Datasheet
FUNCTIONAL SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS Conditions (1) Minimum Typical/Nominal Maximum Units
Input Voltage, Continuous Full power operation 0 6 Vdc
Output Power 0 43.56 W
Output Current
Current-limited, no damage,
short-circuit protected
012A
On/Off Control 5.5 Vdc
Storage Temperature Range Vin = Zero (no power) -55 125 ˚C
Absolute maximums are stress ratings. Exposure of devices to greater than 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 or recommended.
INPUT
Operating voltage range (7) See output voltage vs input voltage 2.4 5 5.5 Vdc
Recommended External Fuse Fast blow 28 A
Turn On/Start-up threshold Rising input voltage 1.95 2.05 2.15 Vdc
Undervoltage Shutdown 1.8 1.92 2.07
Internal Filter Type C-TYPE
Input current
Full Load Conditions Vin = nominal (3.3Vo set) 8.43 8.69 A
Low Line Vin @ min, 3.3 Vout 9.33 9.71 A
Inrush Transient TBD A
2
-Sec.
Short Circuit Input Current TBD mA
No Load Input Current 3.3Vout, Iout @ 0 45 60 mA
No Load Input Current 1.2V, Iout @ 0 35 50
Shut-Down Mode Input Current 1mA
Refl ected (back) ripple current (2) Measured at input with specifi ed fi lter TBD mA, pk-pk
GENERAL and SAFETY
EFFICIENCY (12Vin @ 12A load current)
@ Vin nom, 3.63Vout 92.5 94.7
%
@ Vin nom, 3.3Vout 91.5 94
@ Vin min=4.5Vin, 3.3Vout 92 94.3
@ Vin nom, 2.5Vout 88.5 91.6
@Vin nom, 1.8Vout 84.5 89
@Vin nom, 1.2Vout 81.5 85.4
Safety
Certifi ed to UL-60950-1, CSA-C22.2
No.60950-1, IEC/60950-1, 2nd edition
(pending)
Yes
Calculated MTBF (4a)
Per Telcordia SR332, issue 1 class 3, ground
fi xed, Tambient=+25˚C
10,488,000 Hours
Calculated MTBF (4b) Per Mil-HDBK-217N2 Method 6,071,542 Hours
DYNAMIC CHARACTERISTICS
Fixed Switching Frequency 600 KHz
Startup Time Power On to Vout regulated 6 mS
Startup Time Remote ON to to Vout regulated 6 mS
Dynamic Load Response
50-100-50% load step, settling time to within
±2% of Vout di/dt =1 A/µSec
50 µSec
Dynamic Load Peak Deviation same as above ±300 mV
FEATURES and OPTIONS
Remote On/Off Control (5)
“N” suffi x
Negative Logic, ON state Pin open=ON -0.2 Vin-1.7 V
Negative Logic, OFF state Vin-0.7 +Vin-max V
Control Current open collector/drain 3 mA
“P” suffi x
Positive Logic, ON state Pin open=ON +Vin-0.7V Vin-max V
Positive Logic, OFF state -0.3 0.8 V
Control Current open collector/drain 3 mA
Tracking/Sequencing(optional)
Slew Rate 2 V/mS
Tracking Accuracy Rising input (0.5V/ms) ±150 mV
Tracking Accuracy Falling input(0.5V/ms) ±100 mV
Power Good Option
PGOOD, Open Drain Confi guration, Sinking:
Vout window for PGOOD: True -10% 10% Vset
Vout window for PGOOD: False 0.05 Vdc
Remote Sense 500 mV
OKL2-T/12-W5 Series
Programmable Output 12-Amp iLGA SMT PoL
DC-DC Converter Series
MDC_OKL2-T/12-W5.B02 Page 3 of 17
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