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Preliminary DS_NE12S20A_07272007
2
TECHNICAL SPECIFICATIONS
(Ambient Temperature=25°C, minimum airflow=200LFM, nominal V
in
=12Vdc unless otherwise specified.)
PARAMETER NOTES and CONDITIONS NE12S0A0V/H20
Min. Typ. Max. Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage operation 4.5 13.8 Vdc
Operating Temperature (Vertical) Refer to Fig.25 for the measuring point 0 130 °C
Operating Temperature (Horizontal) Refer to Fig.25 for the measuring point 0 TBD °C
Storage Temperature -55 125 °C
INPUT CHARACTERISTICS
Operating Input Voltage 4.5 13.8 V
Input Under-Voltage Lockout
Turn-On Voltage Threshold 4.3 V
Turn-Off Voltage Threshold 3.3 V
Lockout Hysteresis Voltage 1.0 V
Maximum Input Current 12Vin, 5Vo, operating, full load 8.9 A
No-Load Input Current Vin=12V, Vout=5V 150 mA
Off Converter Input Current Remote OFF 10 mA
Input Reflected-Ripple Current P-P thru 2uH inductor 5Hz to 20MHz 30 mA
Input Ripple Rejection 120Hz 60 dB
OUTPUT CHARACTERISTICS
Output Voltage Adjustment Range 0.59 5.1 V
Output Voltage Set Point With a 0.1% trim resistor -1 +1 %Vo
Output Voltage Regulation
Over Load Io=Io_min to Io_max -0.5 +0.5 %Vo
Over Line Vin=Vin_min to Vin_max -0.2 +0.2 %Vo
Total output range Over load, line, temperature regulation and set point -2.0 +2.0 %Vo
Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth
Peak-to-Peak Full Load, 10uF Tan cap, 12Vin, 5Vo 20 mV
RMS Full Load, 10uF Tan cap, 12Vin, 5Vo 5 mV
Output Current Range 0 20 A
Output Voltage Under-shoot at Power-Off Vin=12V, Turn OFF 100 mV
Output short-circuit current, RMS value Continuous 3.6 A
Output DC Current-Limit Inception Hiccup mode 110 200 %Iomax
DYNAMIC CHARACTERISTICS
Output Dynamic Load Response 12Vin, 2.5Vout, 10µF ceramic cap
Positive Step Change in Output Current 75~100% load , 5A/uS 200 mV
Negative Step Change in Output Current 100~75% load , 5A/uS 200 mV
Settling Time Settling to be within regulation band (to 10% Vo deviation) 100 µs
Turn-On Transient
Start-Up Time, from On/Off Control From Enable high to 90% of Vo 2 3 ms
Start-Up Time, from input power From Vin=12V to 90% of Vo 2 3 ms
Minimum Output Capacitance 0 µF
5.0Vo,Maximum Output Capacitance
Turn on overshoot <1% vo ,ESR≥1m
2000 µF
EFFICIENCY
Vo=0.59V Vin=12V, Io=20A 75 %
Vo=0.9V Vin=12V, Io=20A 80.5 %
Vo=2.5V Vin=12V, Io=20A 91 %
Vo=5.0V Vin=12V, Io=20A 94 %
SINK EFFICIENCY
Vo=5.0V Vin=12V, Io=20A 92 %
FEATURE CHARACTERISTICS
Switching Frequency Fixed 500 KHz
ON/OFF Control Positive logic (internally pulled high)
Logic High Module On (or leave the pin open) 0.8 5.0 V
Logic Low Module Off 0 0.3 V
GENERAL SPECIFICATIONS
Calculated MTBF
25℃, 300LFM, 80% load
TBD Mhours
Weight 8.8 grams