MB3800(985)FUJITSU SEMICONDUCTOR DATA SHEET DS04-27212-3E ASSP For Power Supply Applications BIPOLAR Switching Regulator Controller (Low Voltage) MB3800 s DESCRIPTION The MB3800 is a single-channel switching regulator control IC for low voltage applications incorporating a soft start function and short circuit detection function. The device has a low minimum operating voltage of 1.8 V and is ideal for the power supply of battery-operated electronic equipment. s FEATURES Wide supply voltage operating range: 1.8 V to 15 V Low current consumption: Typically 5.5 mA in operation, 1 A or less in stand-by High speed operation is possible: Maximum 1 MHz The error amplifier gain is set inside the IC, so peripheral components are minimized. Incorporates a soft start circuit. Incorporates a timer-……