Datasheet
DS_D12S300-1_12282009
2
TECHNICAL SPECIFICATIONS
(Ambient Temperature=25°C, minimum airflow=100LFM, nominal V
in
=12Vdc unless otherwise specified.)
PARAMETER NOTES and CONDITIONS D12S300-1
Min. Typ. Max. Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage Continuous -0.3 13.8 Vdc
Operating Temperature Refer to Fig.32 for the measuring point 0 70 °C
Storage Temperature -55 125 °C
INPUT CHARACTERISTICS
Operating Input Voltage 4.5 13.8 Vdc
Input Under-Voltage Lockout
Turn-On Voltage Threshold 4.38 Vdc
Turn-Off Voltage Threshold 3.88 Vdc
Lockout Hysteresis Voltage 0.4 V
Maximum Input Current Vin=12V, Vout=5V, Io=60A 28 A
No-Load Input Current Vin=12V, Vout=5V, Io=0A 530 600 mA
Off Converter Input Current Remote OFF 24 30 mA
Input Reflected-Ripple Current P-P thru 2uH inductor 5Hz to 20MHz 30 mA
Input Voltage Ripple Rejection 120Hz 50 dB
Output Short-Circuit Input Current Vin=12V, Vout=5V 160 mA
OUTPUT CHARACTERISTICS
Output Voltage Adjustment Range 0.6 5.0 V
Output Voltage Set Point With a 0.1% trim resistor -0.8 0.1 +0.8 %Vo
Output Voltage Regulation
Over Load Io=Io_min to Io_max -0.5 0.1 +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 -1.5 +1.5 %Vo
Output Voltage Ripple and Noise 5Hz to 20MHz bandwidth
Peak-to-Peak Full Load, 20uF Tan cap&1uF ceramic, total input & output range 20 50 mV
RMS Full Load, 10uF Tan cap&1uF ceramic, total input & output range 8 15 mV
Output Current Range 0 60 A
Output Voltage Under-shoot at Power-Off Vin=12V, Turn OFF 100 mV
Output short-circuit current, RMS value 12Vin, 5Vout 10 A
Output DC Current-Limit Inception Hiccup mode 110 180 %
Over Voltage Protection Hiccup mode 120 125 130 %
DYNAMIC CHARACTERISTICS
Output Dynamic Load Response 12Vin, 1uF ceramic, 10uF Tan cap
Transient Response Output step load=25% load for all range Slew rate=10A/µs 0.6 Vo 110 160 mV pk
Transient Response Output step load=25% load for all range Slew rate=10A/µs 0.9 Vo 120 170 mV pk
Transient Response Output step load=25% load for all range Slew rate=10A/µs 1.2 Vo 120 170 mV pk
Transient Response Output step load=25% load for all range Slew rate=10A/µs 1.5 Vo 120 170 mV pk
Transient Response Output step load=25% load for all range Slew rate=10A/µs 1.8 Vo 100 150 mV pk
Transient Response Output step load=25% load for all range Slew rate=10A/µs 2.5Vo 100 150 mV pk
Transient Response Output step load=25% load for all range Slew rate=10A/µs 3.3 Vo 100 150 mV pk
Transient Response Output step load=25% load for all range Slew rate=10A/µs 5.0 Vo 100 150 mV pk
Settling Time 20 60 µs
Turn-On Transient
Rise Time From 10% to 90% of Vo 1 2 ms
Turn-on Delay (Power) Vin=12V, Io=min-max. (within 10% of Vo) 4 10 ms
Turn-on Delay (Remote on/off) ) Vin=12V, Io=min-max. (within 10% of Vo) 0.4 2 ms
Turn on & turn off Transient (overshoot) 0.5% Vo
Minimum Output Capacitance 0 5000 µF
EFFICIENCY
Vo=0.6V Vin=12V, Io=60A 76 78 %
Vo=0.9V Vin=12V, Io=60A 81 83 %
Vo=1.2V Vin=12V, Io=60A 84 86.5 %
Vo=1.5V Vin=12V, Io=60A 86 88.5 %
Vo=1.8V Vin=12V, Io=60A 88 90.0 %
Vo=2.5V Vin=12V, Io=60A 90 92.1 %
Vo=3.3V Vin=12V, Io=60A 91 93.4 %
Vo=5.0V Vin=12V, Io=60A 92 94.5 %
SINK EFFICIENCY
Vo=5.0V
Vin=12V, Io=60A
93 %
FEATURE CHARACTERISTICS
Switching Frequency Fixed 500 KHz
ON/OFF Control Positive logic (internally pulled high)
Logic High Module On (or leave the pin open) 1.5 4.1 V
Logic Low Module Off -0.3 1.4 V
Remote Sense Range 0.5 V
Power Good Vo is out off +/-10% Vo 0 0.4 V
Vo is within +/-10% Vo 4.0 5.1 V
Output to Power Good Delay Time 0.1 2 ms
GENERAL SPECIFICATIONS
Calculated MTBF
25℃, 300LFM, 80% load
TBD Mhours
Weight 26.5 grams
Over-Temperature Shutdown Refer to Figure 32 for the measuring point 115 °C