The MSK5042 is a high efficiency, 4 A, adjustable surface mount switching regulator. This device delivers an output voltage ranging from 1.2 V to 5.5 V. Its output voltage is user adjustable through the use of two external resistors or one external potentiometer. The operating frequency of the MSK5042 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 MSK5042 down to an absolute minimum.
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 at 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
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