FUJITSU SEMICONDUCTOR DATA SHEET
DS04-27212-2E
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 to 15 V Low current consumption: Typically 5.
5 mA in operation, 1 µA or less in stand-by High speed operation is possible: Maximum 1 MHz The error amplifier gain is set ins...