FEATURES High Efficiency: 94.0% 12Vin, 5V/20A out Size: Vertical: 30.5x15.5x12.0mm (1.20x0.61x0.47) Horizontal: 30.5x15.5x12.9mm (1.20x0.61x0.51) Wide input range: 4.5V~13.8V Output voltage programmable from 0.59Vdc to 5.1Vdc via external resistors Voltage and resistor-based trim No minimum load required Fixed frequency operation Input UVLO, output OCP Remote ON/OFF (Positive) ISO 9001, TL 9000, ISO 14001, QS9000, OHSAS18001 certified manufacturing facility UL/cUL 60950-1 (US & Canada) Recognized Delphi NE Series Non-Isolated Point of Load DC/DC Modules: 4.5V~13.8Vin, 0.59V~5.1Vout, 20A OPTIONS The Delphi NE 20A Series, 4.5 to 13.8V wide input, wide trim single Vertical or horizontal versions output, non-isolated point of load DC/DC converters are the latest offering from a world leader in power systems technology and manufacturing Delta Electronics, Inc. The ND/NE product family is the second generation, non-isolated point-of-load DC/DC power modules for the datacom applications which cut the module size by almost 50% in most of the cases compared to the first generation NC series POL modules. The product family here provides 20A of output current in a vertically or horizontally mounted through-hole package and the output can be resistor trimmed from 0.59Vdc to 5.1Vdc. It APPLICATIONS provides a very cost effective, high efficiency, and high density point DataCom of load solution. With creative design technology and optimization of Distributed power architectures component placement, these converters possess outstanding Servers and workstations electrical and thermal performance, as well as extremely high LAN/WAN applications reliability under highly stressful operating conditions. Data processing applications DATASHEET DS NE12S20A 08042011 TECHNICAL SPECIFICATIONS (Ambient Temperature=25C, minimum airflow=200LFM, nominal V =12Vdc unless otherwise specified.) in 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 -40 130 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 Over temperature Ta=0C to 70C -0.3 +0.3 %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, 10F 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 s 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 F 5.0Vo,Maximum Output Capacitance Turn on overshoot <1% vo ,ESR 1m 2000 F 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 25, 300LFM, 80% load Calculated MTBF 9.8 Mhours Weight 8.8 grams DS NE12S20A 08042011 2