Data Sheet
October 1, 2009
Austin LynxTM SIP Non-Isolated dc-dc Power Modules:
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Document Name: FDS02-047EPS ver.1.6
PDF Name: Austin Lynx SIP
Applications
n
Distributed Power Architectures
n
Wireless Networks
n
Access and Optical Network Equipment
n
Enterprise Networks
n
Data processing Equipment
n
Latest generation IC’s (DSP, FPGA, ASIC) and Micropro-
cessor-powered applications.
Options
n
Remote Sense
n
Long Pins: 5.08 mm ± 0.25 mm
(0.200 in ± 0.010 in)
Features
n
Compatible with RoHS EU Directive 200295/EC (-Z Ver-
sions)
n
Compatible in RoHS EU Directive 200295/EC with lead
solder exemption (non -Z versions)
n
Delivers up to 10A output current
n
High efficiency: 95% at 3.3V full load
n
Small size and low profile:
50.8 mm x 8.10mm x 12.7mm
(2.0 in x 0.32 in x 0.5 in)
n
Light Weight 0.27 oz(7.5 g)
n
Cost-efficient open frame design
n
High reliability: MTBF > 10M hours at 25 °C
n
Remote On/Of f
n
Output overcurrent protection with auto-restart
n
Overtemperature protection
n
Constant frequency (300 kHz,typical)
n
Adjustable output voltage ± 10% of VO (–5% to + 10% for
0.9 V output)
n
Single-In-Line (SIP) Package
n
UL* 60950 Recognized, CSA† C22.2 No. 60950-0 0 Certi-
fied, and VDE‡ 0805 (IEC60950, 3rd edition) Licensed
RoHS Compliant
Description
Austin L ynx™ power modules are non-isolated dc-dc converters that can deliver 10 A of output curren t with full load efficiency of
95% at 3.3 V output. These open frame modules in SIP package enable designers to develop cost-and space efficient solutions.
Standard features include remote ON/OFF, output voltage adjustment, overcurrent and overtemperature protection.
* 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.
§ This product is intended for integration into end-use equipment. All the required procedures for CE marking of end-use equipment should be followed. (The CE mark is placed on selected products.)
** ISO is a registered trademark of the Internation Organization of Standards
Lineage Power 2
Data Sheet
October 1, 2009 3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Austin LynxTM SIP Non-Isolated dc-dc Power Modules:
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 implie d 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 reliabiltiy.
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.
CAUTION: This power module is not internally fused. An input line fuse must always be used.
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 time-delay fuse with a maximum rating of 20A.
Parameter Device Symbol Min Max Unit
Input Voltage:
Continuous All VIN 0 6.5 Vdc
Operating Ambient Temperature All TA –40 85 °C
Storage Temperature All Tstg –55 125 °C
Parameter Device Symbol Min Typ Max Unit
Operating Input Voltage AXH010A0S0R9
AXH010A0S1R0
AXH010A0P
AXH010A0M
AXH010A0Y
AXH010A0D
AXH010A0G
AXH010A0F
VIN
VIN
VIN
VIN
VIN
VIN
VIN
VIN
3.0
3.0
3.0
3.0
3.0
3.0
3.0
4.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Maximum Input Current
(VI = 0 to VI,max; IO = IO,max) II,max 9.5 A
Input Reflected-Ripple Current
(5 Hz to 20 MHz; 1 µH source impedance; TA = 25
°C; CIN = 200 µF)
30 mAp-p
Input Ripple Rejection
(100 - 120Hz) 40 dB
Lineage Power 3
Data Sheet
October 1, 2009 3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Austin LynxTM SIP Non-Isolated dc-dc Power Modules:
Electrical Specifications (continued)
General Specifications
Parameter Device Symbol Min Typ Max Unit
Output Voltage Set Point
(VI = 5V; IO = IO,max; TA = 25 °C) AXH010A0S0R9
AXH010A0S1R0
AXH010A0P
AXH010A0M
AXH010A0Y
AXH010A0D
AXH010A0G
AXH010A0F
VO,set
VO,set
VO,set
VO,set
VO,set
VO,set
VO,set
VO,set
0.886
0.985
1.182
1.47
1.764
1.97
2.45
3.234
0.9
1.0
1.2
1.5
1.8
2.0
2.5
3.3
0.914
1.015
1.218
1.53
1.836
2.03
2.55
3.366
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Output Voltage
(Over all operating input voltage, resistive load, and
temperature conditions at steady state until end of life.)
AXH010A0S0R9
AXH010A0S1R0
AXH010A0P
AXH010A0M
AXH010A0Y
AXH010A0D
AXH010A0G
AXH010A0F
VO
VO
VO
VO
VO
VO
VO
VO
0.873
0.970
1.164
1.455
1.746
1.94
2.425
3.2
—
—
—
—
—
—
—
—
0.927
1.03
1.236
1.545
1.854
2.06
2.575
3.4
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Output Regulation:
Line (VI = VI, min to VI, max)
Load (IO = IO, min to IO, max)
Temperature (TA = TA, min to TA, max)
All
All
All
—
—
—
—
—
—
0.2
0.4
0.5
%VO, set
%VO, set
%VO, set
Output Ripple and Noise
Measured across 10µF Tantalum, 1µF
Ceramic,
RMS (5 Hz to 20 MHz bandwidth)
Peak-to-peak (5 Hz to 20 MHz bandwidth) All
All —
——
—7
25 15
30 mVrms
mVp-p
Output Current All IO — 10 A
Output Current-limit Inception
(VO = 90% of VO, set) All IO 17 A
Output Short-circuit Current (Average)
VO = 0.25 V All IO 3 A
Efficiency
(VI = VIN, nom; IO = IO, max), TA = 25 °C AXH010A0S0R9
AXH010A0S1R0
AXH010A0P
AXH010A0M
AXH010A0Y
AXH010A0D
AXH010A0G
AXH010A0F
η
η
η
η
η
η
η
η
83
85
86
88
90
91
92
95
%
%
%
%
%
%
%
%
Switching Frequency All fsw — 300 — kHz
Parameter Min Typ Max Unit
Calculated MTBF (IO = 100% of IO, max TA = 25 °C) 10,240,000 Hours
Weight — 6.5(0.23) 7.5(0.27) g (oz.)
Lineage Power 4
Data Sheet
October 1, 2009 3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Austin LynxTM SIP Non-Isolated dc-dc Power Modules:
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
Remote On/Off Signal Interface
(VI = VI,min to VI, max; open collector pnp or Compatible, V on/off
signal referenced to GND. See Figure 20 and Feature
Descriptions section)
Logic Low (ON/OFF pin open—Module On)
Ion/off = 0.0 µA
Von/off = 0.3 V
Logic High (VON/OFF > 2.5 V)—Module Off
Ion/off = 1 mA
Von/off = 5.5 V
Turn-on Time
(IO = 80% of IO, max; VO within ±1% of steady state; see
Figure 12)
All
All
All
All
All
Von/off
Ion/off
Von/off
Ion/off
—
–0.7
5
0.3
10
6.5
1
V
µA
V
mA
ms
Output voltage set-point adjustment range (TRIM) AXH010A0S0R9
All Vtrim
Vtrim -5
-10 +10
+10 %VO, set
%VO, set
Overtemperaute Protection (shutdown) All TQ1/TQ2 — 110 — °C
Input Undervoltage Lockout
Turn-on Threshold
Turn-off Threshold All
All 2.63
2.47 2.8
2.7 2.95
2.9 V
V
Lineage Power 5
Data Sheet
October 1, 2009 3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Austin LynxTM SIP Non-Isolated dc-dc Power Modules:
Characteristic Curves
The following figures provide typical characteristics curves (TA = 25 °C).
Figure 1. Input Voltage and Current Characteristics at
10A output current.
Figure 2. Output Voltage and current characteristics.
Figure 3. Converter Efficiency vs Outpu t Curr e nt
AXH010A0S0R9(0.9V Output voltage).
Figure 4. Converter Efficiency vs Output Curr en t
AXH010A0S1R0 (1.0V Output Voltage).
Figure 5. Converter Efficiency vs Output Curr en t
AXH010A0P (1.2V Output Voltage).
Figure 6. Converter Efficiency vs Output Curr en t
AXH010A0M (1.5V Output Voltage).
2 2.5 3 3.5 4 4.5 5 5.5
12
10
8
6
4
2
0
II, max = 9.5 A
INPUT V OLTAGE, VI (V)
INPUT CURRENT, I
I
(A)
100%
75%
50%
25%
0
0% 369 18
12 15
OUTPUT CURRENT, IO (A)
NORMALIZED OUTPUT VOLTAGE, VO
VI = 5.5 V
VI = 5.0 V
VI = 3.3 V
VI = 3.0 V
74
76
78
80
82
84
86
88
90
12345678910
OUTPUT CURRENT, IO (A)
EFFICIENCY, η (%)
VI = 3.0 V
VI = 3.3 V
VI = 5.0 V
VI = 5.5 V
74
76
78
80
82
84
86
88
90
92
V
I
= 3.0 V
V
I
= 3.3 V
V
I
= 5.0 V
V
I
= 5.5 V
OUTPUT CURRENT, I
O
(A)
EFFICIENCY, η (%)
12345678910
OUTPUT CURRENT, I
O
(A)
EFFICIENCY, η (%)
78
80
82
84
86
88
90
92
12345678910
V
I
= 3.0 V
V
I
= 3.3 V
V
I
= 5.0 V
V
I
= 5.5 V
OUTPUT CURRENT, I
O
(A)
EFFICIENCY, η (%)
82
84
86
88
90
92
94
12345678910
V
I
= 3.0 V
V
I
= 3.3 V
V
I
= 5.0 V
V
I
= 5.5 V
Lineage Power 6
Data Sheet
October 1, 2009 3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Austin LynxTM SIP Non-Isolated dc-dc Power Modules:
Characteristic Curves
The following figures provide typical characteristics curves at room temperature (TA = 25 °C)
Figure 7. Converter Efficiency vs Outpu t Curr ent
AXH010A0Y (1.8V Output Voltage).
Figure 8. Converter Efficiency vs Outpu t Curr ent
AXH010A0D (2.0V Output Voltage).
Figure 9. Converter Efficiency vs Outpu t Curr ent
AXH010A0G (2.5V Output Voltage).
Figure 10. Converter Efficiency vs Output Current
AXH010A0F (3.3V Output Voltage).
Figure 11. Typical Output Ripple Voltage at 10A Output
Current.
Figure 12. Typical Start-up Transien t.
84
86
88
90
92
94
1234567891
0
OUTPUT CURRENT, I
O
(A)
EFFICIENCY, η (%)
V
I
= 3.0 V
V
I
= 3.3 V
V
I
= 5.0 V
V
I
= 5.5 V
86
88
90
92
94
96
1234567891
0
OUTPUT CURRENT, I
O
(A)
EFFICIENCY, η (%)
V
I
= 3.0 V
V
I
= 3.3 V
V
I
= 5.0 V
V
I
= 5.5 V
88
90
92
94
96
98
1234567891
0
OUTPUT CURRENT, I
O
(A)
EFFICIENCY, η (%)
V
I
= 3.0 V
V
I
= 3.3 V
V
I
= 5.0 V
V
I
= 5.5 V
93.5
94
94.5
95
95.5
96
96.5
97
1234567891
0
OUTPUT CURRENT, IO (A)
EFFICIENCY, η (%)
VI = 4.5 V
VI = 5.0 V
VI = 5.5 V
TIME, t (2 µs/div)
OUTPUT V OLTA GE, V
O
(V)
(20 mV/div)
VI = 3.0 V
VI = 3.3 V
VI = 5.0 V
VI = 5.5 V
TIME, t (2 ms/div)
OUTPUT V OLTAGE, V
O
(V)
VIN SOURCE
Lineage Power 7
Data Sheet
October 1, 2009 3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Austin LynxTM SIP Non-Isolated dc-dc Power Modules:
Characteristic Curves
The following figures provide typical characteristics curves at room temperatu re (TA = 25 °C)
Figure 13. Typical Transient response to step load
change at 2.5 A/µs from 100% to 50% of
IO,max at 3.3 V Input
(Cout =1 µF ceramic, 10 µF Tantalum).
Figure 14. Typical Transient response to step load
change at 2.5 A/µs from 50% to 100% of
IO,max at 3.3 V Input
(Cout =1 µF ceramic, 10 µF Tantalum).
TIME, t (5 µs/div)
OUTPUT CURRENT I
O
( 2.5 A/div) OUTPUT VOLTAGE V
O
(100 mV/div)
TIME, t (5 µs/div)
OUTPUT CURRENT I
O
( 2.5 A/div) OUTPUT VOLTAGE V
O
(100 mV/div)
Lineage Power 8
Data Sheet
October 1, 2009 3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Austin LynxTM SIP Non-Isolated dc-dc Power Modules:
Test Configurations
Note: Measure input reflected ripple current with a simulated source
inductance (LTEST) of 1µH. Capacitor CS offsets possible bat-
tery impedance. Measure current as shown above.
Figure 15. Input Reflected Ripple Current Test Setup.
Note: Scope measurements should be made using a BNC socket,
with a 10 µF tantalum capacitor and a 1 µF ceramic capcitor.
Position the load between 51 mm and 76 mm (2 in and 3 in)
from the module
Figure 16. Peak-to-Peak Output Ripple Measurement
Test Setup.
Note: All voltage measurements to be taken at the module termi-
nals, as shown above. If sockets are used then Kelvin con-
nections are required at the module terminals to avoid
measurement errors due to socket contact resistance.
Figure 17. Output Voltage and Efficiency Test Setup.
Design Considerations
Input Source Impedance
To maintain low-noi se and ripple at the input voltage, it is
critical to use low ESR capacitors at the input to the module.
18 shows the input ripple voltage (mVp-p) for various output
models using a 150 µF low ESR polymer capacitor (Pana-
sonic p/n: EEFUE0J151R, Sanyo p/n: 6TPE150M) in parallel
with 47 µF ceramic capacitor (Panasonic p/n: ECJ-
5YB0J476M,
Taiyo Yuden p/n: CEJMK432BJ476MMT). Figure 19 depicts
much lower input voltage ripple when input capacitance is
increased to 450 µF (3 x 150 µF) polymer capacitors in par-
allel with 94 µF (2 x 47 µF) ceramic capacitor.
The input ca pacit ance sh ould be able to handle an AC ripple
current of at least:
Figure 18. Input Voltage Ripple for Various
Output Models, IO = 10 A
(CIN = 150 µF polymer // 47 µF ceramic).
Figure 19. Input Voltage Ripple for Various
Output Models, IO = 10 A
(CIN = 3x150 µF polymer // 2x47 µF ceramic).
TO OSCILLOSCOPE
BATTERY
L
1 µH
CS 220 μF
ESR < 0.1 Ω
@ 20 °C, 100 kHz
VI (+)
VI (–)
2 x 100µF
Tantalum
VO
GND
RESISTIVE
LOAD
SCOPE
10 µF
COPPER STRIP
TANTALUM
1µF
CERAMIC
VIVO
IIIO
SUPPLY
C
ONTACT RESISTANCE
CONTACT AND
DISTRIBUTION LOSSES
LOAD
GND
ηVO(+) VO(-)
–[]IO
×
VI(+) VI(-)
–[]II
×
------------------------------------------------
⎝⎠
⎛⎞
100×=
Irms Iout Vout
Vin
-----------1Vout
Vin
-----------
–= Arms
0
50
100
150
200
0.5 1 1.5 2 2.5 3
VI = 5 V
VI = 3.3 V
OUTPUT VOLTAGE, VO (Vdc)
INPUT VOLTAGE NOISE (mV p-p)
0
25
50
75
100
0.5 1 1.5 2 2.5 3
VI = 5 V
VI = 3.3 V
OUTPUT VOLTAGE, V
O
(Vdc)
INPUT VOLTAGE NOISE (mV p-p)
Lineage Power 9
Data Sheet
October 1, 2009 3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Austin LynxTM SIP Non-Isolated dc-dc Power Modules:
Design Considerations (continued)
Input Source Impedance (continued)
The power module should be connected to a low ac-imped -
ance input source. Highly inductive source impedances can
affect the sta bility of the module. An input capacitance must
be placed close to the input pins of the module, to filter ripple
current and ensure module stability in the presence of induc-
tive traces that supply the input voltage to the module.
Safety Considerations
For safety-agency approval of the system in which the power
module is used, the power module must be installed in com-
pliance with the spacing and separation requirements of the
end-use safety agency standard, i.e., UL60950, CSA C22.2
No. 60950-00, and
VDE 0805:2001-12 (IEC60950, 3rd Ed).
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 EL V (extra-low voltage) outputs when
all inputs are ELV.
The input to these units is to be provided with a maximum
20A time-delay fuse in the unearthed lead.
Lineage Power 10
Data Sheet
October 1, 2009 3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Austin LynxTM SIP Non-Isolated dc-dc Power Modules:
Feature Descriptions
Remote On/Off
The Austin Lynx™ SIP power modules feature an
On/Off pin for remote On/Off operation. If not using the
remote On/Off pin, leave the pin open (module will be On).
The On/Off pin signal (V on/off) is referenced to ground. To
switch the module on and off using remote On/Off, connect
an open collector pnp transistor between the On/Off pin and
the VI pin (see Figure 20).
During a logic-low when the transistor is in the Off state, the
power module is On and the maximum
Von/off generated by the module is 0.3V. The maximum
leakage current of the switch when Von/off = 0.3V and VI =
5.5V (Vswitch = 5.2V) is 10 µA. During a logic-high when the
transistor is in the active state, the power module is Off. Dur-
ing this state, Von/off = 2.5V to 5.5V and the maximum Ion/
off = 1mA.
Figure 20. Remote On/Off Implementation.
Output Voltage Set-Point Adjustment
(Trim)
Output voltage set-point adjustmen t allows the output volt-
age set point to be increased or decreased by connecti ng
either an external resistor or a voltage source between the
TRIM pin and either the VO pin (decrease output voltage) or
GND pin (increase output voltage).
For TRIM-UP using an external resistor , connect Rtrim-up
between the TRIM and GND pins (Figure 21). The value of
Rtrim-up defined as:
|DVout| is the desired output voltage set-point adjus tment
Rbuffer (internal to the module) is defined in Table 1 for vari-
ous models.
Table 1. Austin Lynx™ Trim Value s
Note: VO, set is the typical output voltage for the unit.
For example, to trim-up the output voltage of 1.5V
module (AXH010A0M) by 8% to 1.62V, Rtrim-up is
calculated as follows:
Figure 21. Circuit Configuration to trim-up output
voltage.
For trim-down using an external resistor, connect Rtrim-
down between the TRIM and VOUT pins of the module
(Figure 22). The value of Rtrim-down is defined as:
Vout is the typical set point voltage of a module
|DVout| is the desired output voltage adjustment
Rbuffer (internal to the module) is defined in Table 3 for vari-
ous models
For example, to trim-down the output voltage of 2.5 V mod-
ule (AXH010G) by 8% to 2.3V, Rtrim-down is
calculated as follows:
Vo
+
Vswitch
Ion/off ON/OFF
VI
GND
Von/off
Rtrim up–24080
ΔVout
------------------ Rbuffer
–= kΩ
VO, set Rbuffer
3.3 V 59 kW
2.5 V 78.7 kW
2.0 V 100 kW
1.8 V 100 kW
1.5 V 100 kW
1.2 V 59 kW
1.0 V 30.1 kW
0.9 V 5.11 kW
ΔVout 0.12V=
Rbuffer 100kΩ=
Rtrim up–24080
0.12
---------------100k–=
Rtrim up–100.66kΩ=
VO
TRIM
Rtrim-up
RLOAD
AXH010A0M
GND
Rtrim-down
out
.
–
ΔVout
-------------------------1–
⎝⎠
⎛⎞
x30100 Rbuffer
–= k
ΔVout 0.2V=
V
out 2.5V=
Lineage Power 11
Data Sheet
October 1, 2009 3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Austin LynxTM SIP Non-Isolated dc-dc Power Modules:
Feature Descriptions (continued)
Output Voltage Set-Point Adjustment
(Trim) (continued)
Figure 22. Circuit Configuration to Decrease Output
Voltage.
For T rim-up using an external voltage source, apply a voltage
from TRIM pin to ground using the following equation:
For Trim-down using an external voltage source, apply a volt-
age from TRIM pin to ground using the following equation:
Vtrim-up is the external source voltage for trim-up
Vtrim-down is the external source voltage for trim-down
|DVout| is the desired output voltage set-point adjus tment
Rbuffer (internal to the module) is defined in Table 3 for vari-
ous models
If the TRIM feature is not being used, le ave the TRIM pin dis-
connected.
Remote Sense
Austin Ly nx™ SIP power modules offer an opti on for a
Remote Sense function. When the Device Code descripti on
includes a suffix “3”, pin 3 is added to the module and the
Remote Sense is an active feature. See the Ordering Infor-
mation at the end of this document for more information.
Remote Sense minimizes the effects of distribution losses by
regulating the voltage at the load via the SENSE and GND
connections (See 23). The voltage between the SENS E pin
and VO pin must not exceed 0.5V. Although both the Remote
Sense and Trim features can each in cre ase th e ou tp u t vol t-
age (VO), the maximum increase is not the sum of both. The
maximum VO increase is the larger of either the Remote
Sense or the Tr im.
The amount of power delivered by the module is define d as
the output voltage multiplied by the output current (VO x IO).
When using SENSE and/or TRIM, the output voltage of the
module can increase which, if the same output current is
maintained, increases the power output by the module. Make
sure that the maximum output power of the module remains
at or below the maximum rated power. When pin 3 is present
but the Remote Sense feature is not being used, leave Sense
pin disconnected.
Figure 23. Effective Circuit Configuration for Remote
Sense Operation.
Overcurrent Protection
To provide protection in a fault condition, the unit is equipped
with internal overcurrent protection. The unit operates nor-
mally once the faul t condition is remove d.
The power module will supply up to 170% of rated current for
less than 1.25 seconds before it enters thermal sh utdown.
Overtempera tur e Prot ec ti o n
To provide additional protection in a fault condition, the unit is
equipped with a nonlatched thermal shutdown circuit. The
shutdown circuit engages when Q1 or Q2 (shown in Figure
24) exceeds approximately 110 °C. The unit attempts to
restart when Q1 or Q2 cool down and cycles on and off while
the fault condition exists. Recovery from shutdown is accom-
plished when the cause of the overtemperature condition is
removed.
Rbuffer 78.7k=
Rtrim down–2.5 0.8–
0.2
---------------------1–
⎝⎠
⎛⎞
x30100 78700–=
Rtrim down–147.05kΩ=
VO
TRIM
Rtrim-down
RLOAD
GND
Vtrim-up 0.8 ΔVout xRbuffer
30100
------------------
–=
Vtrim-down 0.8 ΔVout xRbuffer
30100
------------------
+=
V
I
V
O
LOAD
GND
DISTRIBUTION LOSSES DISTRIBUTION LOSSES
SENSE
Lineage Power 12
Data Sheet
October 1, 2009 3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Austin LynxTM SIP Non-Isolated dc-dc Power Modules:
Thermal Considerations
The power module operates in a variety of thermal environ-
ments; however, sufficient cooling should be provided to
help ensure reliable operation of the unit. Heat is removed
by conduction, convection, and radiation to the surrounding
environment.
The thermal data presented is based on measurements
taken in a wind tunnel. The test setup shown in Figure 25
was used to collect data for Figures 26
and 27. Note that the airflow is parallel to the long axis of the
module as shown in Figure 24 and derati ng applies accord-
ingly.
Figure 24. Temperature Measurement Location .
The temperature at either location should not exceed
110 °C. The output powe r of the mo du le should not exceed
the rated power for the module (VO, set x IO, max).
Figure 25. Thermal Test Setup.
Convection Requirements for cooling
To predict the approximate cooling needed for the module,
refer to the Power Derating curves in Figures 26 and 27.
These derating curves are approximations of the ambient
temperatures and airflows required to keep the power mod-
ule temperature below its maximum rating. Once the module
is assembled in the actual system, the module’s temperature
should be checked as shown in Figure 24 to ensure it does
not exceed 110 °C.
Proper cooling can be verified by measuring the power mod-
ule’s temperature at Q1-pin 6 and Q2-pin 6 as shown in Fig-
ure 24.
Figure 26. Typical Power Derating vs output Current
for 3.3 Vin.
Figure 27. Typical Power Derating vs output Current
for 5.0 Vin.
Pin
6
Q2 Q1
Airflow
Air
flow
x
Power Module
W
ind Tunnel
PWBs
12.7
(0.50)
76.2
(3.0)
Probe Locatio
n
for measuring
airflow and
ambient
temperature
25.4
(1.0)
0
1
2
3
4
5
6
7
8
9
10
11
20 30 40 50 60 70 80 9
0
LOCAL AMBIENT TEMPERATURE, T
A
(˚C)
OUTPUT CURRENT I
O
(A)
2.0 m/s (400 ft./min.)
1.0 m/s (200 ft./min.)
0.5 m/s (100 ft./min.)
NATURAL CONVECTION
0
1
2
3
4
5
6
7
8
9
10
11
20 30 40 50 60 70 80 9
0
LOCAL AMBIENT TEMPERATURE, T
A
(˚C)
OUTPUT CURRENT I
O
(A)
2.0 m/s (400 ft./min.)
1.0 m/s (200 ft./min.)
0.5 m/s (100 ft./min.)
NATURAL CONVECTION
Lineage Power 13
Data Sheet
October 1, 2009 3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Austin LynxTM SIP Non-Isolated dc-dc Power Modules:
Through-Hole Lead-Free Soldering Infor-
mation
The RoHS-compliant through-hole products use the SAC
(Sn/Ag/Cu) Pb-free solder and RoHS-compliant components.
They are designed to be processed through single or dual
wave soldering machines. The pins have an RoHS-compli-
ant finish that is compatible with both Pb and Pb-free wave
soldering processes. A maximum preheat rate of 3°C/s is
suggested. The wave preheat process sh ould be such that
the temperature of the power module boa rd is kept below
210°C. For Pb solder, the recommended pot temperature is
260°C, while the Pb-free solder pot is 270°C max. Not all
RoHS-compliant through-hole pr oducts can be processed
with paste-through-hole Pb or Pb-free reflow process. If addi-
tional information is needed, ple ase consult with your Tyco
Electronics Power System representative for more details.
Post Solder Cleaning and Drying Considerations
Post solder cleaning is usually the final circuit-bo ard
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 Tyco
Electronics Board Mounted Power Modules: Soldering and
Cleaning Application Note (AP01-056EPS).
Solder Ball and Cleanliness Requirements
The open frame (no case or potting) power module will meet
the solder ball requirements per J-STD-001B. These require-
ments state that solder balls must neither be loose nor violate
the power module minimum electrical spacing.
The cleanline s s designator of the open frame power module
is C00 (per J specification).
Lineage Power 14
Data Sheet
October 1, 2009 3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Austin LynxTM SIP Non-Isolated dc-dc Power Modules:
Outline Diagram for Through-Hole Module
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.)
Document No: FDS02-047EPS ver.1.6
PDF Name: Austin Lynx SIP
Data Sheet
October 1, 2009 3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Austin LynxTM SIP Non-Isolated dc-dc Power Modules:
World Wide He a dquart ers
Line a ge P ow er Corp ora tion
601 Shiloh Road, Plano, TX75074, USA
+1-800-526-7819
(Outsid e U.S.A .: +1-972-244-9428)
www .li nea gepower.com
e-mail : techsu pp o rt1@l ineag epo wer. com
A sia-Paci fic Head qu arter s
T el: +65 6416 4283
Europe, Middle-East and Africa Hea dquarte rs
T el: +49 898 780 672 80
I nd ia Head qu arter s
T el: +91 80 28411633
Lineage Power reserves the right to make changes to the produc t(s) or information contained herei n without notice. No liability is assumed as a resul t of their use or
applic ation. No rights under any patent accompany the sale of any s uch product(s) or information.
Lineage Power DC-DC Products are protected under various patents. Information on these patents is available at www.lineagepower.com/patents
© 2009 Lineage Power Corporation, (Plano, Texas) Al l International Rights Res erved.
Ordering Information
Please contact your Lineage Power Sales Representative for pricing, availability and optional features.
Optional features can be ordered using the suffixes shown below. The suffixes follow the last letter of the Product Code and are
placed in descending alphanumerical order.
Table 2. Device Options
Input Voltage Output
Voltage Output
Current Efficiency Connector Type Device Code Comcodes
3.0 - 5.5 Vdc 0.9 V 10 A 83% Through-Hole AXH010A0S0R9 108966250
3.0 - 5.5 Vdc 1.0 V 10 A 85% Through-Hole AXH010A0S1R0 108966185
3.0 - 5.5 Vdc 1.2 V 10 A 86% Through-Hole AXH010A0P 108966235
3.0 - 5.5 Vdc 1.5 V 10 A 88% Through-Hole AXH010A0M 108966227
3.0 - 5.5 Vdc 1.8 V 10 A 90% Through-Hole AXH010A0Y 108966243
3.0 - 5.5 Vdc 2.0 V 10 A 91% Through-Hole AXH010A0D 108966193
3.0 - 5.5 Vdc 2.5 V 10 A 92% Through-Hole AXH010A0G 108966219
4.5 - 5.5 Vdc 3.3 V 10 A 95% Through-Hole AXH0 10A0F 108966201
3.0 - 5.5 Vdc 1.2 V 10 A 86% Through-Hole AXH010A0 PZ CC109106952
3.0 - 5.5 Vdc 1.5 V 10 A 88% Through-Hole AXH010A0MZ CC109106936
3.0 - 5.5 Vdc 1.8 V 10 A 90% Through-Hole AXH010A0 YZ CC109101788
3.0 - 5.5 Vdc 2.0 V 10 A 91% Through-Hole AXH010A0DZ CC10 9106845
3.0 - 5.5 Vdc 2.5 V 10 A 92% Through-Hole AXH010A0GZ CC109101771
4.5 - 5.5 Vdc 3.3 V 10 A 95% Through-Hole AXH010A0FZ CC109104898
Option Suffix
Remote Sense 3
Long Pins:
5.08 mm ± 0.25 mm
(0.20 in ± 0.010 in.)
5
RoHS Compliant -Z