PKQ75 (50-75 WATT WIDE INPUT DC/DC CONVERTER SINGLE OUTPUT) (PDF) Features 50-75W Isolated Output Efficiency to 90% 300KHz Switching Frequency 2:1 Input Range Regulated Outputs Continuous Short Circuit Protection Five Sided Metal Case Industry Standard Quarter-Brick Package Input Specifications Input Voltage Range 48V 36-75V 48Vin power up 34V 48Vin power down 32.5V Positive Logic remote ON/OFF Input Filter Pi Type Output Specifications Voltage Accuracy +/- 1% max. Transient Response:75-100% Step Load Change Error Band ±5% Vout Recovery Time <500u sec. External Trim Adj. Range +/- 10% Ripple & Noise, 20MHz BW, 3.3V & 5V 40V RMS., max. 100mV pk-pk,max. Temperature Coefficient +/- 0.03%/ºC Short Circuit Protection Continuous Line Regulation1 +/- 0.2% max. Load Regulation2 +/- 0.2% max. Over Voltage Protection trip Range, % Vo nom. 115-140% Current Limit 110%-140% Nominal Output General Specifications Isolation Voltage Input/Output---------1500VDC min. Input/Case---------1500VDC min Output/Case---------1500VDC min Isolation Resistance 10o ohm min. Switching Frequency 300KHz, Typ. Operating case Temperature -40ºC to 100ºC Storage Temperature -40ºC to 105ºC Thermal Shutdown Range, Case Temp. 100ºC typ. Dimensions 1.45 x 2.28 x 0.50 inches 36.8 x 57.9 x 12.7 mm Case Materials Standard Aluminum Baseplate with Plastic Case PKQ75 Series Specifications Model Number Input Voltage Output Voltage Output Current Input Current Efficiency Case No Load Full Load PKQ75-48S18 36-75 VDC 1.8 VDC 0.5-25A 50mA 1116mA 84% QB PKQ75-48S25 36-75 VDC 2.5 VDC 0.5-25A 50mA 1514mA 86% QB PKQ75-48S33 36-75 VDC 3.3 VDC 0.5-20A 50mA 1563mA 88% QB PKQ75-48S05 36-75 VDC 5 VDC 0.5-15A 80mA 1736mA 90% QB

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