MSK5042

MIL-PRF-38534 CERTIFIED M.S.KENNEDY CORP. 4707 Dey Road Liverpool, N.Y. 13088 HIGH EFFICIENCY, 4 AMP ADJUSTABLE SURFACE MOUNT SWITCHING REGULATOR 5042 (315) 701-6751 FEATURES: Up To 95% Efficiency For 5V Operation 4 Amp Output Current 4.5V to 30V Input Range User Adjustable Output Voltage from 1.2V to 5.5V 300KHz Switching Frequency @ 1 Amp User Programmable Soft-Start Quiescent Current < 2.5mA User Programmable Current Limit Available with Gull Wing Leads Contact MSK for MIL-PRF-38534 Qualification Status DESCRIPTION: The MSK 5042 is a high efficiency, 4 amp, surface mount switching regulator. Output voltage is user adjustable through the use of two external resistors or one external potentiometer. Output voltages from 1.2 volts to 5.5 volts are possible. The operating frequency of the MSK 5042 is 300KHz and is internally set. An external "soft start" capacitor allows the user to control how quickly the output comes up to regulation voltage after the application of an input. An extremely low quiescent current of typically less than 2.5mA and nearly 95% operating efficiency at 5 volts out, keep the total internal power dissipation of the MSK 5042 down to an absolute minimum. EQUIVALENT SCHEMATIC www.DataSheet4U.com TYPICAL APPLICATIONS Step-down Switching Regulator Microprocessor Power Source High Efficiency Low Voltage Subsystem Power Supply 1 2 3 4 5 6 7 1 PIN-OUT INFORMATION Case Sense High Sense Low N/C RF High Amp In N/C 34-44 23-33 11-22 10 9 8 Vout Ground Vin E...