PRODUCT OVERVIEW
Connection Diagram
Figure 1. OKL2-T/6-W12
Note: Murata Power Solutions strongly recommends an external input fuse, F1. See specifi cations.
External
DC
Power
Source
F1 On/Off
Control
Common
Common
Sequence/Tracking
(OKL2 Models)
Power Good
Open = On
Closed = Off
+Vin +Vout
Trim
Sense
Controller
Reference and
Error Amplifier
t4XJUDIJOH
t’JMUFST
t$VSSFOU4FOTF
(Positive
On/Off)
Contents Page
Description, Connection Diagram, Photograph 1
Ordering Guide, Model Numbering, Product Label 2
Mechanical Specifi cations, Input/Output Pinout 3
Detailed Electrical Specifi cations 4
Output Voltage Adjustment, Application Notes 5
Performance Data and Oscillograms 8
Tape and Reel Information 15
The OKL-T/6-W12 series are miniature non-iso-
lated Point-of-Load (PoL) DC/DC power converters
for embedded applications. Featuring inspectable
Land Grid Array (iLGA) format, the OKL-T/6-W12
measures only 0.48 x 0.48 x 0.283 inches max.
(12.2 x 12.2 x 7.2 mm max.).
The wide input range is 4.5 to 14 Volts DC.
The maximum output current is 6 Amps. Based
on fi xed-frequency synchronous buck converter
switching topology, the high power conversion
effi cient Point of Load (PoL) module features
programmable output voltage and On/Off control.
These converters also include under voltage lock
out (UVLO), output short circuit protection, and
over-current protections.
An optional sequence/tracking feature on
OKL2-T/6-W12 models allows power sequencing
of PoL’s. These units meet all standard UL/EN/IEC
60950-1 safety certifi cations (2nd Edition) and RoHS-6
hazardous substance compliance.
FEATURES
■ iLGA inspectable Land Grid Array
■ 4.5-14Vdc input voltage range
■ Programmable output voltage from 0.591-5.5Vdc
■ Drives up to 300 µF ceramic capacitive loads
■ High power conversion effi ciency at 93%
■ Outstanding thermal derating performance
■ Short circuit and over current protection
■ On/Off control and Power Good signal
■ Optional Sequence/Tracking operation (OKL2-T/6-
W12 models)
■ Meets UL/EN/IEC 60950-1 safety, 2nd Edition
■ RoHS-6 hazardous substance compliance
OKL-T/6-W12 Series
Programmable Output 6-Amp iLGA SMT PoLs
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
www.murata-ps.com
email: sales@murata-ps.com
Typical unit
18 May 2010 MDC_OKL-T/6-W12 Series.A04 Page 1 of 15
Performance Specifi cations and Ordering Guide
➀ The output range is limited by Vin. See detailed specs.
➁ All specifi cations are at nominal line voltage, Vout=nominal (5V) and full load, +25 deg.C.
unless otherwise noted.
Output capacitors are 10 µF ceramic. Input cap is 22 µF. See detailed specifi cations.
I/O caps are necessary for our test equipment and may not be needed for your application.
➂ Use adequate ground plane and copper thickness adjacent to the converter.
fRipple and Noise (R/N) and no-load input current are shown at Vout=1V. See specs for details.
ORDERING GUIDE
Model Number
Output Input Effi ciency On/Off
Polarity
Seq/
Track
Package - Pinout P83
Vout
(Volts) ➀
Iout (Amps,
max.)
Power
(Watts)
R/N (mV p-p)
Max. ➃
Regulation (max.) Vin nom.
(Volts)
Range
(Volts) ➀
Iin, no load
(mA) ➃
Iin, full load
(Amps)
Case C83
inches (mm)
Line Load Min. Typ.
OKL-T/6-W12P-C 0.591-5.5 6 30 20 ±0.25% ±0.25% 12 4.5-14 20 2.69 91% 93% Pos. no 0.48x0.48x0.283 max
(12.2x12.2x7.2) max
OKL-T/6-W12N-C 0.591-5.5 6 30 20 ±0.25% ±0.25% 12 4.5-14 20 2.69 91% 93% Neg. no 0.48x0.48x0.283 max
(12.2x12.2x7.2) max
OKL2-T/6-W12P-C 0.591-5.5 6 30 20 ±0.25% ±0.25% 12 4.5-14 20 2.69 91% 93% Pos. yes 0.48x0.48x0.283 max
(12.2x12.2x7.2) max
OKL2-T/6-W12N-C 0.591-5.5 6 30 20 ±0.25% ±0.25% 12 4.5-14 20 2.69 91% 93% Neg. yes 0.48x0.48x0.283 max
(12.2x12.2x7.2) max
OKL-T/6-W12 Series
Programmable Output 6-Amp iLGA SMT PoLs
www.murata-ps.com email: sales@murata-ps.com
Product Label
Because of the small size of these products, the product label contains a
character-reduced code to indicate the model number and manufacturing date
code. Not all items on the label are always used. Please note that the label
differs from the product photograph. Here is the layout of the label:
The label contains three rows of information:
First row – Murata Power Solutions logo
Second row – Model number product code (see table)
Third row – Manufacturing date code and revision level
The manufacturing date code is four characters:
First character – Last digit of manufacturing year, example 2009
Second character – Month code (1 through 9 and O through D)
Third character – Day code (1 through 9 = 1 to 9, 10=O and
11 through 31 = A through Z)
Fourth character – Manufacturing information
Figure 2. Label Artwork Layout
XXXXXX Product code
Mfg.
date
code
Revision levelYMDX Rev.
Model Number Product Code
OKL-T/6-W12P-C L01106
OKL-T/6-W12N-C L00106
OKL2-T/6-W12P-C L21106
OKL2-T/6-W12N-C L20106
PART NUMBER STRUCTURE
Okami Non-isolated PoL
Maximum Rated Output
Current in Amps
LGA Surface Mount
Sequence/tracking
Blank = Not installed
2 = Installed
Trimmable Output
Voltage Range
0.591-5.5Vdc
Input Voltage Range
4.5-14Vdc
On/Off Polarity
P = Positive Polarity
N = Negative Polarity
OK L 2 -/ W12-T 6 C-
RoHS Hazardous
Substance Compliance
C = RoHS-6 (does not claim EU RoHS exemption
7b–lead in solder)
N
18 May 2010 MDC_OKL-T/6-W12 Series.A04 Page 2 of 15
MECHANICAL SPECIFICATIONS
OKL-T/6-W12 Series
Programmable Output 6-Amp iLGA SMT PoLs
www.murata-ps.com email: sales@murata-ps.com
INPUT/OUTPUT CONNECTIONS
Pin Function
1 On/Off Control*
2VIN
3 Ground
4V
OUT
5 Sense
6 Trim
7 Ground
8 No Connection
9 Sequence/Tracking
10 Power Good Out
11 No Connection
12 No Connection
*The Remote On/Off can be provided with
either positive (P suffi x) or negative (N
suffi x) polarity
Figure 3. OKL-T/6-W12 Mechanical Outline
18 May 2010 MDC_OKL-T/6-W12 Series.A04 Page 3 of 15
Third Angle Projection
Dimensions are in inches (mm shown for ref. only).
Components are shown for reference only.
Tolerances (unless otherwise specified):
.XX ± 0.02 (0.5)
.XXX ± 0.010 (0.25)
Angles ± 1˚
0.330 (8.38)
0
0.060 (1.52)
0.150 (3.81)
0.240 (6.10)
0.240 (6.10)
0.420 (10.67)
0
0.060 (1.52)
0.195 (4.95)
0.375 (9.53)
0.150 (3.81)
0.375 (9.53)
0.420 (10.67)
Bottom View
Top View
Side View
Bottom View
ViewEnd
0.48
(12.19)
0.48
(12.19)
0.283
(7.2)
max.
9
VinGnd
Vout
On/Off
Seq
NCGnd
NC
Trim
NC
Sense 1
24
5
11
6
12
10
3
87
0.090
(2.29)
C
L
0.090
(2.29)
0.090
(2.29)
0.045
(1.14)
0.180
(4.57)
0.135
(3.43)
0.480 (12.19)
0.180 (4.57)
0.180 (4.57)
0.180
(4.57)
0.135 (3.43)
Vin
10
9
8
6
11
5
432
1Sense
NC
TrimNCGndSeq NC
On/Off
Vout
Gnd
Recommended Footprint
-through the Board-
(1.01 x 1.01)
0.040 x 0.040 x9
0.070 x 0.160 x3
(1.77 x 4.07)
712
C
L
PGood
PG
0.480 REF (12.19)
NOTE:
This semicircle is connected to
Vout and should not make any
other connection.
Performance and Functional Specifi cations
See Note 1
Input
Input Voltage Range See Ordering Guide and Note 7.
Isolation Not isolated
Start-Up Voltage 4.2 V
Undervoltage Shutdown (see Note 15) 3.4 V
Overvoltage Shutdown None
Refl ected (Back) Ripple Current (Note 2) TBD mA pk-pk
Internal Input Filter Type Capacitive
Recommended External Fuse TBD
Reverse Polarity Protection None, install external fuse
Input Current:
Full Load Conditions See Ordering Guide
Inrush Transient TBD A2Sec.
Shutdown Mode (Off, UV, OT) 1 mA
Output in Short Circuit 10 mA
Low Line (Vin=Vmin) 4.54 A.
Remote On/Off Control (Note 5)
Negative Logic ON = Open pin or -0.2V to +0.3V. max.
OFF = +3.5V min. to +Vin max.
Positive Logic ON = Open pin (internally pulled up) or
+3.5V to +Vin max.
OFF = -0.3V to +0.8V. max. or ground
Current 1 mA max.
Tracking/Sequencing (optional)
Slew Rate 2 Volts per millisecond, max.
Tracking accuracy, rising input Vout = ±100 mV of Sequence In
Tracking accuracy, falling input Vout = ±100 mV of Sequence In
Output
Output Power 30.45W max.
Output Voltage Range See Ordering Guide
Minimum Loading No minimum load
Accuracy (50% load, untrimmed) ±1.5 % of Vnominal
Voltage Output Range (Note 13) See Ordering Guide
Overvoltage Protection (Note 16) None
Temperature Coeffi cient TBD per °C of Vout range
Ripple/Noise (20 MHz bandwidth) See Ordering Guide and note 8
Line/Load Regulation See Ordering Guide and note 10
Effi ciency See Ordering Guide
Maximum Capacitive Loading (Note 14)
Cap-ESR=0.001 to 0.01 Ohms 300 F
Cap-ESR >0.01 Ohms TBD
Current Limit Inception (Note 6)
(98% of Vout setting, after warm up) 11 Amps
Short Circuit Mode
Short Circuit Current Output 10 mA
Protection Method Hiccup autorecovery upon overload
removal. (Note 17)
Short Circuit Duration Continuous, no damage
(output shorted to ground)
Prebias Startup Converter will start up if the external
output voltage is less than Vnominal.
Power Good output open drain confi guration, 10 mA sink
PGood TRUE (HI) (Vset -10%) < Vout < (Vset +10%)
PGood FALSE (LO) 0.0V < Vout < 0.4V
Dynamic Characteristics
Dynamic Load Response 50Sec max. to within ±2% of fi nal value
(50-100% load step, di/dt=1A/μSec) (Note 1)
Peak Deviation ±450 mV
Start-Up Time 6 mSec for Vout=nominal (Vin On)
(Vin on or On/Off to Vout regulated) 6 mSec for Vout=nominal (Remote On/Off)
Switching Frequency 600 KHz
Environmental
Calculated MTBF (hours) OKL Models OKL2 Models
Telecordia method (4a) 6,229,000 5,896,000
Calculated MTBF (hours)
MIL-HDBK-217N2 method (4b) 5,596,000 4,861,000
Operating Temperature Range (Ambient, all output ranges)
See derating curves -40 to TBD with derating (Note 9)
Storage Temperature Range -55 to +125 °C.
Thermal Protection/Shutdown Included in PWM
Relative Humidity To 85%/+85 °C., non-condensing
Physical
Outline Dimensions See Mechanical Specifi cations
Weight 0.06 ounces (1.6 grams)
Safety Meets UL/cUL 60950-1, CSA-
C22.2 No. 60950-1, IEC/EN 60950-1,
2nd Edition
Restriction of Hazardous Substances RoHS-6 (does not claim EU RoHS exemption
7b–lead in solder)
Absolute Maximum Ratings
Input Voltage (Continuous or transient) 0 V. to +15 Volts max.
On/Off Control 0 V. min. to +14V max.
Input Reverse Polarity Protection None, install external fuse
Output Current (Note 7) Current-limited. Devices can withstand a
sustained short circuit without damage.
The outputs are not intended to accept
appreciable reverse current.
Storage Temperature -55 to +125 °C.
Lead Temperature See soldering specifi cations
Absolute maximums are stress ratings. Exposure of devices to greater than any of
any of these conditions may adversely affect long-term reliability. Proper operation
under conditions other than those listed in the Performance/Functional Specifi cations
Table is not implied nor recommended.
Specifi cation Notes:
(1) Specifi cations are typical at +25 °C, Vin=nominal (+12V.), Vout=nominal (+5V), full load, external caps and
natural convection unless otherwise indicated. Extended tests at full power must supply substantial forced
airfl ow.
All models are tested and specifi ed with external 10F ceramic output capacitors and a 22 F external
input capacitor. All capacitors are low ESR types. These capacitors are necessary to accommodate our test
equipment and may not be required to achieve specifi ed performance in your applications. However, Murata
Power Solutions recommends installation of these capacitors. All models are stable and regulate within
spec under no-load conditions.
(2) Input Back Ripple Current is tested and specifi ed over a 5 Hz to 20 MHz bandwidth. Input fi ltering is Cin=2 x
100 F ceramic, Cbus=1000 F electrolytic, Lbus=1 H.
(3) Note that Maximum Power Derating curves indicate an average current at nominal input voltage. At higher
temperatures and/or lower airfl ow, the DC/DC converter will tolerate brief full current outputs if the total
RMS current over time does not exceed the Derating curve.
(4a) Mean Time Before Failure is calculated using the Telcordia (Belcore) SR-332 Method 1, Case 3, ground fi xed
conditions, Tpcboard=+25 ˚C, full output load, natural air convection.
(4b) Mean Time Before Failure is calculated using the MIL-HDBK-217N2 method, ground benign, +25ºC., full
output load, natural convection.
(5) The On/Off Control Input should use either a switch or an open collector/open drain transistor referenced
to -Input Common. A logic gate may also be used by applying appropriate external voltages which do not
exceed +Vin.
(6) Short circuit shutdown begins when the output voltage degrades approximately 2% from the selected
setting.
OKL-T/6-W12 Series
Programmable Output 6-Amp iLGA SMT PoLs
www.murata-ps.com email: sales@murata-ps.com
18 May 2010 MDC_OKL-T/6-W12 Series.A04 Page 4 of 15
Specifi cation Notes, Cont.:
(7) Please observe the voltage input and output specifi cations in the Voltage Range Graph on page 7.
(8) Output noise may be further reduced by adding an external fi lter. At zero output current, the output may
contain low frequency components which exceed the ripple specifi cation. The output may be operated
indefi nitely with no load.
(9) All models are fully operational and meet published specifi cations, including “cold start” at –40˚ C.
(10) Regulation specifi cations describe the deviation as the line input voltage or output load current is varied
from a nominal midpoint value to either extreme.
(11) Other input or output voltage ranges will be reviewed under scheduled quantity special order.
(12) Maximum PC board temperature is measured with the sensor in the center of the converter.
(13) Do not exceed maximum power specifi cations when adjusting the output trim.
(14) The maximum output capacitive loads depend on the the Equivalent Series Resistance (ESR) of the external
output capacitor and, to a lesser extent, the distance and series impedance to the load. Larger caps will
reduce output noise but may change the transient response. Newer ceramic caps with very low ESR may
require lower capacitor values to avoid instability. Thoroughly test your capacitors in the application. Please
refer to the Output Capacitive Load Application Note.
(15) Do not allow the input voltage to degrade lower than the input undervoltage shutdown voltage at all times.
Otherwise, you risk having the converter turn off. The undervoltage shutdown is not latching and will
attempt to recover when the input is brought back into normal operating range.
(16) The outputs are not intended to sink appreciable reverse current.
(17) “Hiccup” overcurrent operation repeatedly attempts to restart the converter with a brief, full-current output.
If the overcurrent condition still exists, the restart current will be removed and then tried again. This short
current pulse prevents overheating and damaging the converter. Once the fault is removed, the converter
immediately recovers normal operation.
Output Voltage Adustment
The output voltage may be adjusted over a limited range by connecting an
external trim resistor (Rtrim) between the Trim pin and Ground. The Rtrim
resistor must be a 1/10 Watt precision metal fi lm type, ±0.5% accuracy or
better with low temperature coeffi cient, ±100 ppm/°C. or better. Mount the
resistor close to the converter with very short leads or use a surface mount
trim resistor.
In the tables below, the calculated resistance is given. Do not exceed the
specifi ed limits of the output voltage or the converter’s maximum power
rating when applying these resistors. Also, avoid high noise at the Trim
input. However, to prevent instability, you should never connect any capaci-
tors to Trim.
RTRIM (k:) = _____________
VOUT – 0.591
5.91
OKL-T/6-W12
Output Voltage Calculated Rtrim (KΩ)
5.0 V. 1.34
3.3 V. 2.18
2.5 V. 3.1
2.0 V. 4.19
1.8 V. 4.88
1.5 V. 6.50
1.2 V. 9.70
1.0 V. 14.45
0.591 V. ∞ (open)
Resistor Trim Equation, OKL-T/6-W12 models:
Input Fusing
Certain applications and/or safety agencies may require fuses at the inputs
of power conversion components. Fuses should also be used when there
is the possibility of sustained input voltage reversal which is not current-
limited. For greatest safety, we recommend a fast blow fuse installed in the
ungrounded input supply line.
The installer must observe all relevant safety standards and regulations.
For safety agency approvals, install the converter in compliance with the
end-user safety standard, i.e. IEC/EN/UL 60950-1.
Input Under-Voltage Shutdown and Start-Up Threshold
Under normal start-up conditions, converters will not begin to regulate
properly until the ramping-up input voltage exceeds and remains at the
Start-Up Threshold Voltage (see Specifi cations). Once operating, convert-
ers will not turn off until the input voltage drops below the Under-Voltage
Shutdown Limit. Subsequent restart will not occur until the input voltage
rises again above the Start-Up Threshold. This built-in hysteresis prevents
any unstable on/off operation at a single input voltage.
Users should be aware however of input sources near the Under-Voltage
Shutdown whose voltage decays as input current is consumed (such as
capacitor inputs), the converter shuts off and then restarts as the external
capacitor recharges. Such situations could oscillate. To prevent this, make
sure the operating input voltage is well above the UV Shutdown voltage AT
ALL TIMES.
Start-Up Time
Assuming that the output current is set at the rated maximum, the Vin to
Vout Start-Up Time (see Specifi cations) is the time interval between the
point when the ramping input voltage crosses the Start-Up Threshold and
the fully loaded regulated output voltage enters and remains within its
specifi ed accuracy band. Actual measured times will vary with input source
impedance, external input capacitance, input voltage slew rate and fi nal
value of the input voltage as it appears at the converter.
These converters include a soft start circuit to moderate the duty cycle of
its PWM controller at power up, thereby limiting the input inrush current.
The On/Off Remote Control interval from On command to Vout regulated
assumes that the converter already has its input voltage stabilized above
the Start-Up Threshold before the On command. The interval is measured
from the On command until the output enters and remains within its
specifi ed accuracy band. The specifi cation assumes that the output is fully
loaded at maximum rated current. Similar conditions apply to the On to Vout
regulated specifi cation such as external load capacitance and soft start
circuitry.
Recommended Input Filtering
The user must assure that the input source has low AC impedance to
provide dynamic stability and that the input supply has little or no inductive
content, including long distributed wiring to a remote power supply. The
converter will operate with no additional external capacitance if these
conditions are met.
APPLICATION NOTES
OKL-T/6-W12 Series
Programmable Output 6-Amp iLGA SMT PoLs
www.murata-ps.com email: sales@murata-ps.com
18 May 2010 MDC_OKL-T/6-W12 Series.A04 Page 5 of 15
For best performance, we recommend installing a low-ESR capacitor
immediately adjacent to the converter’s input terminals. The capacitor
should be a ceramic type such as the Murata GRM32 series or a polymer
type. Initial suggested capacitor values are 10 to 22 µF, rated at twice the
expected maximum input voltage. Make sure that the input terminals do
not go below the undervoltage shutdown voltage at all times. More input
bulk capacitance may be added in parallel (either electrolytic or tantalum)
if needed.
Recommended Output Filtering
The converter will achieve its rated output ripple and noise with no
additional external capacitor. However, the user may install more exter-
nal output capacitance to reduce the ripple even further or for improved
dynamic response. Again, use low-ESR ceramic (Murata GRM32 series)
or polymer capacitors. Initial values of 10 to 47 µF may be tried, either
single or multiple capacitors in parallel. Mount these close to the converter.
Measure the output ripple under your load conditions.
Use only as much capacitance as required to achieve your ripple and
noise objectives. Excessive capacitance can make step load recovery
sluggish or possibly introduce instability. Do not exceed the maximum rated
output capacitance listed in the specifi cations.
Input Ripple Current and Output Noise
All models in this converter series are tested and specifi ed for input
refl ected ripple current and output noise using designated external input/
output components, circuits and layout as shown in the fi gures below. The
Cbus and Lbus components simulate a typical DC voltage bus. Please note
that the values of Cin, Lbus and Cbus will vary according to the specifi c
converter model.
In fi gure 5, the two copper strips simulate real-world printed circuit
impedances between the power supply and its load. In order to minimize
circuit errors and standardize tests between units, scope measurements
should be made using BNC connectors or the probe ground should not
exceed one half inch and soldered directly to the test circuit.
C
IN
V
IN
C
BUS
L
BUS
C
IN
= 2 x 100µF, ESR < 700mΩ @ 100kHz
C
BUS
= 1000µF, ESR < 100mΩ @ 100kHz
L
BUS
= 1µH
+INPUT
-INPUT
CURRENT
PROBE
TO
OSCILLOSCOPE
+
–
+
–
Figure 4: Measuring Input Ripple Current
Minimum Output Loading Requirements
All models regulate within specifi cation and are stable under no load to full
load conditions. Operation under no load might however slightly increase
output ripple and noise.
Temperature Derating Curves
The graphs in the next section illustrate typical operation under a variety of
conditions. The Derating curves show the maximum continuous ambient air
temperature and decreasing maximum output current which is accept-
able under increasing forced airfl ow measured in Linear Feet per Minute
(“LFM”). Note that these are AVERAGE measurements. The converter will
accept brief increases in current or reduced airfl ow as long as the average
is not exceeded.
Note that the temperatures are of the ambient airfl ow, not the converter
itself which is obviously running at higher temperature than the outside
air. Also note that very low fl ow rates (below about 25 LFM) are similar to
“natural convection”, that is, not using fan-forced airfl ow.
Murata Power Solutions makes Characterization measurements in a
closed cycle wind tunnel with calibrated airfl ow. We use both thermocou-
ples and an infrared camera system to observe thermal performance.
CAUTION: These graphs are all collected at slightly above Sea Level
altitude. Be sure to reduce the derating for higher density altitude.
C1
C1 = 1µF CERAMIC
C2 = 10µF CERAMIC
LOAD 2-3 INCHES (51-76mm) FROM MODULE
C2 R
LOAD
COPPER STRIP
COPPER STRIP
SCOPE
+OUTPUT
-OUTPUT
Figure 5: Measuring Output Ripple and Noise (PARD)
OKL-T/6-W12 Series
Programmable Output 6-Amp iLGA SMT PoLs
www.murata-ps.com email: sales@murata-ps.com
18 May 2010 MDC_OKL-T/6-W12 Series.A04 Page 6 of 15
Output Current Limiting
Current limiting inception is defi ned as the point at which full power falls
below the rated tolerance. See the Performance/Functional Specifi ca-
tions. Note particularly that the output current may briefl y rise above its
rated value in normal operation as long as the average output power is
not exceeded. This enhances reliability and continued operation of your
application. If the output current is too high, the converter will enter the
short circuit condition.
Output Short Circuit Condition
When a converter is in current-limit mode, the output voltage will drop
as the output current demand increases. If the output voltage drops too
low (approximately 98% of nominal output voltage for most models), the
magnetically coupled voltage used to develop primary side voltages will
also drop, thereby shutting down the PWM controller. Following a time-out
period, the PWM will restart, causing the output voltage to begin ramping
up to its appropriate value. If the short-circuit condition persists, another
shutdown cycle will initiate. This rapid on/off cycling is called “hiccup
mode”. The hiccup cycling reduces the average output current, thereby
preventing excessive internal temperatures and/or component damage. A
short circuit can be tolerated indefi nitely.
The “hiccup” system differs from older latching short circuit systems
because you do not have to power down the converter to make it restart.
The system will automatically restore operation as soon as the short circuit
condition is removed.
Remote On/Off Control
The remote On/Off Control can be ordered with either polarity. Please refer
to the Connection Diagram on page 1 for On/Off connections.
Positive polarity models are enabled when the On/Off pin is left open or
is pulled high to +Vin with respect to –Vin. An internal bias current causes
the open pin to rise to +Vin. Positive-polarity devices are disabled when the
On/Off is grounded or brought to within a low voltage (see Specifi cations)
with respect to –Vin.
Negative polarity devices are on (enabled) when the On/Off is open or
brought to within a low voltage (see Specifi cations) with respect to –Vin.
The device is off (disabled) when the On/Off is pulled high with respect to
–Vin (see specifi cations).
Dynamic control of the On/Off function should be able to sink appropriate
signal current when brought low and withstand appropriate voltage when
brought high. Be aware too that there is a fi nite time in milliseconds (see
Specifi cations) between the time of On/Off Control activation and stable,
regulated output. This time will vary slightly with output load type and cur-
rent and input conditions.
Output Capacitive Load
These converters do not require external capacitance added to achieve
rated specifi cations. Users should only consider adding capacitance to
reduce switching noise and/or to handle spike current load steps. Install
only enough capacitance to achieve noise objectives. Excess external
capacitance may cause regulation problems, degraded transient response
and possible oscillation or instability.
Voltage Range Graph
Please observe the limits below for voltage input and output ranges. These
limits apply at all output currents.
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
Output Voltage (V)
0
2
4
6
8
10
12
14
16
Input Voltage (V)
Upper Limit
Lower Limit
Vin=14V / Vout=1V
Vin=4.5V / Vout=3.63V
Soldering Guidelines
Murata Power Solutions recommends the specifi cations below when installing these
converters. These specifi cations vary depending on the solder type. Exceeding these
specifi cations may cause damage to the product. Your production environment
may differ therefore please thoroughly review these guidelines with your process
engineers.
Recommended Lead-free Solder Refl ow Profi le
High trace = normal upper limit
Low trace - normal lower limit
0
50
100
150
200
250
0 30 60 90 120 150 180 210 240 270 300
Time (sec)
Temperature (°C)
Preheating Zone
240 sec max
Soaking Zone
120 sec max
Reflow Zone
time above 217° C
45-75 sec
Peak Temp.
235-260° C
<1.5° C/sec
Reflow Solder Operations for surface-mount products (SMT)
For Sn/Ag/Cu based solders:
Preheat Temperature Less than 1 ºC. per second
Time over Liquidus 45 to 75 seconds
Maximum Peak Temperature 260 ºC.
Cooling Rate Less than 3 ºC. per second
For Sn/Pb based solders:
Preheat Temperature Less than 1 ºC. per second
Time over Liquidus 60 to 75 seconds
Maximum Peak Temperature 235 ºC.
Cooling Rate Less than 3 ºC. per second
OKL-T/6-W12 Series
Programmable Output 6-Amp iLGA SMT PoLs
www.murata-ps.com email: sales@murata-ps.com
18 May 2010 MDC_OKL-T/6-W12 Series.A04 Page 7 of 15
PERFORMANCE DATA AND OSCILLOGRAMS
Effi ciency vs. Line Voltage and Load Current @ +25˚C. (Vout = 5.0V)
Step Load Transient Response (Vin=12V, Vout=5.0V, Cload=0, Iout=3A to 6A)
Trace 2=Vout, 100 mV/div. Trace 4=Iout, 2A/div.
Maximum Current Temperature Derating at Sea Level (Vin=12V, Vout=5.0V)
Step Load Transient Response (Vin=12V, Vout=5.0V, Cload=0, Iout=6A to 3A)
Trace 2=Vout, 100 mV/div. Trace 4=Iout, 2A/div.
0123456
75
80
85
90
95
100
Load Curre nt (Amps)
Efficiency (%)
VIN = 6.5V
VIN = 12V
VIN = 14V
0
1
2
3
4
5
6
7
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
65 LFM
100 LFM
Output Current (Amps)
Ambient Temperature (ºC)
On/Off Enable Delay (Vin=12V, Vout=5.0V, Iout=6A, Cload=0)
Trace 4=Enable, Trace2=Vout
Output Ripple and Noise (Vin=12V, Vout=5.0V, Iout=6A, Cload=0, ScopeBW=20MHz)
OKL-T/6-W12 Series
Programmable Output 6-Amp iLGA SMT PoLs
www.murata-ps.com email: sales@murata-ps.com
18 May 2010 MDC_OKL-T/6-W12 Series.A04 Page 8 of 15
PERFORMANCE DATA AND OSCILLOGRAMS
Effi ciency vs. Line Voltage and Load Current @ +25˚C. (Vout = 3.3V) Maximum Current Temperature Derating at Sea Level (Vin=12V, Vout=3.3V)
75
80
85
90
95
100
0123456
Load Curre nt (Amps)
Efficiency (%)
V
IN
= 4.5V
V
IN
= 12V
V
IN
= 14V
0
1
2
3
4
5
6
7
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
65 LFM
100 LFM
Output Current (Amps)
Ambient Temperature (ºC)
Step Load Transient Response (Vin=12V, Vout=3.3V, Cload=0, Iout=3A to 6A)
Trace 2=Vout, 100 mV/div. Trace 4=Iout, 2A/div.
Step Load Transient Response (Vin=12V, Vout=3.3V, Cload=0, Iout=6A to 3A)
Trace 2=Vout, 100 mV/div. Trace 4=Iout, 2A/div.
On/Off Enable Delay (Vin=12V, Vout=3.3V, Iout=6A, Cload=0)
Trace 4=Enable, Trace2=Vout
Output Ripple and Noise (Vin=12V, Vout=3.3V, Iout=6A, Cload=0, ScopeBW=20MHz)
OKL-T/6-W12 Series
Programmable Output 6-Amp iLGA SMT PoLs
www.murata-ps.com email: sales@murata-ps.com
18 May 2010 MDC_OKL-T/6-W12 Series.A04 Page 9 of 15
PERFORMANCE DATA AND OSCILLOGRAMS
Effi ciency vs. Line Voltage and Load Current @ +25˚C. (Vout = 2.5V) Maximum Current Temperature Derating at Sea Level (Vin=12V, Vout=2.5V)
70
75
80
85
90
95
100
0123456
Load Curre nt (Amps)
Efficiency (%)
V
IN
= 4.5V
V
IN
= 12V
V
IN
= 14V
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
0
1
2
3
4
5
6
7
Output Current (Amps)
Ambient Temperature (ºC)
65 LFM
100 LFM
Step Load Transient Response (Vin=12V, Vout=2.5V, Cload=0, Iout=3A to 6A)
Trace 2=Vout, 100 mV/div. Trace 4=Iout, 2A/div.
Step Load Transient Response (Vin=12V, Vout=2.5V, Cload=0, Iout=6A to 3A)
Trace 2=Vout, 100 mV/div. Trace 4=Iout, 2A/div.
On/Off Enable Delay (Vin=12V, Vout=2.5V, Iout=6A, Cload=0)
Trace 4=Enable, Trace2=Vout
Output Ripple and Noise (Vin=12V, Vout=2.5V, Iout=6A, Cload=0, ScopeBW=20MHz)
OKL-T/6-W12 Series
Programmable Output 6-Amp iLGA SMT PoLs
www.murata-ps.com email: sales@murata-ps.com
18 May 2010 MDC_OKL-T/6-W12 Series.A04 Page 10 of 15
PERFORMANCE DATA AND OSCILLOGRAMS
Effi ciency vs. Line Voltage and Load Current @ +25˚C. (Vout = 1.8V) Maximum Current Temperature Derating at Sea Level (Vin=12V, Vout=1.8V)
70
75
80
85
90
95
100
0123456
Load Curre nt (Amps)
Efficiency (%)
V
IN
= 4.5V
V
IN
= 12V
V
IN
= 14V
0
1
2
3
4
5
6
7
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
Output Current (Amps)
Ambient Temperature (ºC)
65 LFM
100 LFM
Step Load Transient Response (Vin=12V, Vout=1.8V, Cload=0, Iout=3A to 6A)
Trace 2=Vout, 100 mV/div. Trace 4=Iout, 2A/div.
Step Load Transient Response (Vin=12V, Vout=1.8V, Cload=0, Iout=6A to 3A)
Trace 2=Vout, 100 mV/div. Trace 4=Iout, 2A/div.
On/Off Enable Delay (Vin=12V, Vout=1.8V, Iout=6A, Cload=0)
Trace 4=Enable, Trace2=Vout
Output Ripple and Noise (Vin=12V, Vout=1.8V, Iout=6A, Cload=0, ScopeBW=20MHz)
OKL-T/6-W12 Series
Programmable Output 6-Amp iLGA SMT PoLs
www.murata-ps.com email: sales@murata-ps.com
18 May 2010 MDC_OKL-T/6-W12 Series.A04 Page 11 of 15
PERFORMANCE DATA AND OSCILLOGRAMS
Effi ciency vs. Line Voltage and Load Current @ +25˚C. (Vout = 1.2V) Maximum Current Temperature Derating at Sea Level (Vin=12V, Vout=1.2V)
65
70
75
80
85
90
95
100
0123456
Load Curre nt (Amps)
Efficiency (%)
V
IN
= 4.5V
V
IN
= 12V
V
IN
= 14V
0
1
2
3
4
5
6
7
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
Output Current (Amps)
Ambient Temperature (ºC)
65 LFM
100 LFM
Step Load Transient Response (Vin=12V, Vout=1.2V, Cload=0, Iout=3A to 6A)
Trace 2=Vout, 100 mV/div. Trace 4=Iout, 2A/div.
Step Load Transient Response (Vin=12V, Vout=1.2V, Cload=0, Iout=6A to 3A)
Trace 2=Vout, 100 mV/div. Trace 4=Iout, 2A/div.
On/Off Enable Delay (Vin=12V, Vout=1.2V, Iout=6A, Cload=0)
Trace 4=Enable, Trace2=Vout
Output Ripple and Noise (Vin=12V, Vout=1.2V, Iout=6A, Cload=0, ScopeBW=20MHz)
OKL-T/6-W12 Series
Programmable Output 6-Amp iLGA SMT PoLs
www.murata-ps.com email: sales@murata-ps.com
18 May 2010 MDC_OKL-T/6-W12 Series.A04 Page 12 of 15
PERFORMANCE DATA AND OSCILLOGRAMS
Effi ciency vs. Line Voltage and Load Current @ +25˚C. (Vout = 1.0V) Maximum Current Temperature Derating at Sea Level (Vin=12V, Vout=1.0V)
60
65
70
75
80
85
90
95
100
0123456
Load Curre nt (Amps)
Efficiency (%)
V
IN
= 4.5V
V
IN
= 12V
V
IN
= 14V
0
1
2
3
4
5
6
7
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
Output Current (Amps)
Ambient Temperature (ºC)
65 LFM
100 LFM
Step Load Transient Response (Vin=12V, Vout=1.0V, Cload=0, Iout=3A to 6A)
Trace 2=Vout, 100 mV/div. Trace 4=Iout, 2A/div.
Step Load Transient Response (Vin=12V, Vout=1.0V, Cload=0, Iout=6A to 3A)
Trace 2=Vout, 100 mV/div. Trace 4=Iout, 2A/div.
On/Off Enable Delay (Vin=12V, Vout=1.0V, Iout=6A, Cload=0)
Trace 4=Enable, Trace2=Vout
Output Ripple and Noise (Vin=12V, Vout=1.0V, Iout=6A, Cload=0, ScopeBW=20MHz)
OKL-T/6-W12 Series
Programmable Output 6-Amp iLGA SMT PoLs
www.murata-ps.com email: sales@murata-ps.com
18 May 2010 MDC_OKL-T/6-W12 Series.A04 Page 13 of 15
PERFORMANCE DATA AND OSCILLOGRAMS
Effi ciency vs. Line Voltage and Load Current @ +25˚C. (Vout = .591V) Maximum Current Temperature Derating at Sea Level (Vin=12V, Vout=.591V)
50
55
60
65
70
75
80
85
90
95
100
0123456
Load Curre nt (Amps)
Efficiency (%)
V
IN
= 4.5V
V
IN
= 12V
V
IN
= 14V
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90
4
4.25
4.5
4.75
5
5.25
5.5
5.75
6
6.25
Output Current (Amps)
Ambient Temperature (ºC)
65 LFM
Step Load Transient Response (Vin=12V, Vout=.591V, Cload=0, Iout=3A to 6A)
Trace 2=Vout, 100 mV/div. Trace 4=Iout, 2A/div.
Step Load Transient Response (Vin=12V, Vout=.591V, Cload=0, Iout=6A to 3A)
Trace 2=Vout, 100 mV/div. Trace 4=Iout, 2A/div.
On/Off Enable Delay (Vin=12V, Vout=.591V, Iout=6A, Cload=0)
Trace 4=Enable, Trace2=Vout
Output Ripple and Noise (Vin=12V, Vout=.591V, Iout=6A, Cload=0, ScopeBW=20MHz)
OKL-T/6-W12 Series
Programmable Output 6-Amp iLGA SMT PoLs
www.murata-ps.com email: sales@murata-ps.com
18 May 2010 MDC_OKL-T/6-W12 Series.A04 Page 14 of 15
L00103
YMDX Rev.
L00103
YMDX Rev.
L00103
YMDX Rev.
16.00±0.1
12.60±0.1
A-A’ SECTION
A’
B’
(7.0º)
12.60±0.1
B-B’ SECTION
(7.0º)
4.00±0.1
11.50±0.1 1.75±0.1
2.00±0.1 Round
Sprocket
Holes
Vacuum Pickup
Point in Center
7.40±0.1
0.40±0.05
ø1.50
+0.1
-0
24.00
+0.3
-0.1
AB
Pulling direction
Notes
1) The radius (R) is 0.3mm max.
2) Cumulative tolerance of 10 pitches of the sprocket hole is ±0.2mm.
Tape Detail
Reel Detail
A
Reel diameter 330.2
Inner diameter 101.6
End of modules
All dimensions are in millimeters.
Start of
modules
in pockets
Start of
cover tape
Start of
pocket tape
Hub diameter 13.00
C
B
TAPE AND REEL INFORMATION
Reel Information (400 units per reel)
Key Description Length (mm)
ATape trailer (no modules) 800 ±40
BPocket tape length before modules 200 min.
CCover tape length before pocket tape 240 ±40
OKL-T/6-W12 Series
Programmable Output 6-Amp iLGA SMT PoLs
www.murata-ps.com email: sales@murata-ps.com
18 May 2010 MDC_OKL-T/6-W12 Series.A04 Page 15 of 15
