Datasheet

DS_D12S05020_10282008
2
TECHNICAL SPECIFICATIONS
(Ambient Temperature=25°C, minimum airflow=200LFM, nominal V
in
=12Vdc unless otherwise specified.)
PARAMETER NOTES and CONDITIONS D12S05020
Min. Typ. Max. Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage -0.3 13.2 V
Operating Temperature Refer to Figure 25 for the measuring point 0 85 °C
Storage Temperature -40 125 °C
INPUT CHARACTERISTICS
Operating Input Voltage 4.5 13.2 V
Input Under-Voltage Lockout
Turn-On Voltage Threshold For 5V output the input minimum is 6.5V 4.5 V
Turn-Off Voltage Threshold 4.0 V
Maximum Input Current Vin=6.5V, Vo=5.0V, Io=20A 16.5 A
Vin=5V, Vo=3.3V, Io=20A 14.7 A
No-Load Input Current Vin=12V, Vo=5.0V, Io=0A 60 mA
Off Converter Input Current Remote OFF 10 mA
OUTPUT CHARACTERISTICS
Output Voltage Adjustment Range 0.59 5.0 V
Output Voltage Set Point With a 0.1% trim resistor -2 +2 %Vo
Total output range Over load, line, temperature regulation and set point -3.0 +3.0 %Vo
Output Voltage Ripple and Noise OSCON 680uF x2, 5Hz to 20MHz bandwidth
Peak-to-Peak Full Load, 12Vin, 5Vo 10 20 mVpk-pk
Output Current Range 0 20 A
Output Voltage Over-shoot at Power-On OSCON 680uF x2, 0.5% Vo
Output Voltage Under-shoot at Power-Off Vin=12V, Turn OFF, OSCON 680uF x2, 100 mV
Output DC Current-Limit Inception Hiccup mode 30 A
Over Voltage Protection Hiccup mode 115 %
Under Voltage Protection Hiccup mode 115 %
DYNAMIC CHARACTERISTICS
Output Dynamic Load Response Output step load 10A to 20A, 10A/usec
Vo=5.0V, 1360µF output capacitance 150 mVpk
Vo=3.3V, 1360µF output capacitance 99 mVpk
Vo=2.5V, 1360µF output capacitance 75 mVpk
Vo=1.5V, 1360µF output capacitance 45 mVpk
Vo=1.2V, 3280µF output capacitance 26 mVpk
Vo=0.9V, 3280µF output capacitance 22 mVpk
Vo=0.59V, 3280µF output capacitance 22 mVpk
Turn-On Transient
Rise Time From 10% to 90% of Vo 3 5 ms
Turn on Delay (Remote on/off) Vin=12V, Io=min-max. (With 10% of Vo) 5 ms
Minimum Output Capacitance 1300 5000 µF
EFFICIENCY
Vo=0.59V Vin=12V, Io=20A 76.8 %
Vo=0.9V Vin=12V, Io=20A 82.1 %
Vo=1.1V Vin=12V, Io=20A 83.8 %
Vo=1.2V Vin=12V, Io=20A 85.1 %
Vo=1.5V Vin=12V, Io=20A 86.6 %
Vo=2.5V Vin=12V, Io=20A 89.7 %
Vo=3.3V Vin=12V, Io=20A 90.4 %
Vo=5.0V Vin=12V, Io=20A 93.4 %
FEATURE CHARACTERISTICS
Switching Frequency Fixed 600 KHz
ON/OFF Control Positive logic (internally pulled high)
Logic High Module On (or leave the pin open) 1.2 V
Logic Low Module Off 0.8 V
Power Good Delay All conditions (within 90% of Vo) 6 ms
Power Good Signal Vo is outside +/-10% of Vo, set 0 0.4 V
Vo is Within +/-10% of Vo,set 5.0 V
GENERAL SPECIFICATIONS
Calculated MTBF
25℃, 300LFM, 80% load
6.33 Mhours
Weight 8.8 grams