
circuit configuration for output voltage margining. The Lynx
Programming Tool, available at www.lineagepower.com under
the Design Tools section, also calculates the values of Rmargin-up
and Rmargin-down for a specific output voltage and % margin
Please consult your local GE technical representative for
additional details.
Output Voltage Sequencing
The 12V Micro TLynxTM modules include a sequencing feature,
EZ-SEQUENCE that enables users to implement various types of
output voltage sequencing in their applications. This is
accomplished via an additional sequencing pin. When not
using the sequencing feature, either tie the SEQ pin to VIN or
leave it unconnected.
When an analog voltage is applied to the SEQ pin, the output
voltage tracks this voltage until the output reaches the set-
point voltage. The final value of the SEQ voltage must be set
higher than the set-point voltage of the module. The output
voltage follows the voltage on the SEQ pin on a one-to-one volt
basis. By connecting multiple modules together, multiple
modules can track their output voltages to the voltage applied
on the SEQ pin.
0
2
4
6
8
10
12
14
16
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
Output Voltage (V)
Input Voltage (v)
Lower Limit
Upper Limit
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 17
Figure 46. Circuit Configuration for margining Output
voltage
For proper voltage sequencing, first, input voltage is applied to
the module. The On/Off pin of the module is left unconnected
(or tied to GND for negative logic modules or tied to VIN for
positive logic modules) so that the module is ON by default.
After applying input voltage to the module, a minimum 10msec
delay is required before applying voltage on the SEQ pin.
During this time, a voltage of 50mV (± 20 mV) is maintained on
the SEQ pin.
This can be done by applying the sequencing voltage through
a resistor R1connected in series with the SEQ pin. This delay
gives the module enough time to complete its internal power-
up soft-start cycle. During the delay time, the SEQ pin should be
held close to ground (nominally 50mV ± 20 mV). This is required
to keep the internal op-amp out of saturation thus preventing
output overshoot during the start of the sequencing ramp. By
selecting resistor R1 (see fig. 47) according to the following
equation
05.0
24950
1
IN
V
R ohms,
the voltage at the sequencing pin will be 50mV when the
sequencing signal is at zero.
After the 10msec delay, an analog voltage is applied to the SEQ
pin and the output voltage of the module will track this voltage
on a one-to-one volt bases until the output reaches the set-
point voltage. To initiate simultaneous shutdown of the
modules, the SEQ pin voltage is lowered in a controlled
manner. The output voltage of the modules tracks the voltages
below their set-point voltages on a one-to-one basis. A valid
input voltage must be maintained until the tracking and output
voltages reach ground potential.
Figure 47. Circuit showing connection of the sequencing
signal to the SEQ pin.
When using the EZ-SEQUENCETM feature to control start-up of
the module, pre-bias immunity during start-up is disabled. The
pre-bias immunity feature of the module relies on the module
being in the diode-mode during start-up. When using the EZ-
SEQUENCETM feature, modules goes through an internal set-up
time of 10msec, and will be in synchronous rectification mode
when the voltage at the SEQ pin is applied. This will result in
the module sinking current if a pre-bias voltage is present at
the output of the module. When pre-bias immunity during
start-up is required, the EZ-SEQUENCETM feature must be
disabled. For additional guidelines on using the EZ-
SEQUENCETM feature please refer to Application Note AN04-
008 “Application Guidelines for Non-Isolated Converters:
Guidelines for Sequencing of Multiple Modules”, or contact the
GE technical representative for additional information.
Power Good
The 12V MIcro TLynxTM 12A modules provide a Power Good
(PGOOD) signal that is implemented with an open-drain output
to indicate that the output voltage is within the regulation limits
of the power module. The PGOOD signal will be de-asserted to
a low state if any condition such as overtemperature,
overcurrent or loss of regulation occurs that would result in the
output voltage going ±11% outside the setpoint value. The
PGOOD terminal should be connected through a pullup resistor
(suggested value 100K) to a source of 6VDC or less.
Synchronization
The 12V Micro TLynxTM series of modules can be synchronized
using an external signal. Details of the SYNC signal are
provided in the Electrical Specifications table. If the
synchronization function is not being used, leave the SYNC pin
floating.
Tunable LoopTM
The 12V Micro TLynxTM 12A modules have a new feature that
optimizes transient response of the module called Tunable
LoopTM.
External capacitors are usually added to the output of the
module for two reasons: to reduce output ripple and noise (see
Figure 41) and to reduce output voltage deviations from the
Vo
MODULE
GND
Trim
Q1
Rtrim
Rmargin-up
Q2
Rmargin-down
R1
GND
VIN+
SEQ
+
-
OUT
10K
499K
MODULE
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 18
steady-state value in the presence of dynamic load current
changes. Adding external capacitance however affects the
voltage control loop of the module, typically causing the loop to
slow down with sluggish response. Larger values of external
capacitance could also cause the module to become unstable.
The Tunable LoopTM allows the user to externally adjust the
voltage control loop to match the filter network connected to
the output of the module. The Tunable LoopTM is implemented by
connecting a series R-C between the SENSE and TRIM pins of the
module, as shown in Fig. 48. This R-C allows the user to
externally adjust the voltage loop feedback compensation of the
module.
Recommended values of RTUNE and CTUNE for different output
capacitor combinations are given in Tables 2 and 3. Table 2
shows the recommended values of RTUNE and CTUNE for different
values of ceramic output capacitors up to 940F that might be
needed for an application to meet output ripple and noise
requirements. Selecting RTUNE and CTUNE according to Table 2 will
ensure stable operation of the module
Figure. 48. Circuit diagram showing connection of RTUME and
CTUNE to tune the control loop of the module.
In applications with tight output voltage limits in the presence of
dynamic current loading, additional output capacitance will be
required. Table 3 lists recommended values of RTUNE and CTUNE in
order to meet 2% output voltage deviation limits for some
common output voltages in the presence of a 6A to 12A step
change (50% of full load), with an input voltage of 12V.
Please contact your GE technical representative to obtain more
details of this feature as well as for guidelines on how to select
the right value of external R-C to tune the module for best
transient performance and stable operation for other output
capacitance values or input voltages other than 12V.
Table 2. General recommended values of of RTUNE and CTUNE
for Vin=12V and various external ceramic capacitor
combinations.
Co 1x47F 2x47F 4x47F 10x47F 20x47F
RTUNE 470 270 150 150 150
CTUNE 1000pF 3300pF 4700pF 8200pF 12nF
Table 3. Recommended values of RTUNE and CTUNE to obtain
transient deviation of 2% of Vout for a 6A step load with
Vin=12V.
Vo 5V 3.3V 2.5V 1.8V 1.2V 0.69V
Co 4x47F
1x47F
+
330F
Polymer
2x47F
+
330F
Polymer
6x47F +
330F
Polymer
6x47F +
2x330F
Polymer
4x47F +
6x330F
Polymer
RTUNE 270 220 220 220 150 150
CTUNE 3300pF 4700pF 6800pF 18nF 33nF 100nF
V 91mV 60mV 47mV 35mV 23mV 12mV
MODULE
VOUT
SENSE
TRIM
GND
RTUNE
CTUNE
RTrim
C O
GE
Data Sheet
12V MicroTLynx
TM
12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 19
Thermal Considerations
Power modules operate in a variety of thermal environments;
however, sufficient cooling should always be provided to help
ensure reliable operation.
Considerations include ambient temperature, airflow, module
power dissipation, and the need for increased reliability. A
reduction in the operating temperature of the module will result
in an increase in reliability. The thermal data presented here is
based on physical measurements taken in a wind tunnel. The
test set-up is shown in Figure 49. The preferred airflow direction
for the module is in Figure 50. The derating data applies to
airflow in either direction of the module’s short axis.
A
i
r
flow
x
Power Module
Wind Tunnel
PWBs
12.7_
(0.50)
76.2_
(3.0)
Probe Location
for measuring
airflow and
ambient
temperature
25.4_
(1.0)
Figure 49. Thermal Test Setup.
The thermal reference points, T
ref
used in the specifications are
also shown in Figure 50. For reliable operation the temperatures
at these points should not exceed 125
o
C. The output power of
the module should not exceed the rated power of the module
(Vo,set x Io,max).
Please refer to the Application Note “Thermal Characterization
Process For Open-Frame Board-Mounted Power Modules” for a
detailed discussion of thermal aspects including maximum
device temperatures.
Figure 50. Preferred airflow direction and location of hot-
spot of the module (Tref).
Modules marked ruggedized with a “D” suffix operate up to an
ambient of 105C. For the remaining types de-rating curves for
individual output voltages meet existing specifications up to
85C.
Tre
f
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 20
Shock and Vibration
The ruggedized (-D version) of the modules are designed to withstand elevated levels of shock and vibration to be able to operate in
harsh environments. The ruggedized modules have been successfully tested to the following conditions:
Non operating random vibration:
Random vibration tests conducted at 25C, 10 to 2000Hz, for 30 minutes each level, starting from 30Grms (Z axis) and up to 50Grms
(Z axis). The units were then subjected to two more tests of 50Grms at 30 minutes each for a total of 90 minutes.
Operating shock to 40G per Mil Std. 810F, Method 516.4 Procedure I:
The modules were tested in opposing directions along each of three orthogonal axes, with waveform and amplitude of the shock
impulse characteristics as follows:
All shocks were half sine pulses, 11 milliseconds (ms) in duration in all 3 axes.
Units were tested to the Functional Shock Test of MIL-STD-810, Method 516.4, Procedure I - Figure 516.4-4. A shock magnitude of
40G was utilized. The operational units were subjected to three shocks in each direction along three axes for a total of eighteen
shocks.
Operating vibration per Mil Std 810F, Method 514.5 Procedure I:
The ruggedized (-D version) modules are designed and tested to vibration levels as outlined in MIL-STD-810F, Method 514.5, and
Procedure 1, using the Power Spectral Density (PSD) profiles as shown in Table 4 and Table 5 for all axes. Full compliance with
performance specifications was required during the performance test. No damage was allowed to the module and full compliance
to performance specifications was required when the endurance environment was removed. The module was tested per MIL-STD-
810, Method 514.5, Procedure I, for functional (performance) and endurance random vibration using the performance and
endurance levels shown in Table 4 and Table 5 for all axes. The performance test has been split, with one half accomplished before
the endurance test and one half after the endurance test (in each axis). The duration of the performance test was at least 16
minutes total per axis and at least 120 minutes total per axis for the endurance test. The endurance test period was 2 hours
minimum per axis.
Table 4: Performance Vibration Qualification - All Axes
Frequency (Hz) PSD Level
(G2/Hz) Frequency (Hz) PSD Level
(G2/Hz) Frequency (Hz) PSD Level
(G2/Hz)
10 1.14E-03 170 2.54E-03 690 1.03E-03
30 5.96E-03 230 3.70E-03 800 7.29E-03
40 9.53E-04 290 7.99E-04 890 1.00E-03
50 2.08E-03 340 1.12E-02 1070 2.67E-03
90 2.08E-03 370 1.12E-02 1240 1.08E-03
110 7.05E-04 430 8.84E-04 1550 2.54E-03
130 5.00E-03 490 1.54E-03 1780 2.88E-03
140 8.20E-04 560 5.62E-04 2000 5.62E-04
Table 5: Endurance Vibration Qualification - All Axes
Frequency (Hz) PSD Level
(G2/Hz) Frequency (Hz) PSD Level
(G2/Hz) Frequency (Hz) PSD Level
(G2/Hz)
10 0.00803 170 0.01795 690 0.00727
30 0.04216 230 0.02616 800 0.05155
40 0.00674 290 0.00565 890 0.00709
50 0.01468 340 0.07901 1070 0.01887
90 0.01468 370 0.07901 1240 0.00764
110 0.00498 430 0.00625 1550 0.01795
130 0.03536 490 0.01086 1780 0.02035
140 0.0058 560 0.00398 2000 0.00398
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 21
Example Application Circuit
Requirements:
Vin: 12V
Vout: 1.8V
Iout: 9.0A max., worst case load transient is from 6A to 9A
Vout: 1.5% of Vout (27mV) for worst case load transient
Vin, ripple 1.5% of Vin (180mV, p-p)
CI1 22F/16V ceramic capacitor (e.g. Murata GRM32ER61C226KE20)
CI2 100F/16V bulk electrolytic
CO1 6 x 47F/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19)
CO2 330F/6.3V Polymer (e.g. Sanyo, Poscap)
CTune 15nF ceramic capacitor (can be 1206, 0805 or 0603 size)
RTune 150 ohms SMT resistor (can be 1206, 0805 or 0603 size)
RTrim 6.19k SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)
MODULE
VOUT
VS+
GND
TRIM
RTUNE
CTUNE
RTrim
VIN
CO1
+
CI1 CI2
Vin+ Vout+
ON/OFF
Q1
VS-
+
CO2
MODULE
GE
Data Sheet
12V MicroTLynx
TM
12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 22
Mechanical Outline
Dimensions are in millimeters and (inches).
Tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless otherwise indicated]
x.xx mm 0.25 mm (x.xxx in 0.010 in.)
Side View
GE
Data Sheet
12V MicroTLynx
TM
12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 23
Recommended Pad Layout
Dimensions are in millimeters and (inches).
Tolerances: x.x mm 0.5 mm (x.xx in. 0.02 in.) [unless otherwise indicated]
x.xx mm 0.25 mm (x.xxx in 0.010 in.)
PIN FUNCTION
1 ON/OFF
2 VIN
3 SEQ
4 GND
5 TRIM
6 VOUT
7 VS+
8 VS-
9 PG
10 SYNC
GE
Data Sheet
12V MicroTLynx
TM
12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 24
Packaging Details
The 12V Micro TLynx
TM
modules are supplied in tape & reel as standard. Modules are shipped in quantities of 250 modules per reel.
All Dimensions are in millimeters and (in inches).
Reel Dimensions:
Outside Dimensions: 330.2 mm (13.00)
Inside Dimensions: 177.8 mm (7.00”)
Tape Width: 44.00 mm (1.732”)
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
December 5, 2019 ©2017 General Electric Company. All rights reserved. Page 25
Surface Mount Information
Pick and Place
The 12V Micro TLynxTM modules use an open frame construction
and are designed for a fully automated assembly process. The
modules are fitted with a label designed to provide a large
surface area for pick and place operations. The label meets all
the requirements for surface mount processing, as well as
safety standards, and is able to withstand reflow temperatures
of up to 300oC. The label also carries product information such
as product code, serial number and the location of manufacture.
Nozzle Recommendations
The module weight has been kept to a minimum by using open
frame construction. Variables such as nozzle size, tip style,
vacuum pressure and placement speed should be considered to
optimize this process. The minimum recommended inside
nozzle diameter for reliable operation is 3mm. The maximum
nozzle outer diameter, which will safely fit within the allowable
component spacing, is 7 mm.
Bottom Side / First Side Assembly
This module is not recommended for assembly on the bottom
side of a customer board. If such an assembly is attempted,
components may fall off the module during the second reflow
process. If assembly on the bottom side is planned, please
contact GE for special manufacturing process instructions.
Only ruggedized (-D version) modules with additional epoxy will
work with a customer’s first side assembly. For other versions,
first side assembly should be avoided
Lead Free Soldering
The 12V Micro TLynxTM modules are lead-free (Pb-free) and RoHS
compliant and fully compatible in a Pb-free soldering process.
Failure to observe the instructions below may result in the
failure of or cause damage to the modules and can adversely
affect long-term reliability.
Pb-free Reflow Profile
Power Systems will comply with J-STD-020 Rev. C
(Moisture/Reflow Sensitivity Classification for Nonhermetic Solid
State Surface Mount Devices) for both Pb-free solder profiles and
MSL classification procedures. This standard provides a
recommended forced-air-convection reflow profile based on the
volume and thickness of the package (table 4-2). The suggested
Pb-free solder paste is Sn/Ag/Cu (SAC). The recommended linear
reflow profile using Sn/Ag/Cu solder is shown in Fig. 51. Soldering
outside of the recommended profile requires testing to verify
results and performance. For questions regarding Land grid
array(LGA) soldering, solder volume; please contact GE for special
manufacturing process instructions
MSL Rating
The 12V Micro TLynxTM modules have a MSL rating of 2a.
Storage and Handling
The recommended storage environment and handling
procedures for moisture-sensitive surface mount packages is
detailed in J-STD-033 Rev. A (Handling, Packing, Shipping
and Use of Moisture/Reflow Sensitive Surface Mount
Devices). Moisture barrier bags (MBB) with desiccant are
required for MSL ratings of 2 or greater. These sealed
packages should not be broken until time of use. Once
the original package is broken, the floor life of the
product at conditions of 30°C and 60% relative
humidity varies according to the MSL rating (see J-STD-
033A). The shelf life for dry packed SMT packages will be
a minimum of 12 months from the bag seal date, when
stored at the following conditions: < 40° C, < 90% relative
humidity.
Figure 51. Recommended linear reflow profile using
Sn/Ag/Cu solder.
Post Solder Cleaning and Drying Considerations
Post solder cleaning is usually the final circuit-board
assembly process prior to electrical board testing. The
result of inadequate cleaning and drying can affect both
the reliability of a power module and the testability of the
finished circuit-board assembly. For guidance on
appropriate soldering, cleaning and drying procedures,
refer to Board Mounted Power Modules: Soldering and
Cleaning Application Note (AN04-001).
Per J-STD-020 Re v. C
0
50
100
150
200
250
300
Re flow Tim e (Se c ond s)
Reflow Temp (°C)
Heating Zone
1°C/Second
Peak Temp 260°C
* Min. Time Above 23 5°C
15 Seconds
*Time Above 217°C
60 Se c onds
Cooling
Zone
GE Data Sheet
12V MicroTLynxTM 12A: Non-Isolated DC-DC Power Modules
4.5Vdc –14Vdc input; 0.69Vdc to 5.5Vdc output; 12A Output Current
Contact Us
For more information, call us at
USA/Canada:
+1 888 546 3243, or +1 972 244 9288
Asia-Pacific:
+86.021.54279977*808
Europe, Middle-East and Africa:
+49.89.878067-280
www.gecriticalpower.com
GE Critical Power reserves the right to make changes to the product(s) or information contained herein without notice, and no
liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s)
or information.
December 5, 2019 ©2017 General Electric Company. All International rights reserved. Version 1.3
Ordering Information
Please contact your GE Sales Representative for pricing, availability and optional features.
Table 6. Device Codes
Device Code Input
Voltage Range
Output
Voltage
Output
Current
On/Off
Logic
Connector
Type Comcodes
APTS012A0X3-SRZ 4.5 – 14Vdc 0.69 – 5.5Vdc 12A Negative SMT CC109126042
APTS012A0X43-SRZ 4.5 – 14Vdc 0.69 – 5.5Vdc 12A Positive SMT CC109126050
APTS012A0X3-SRDZ 4.5 – 14Vdc 0.69 – 5.5Vdc 12A Negative SMT CC109150224
* Special codes, consult factory before ordering
Table 7. Coding Scheme
TLynx
family
Sequencing
feature.
Input
voltage
range
Output
current
utput voltage
On/Off
logic
Options ROHS Compliance
AP T S 012A0 X 4 -SR -D Z
T = with Seq.
X = w/o Seq.
S = 4.5 -
14V
12.0A X =
programmable
output
4
= positive
N
o entry =
n
egative
S = Surface
Mount
R = Tape&Reel
D = 105C
operating
ambient, 40G
operating shock
as per MIL Std
810F
Z = ROHS6