MB3800_06 Datasheet, PDF (1/20 Pages) Fujitsu Component Limited. – Switching Regulator Controller (Low Voltage)

FUJITSU SEMICONDUCTOR
DATA SHEET
DS04-27212-4E
ASSP For Power Supply Applications
BIPOLAR
Switching Regulator Controller
(Low Voltage)
MB3800
■ 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.
■ FEATURES
• Wide supply voltage operating range: 1.8 V 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 inside the IC, so peripheral components are minimized.
• Incorporates a soft start circuit.
• Incorporates a timer-latch type short circuit detection circuit (SCP).
• Totem-pole type output with adjustable on/off current (for NPN transistors)
• Incorporates a stand-by function.
• Three types of packages (SOP-8 : 2 types, SSOP-8 : 1 type)
■ Application
• LCD monitor/panel
• Power supply module
• Portable apparatus etc.
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