DS04-27226-1E

FUJITSU SEMICONDUCTOR

DATA SHEET

ASSP For Power Management Applications

2-channel DC/DC Converter IC

with Synchronous Rectifier

MB3882

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s DESCRIPTION

The MB3882 is a 2-channel DC/DC converter IC using pulse width modulation (PWM) and synchronous rectifi-

cation, designed for down conversion applications.

This device is a power supply with high output drive capacity. Synchronous rectification also provides for high

efficiency.

In addition, a 5 V regulator is built in to reduce the number of system components. The result is an ideal built-in

power supply for driving products with high speed CPU’s such as home TV game devices and notebook PC’s.

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s FEATURES

• Synchronous rectification for high efficiency

• Supply voltage range : 5.5 V to 18 V

• High-precision reference voltage : 2.5 V

± 1%

• Error Amp. threshold voltage : 1.25 V

± 1% (0 °C to 85 °C)

• Oscillator frequency range : 10 kHz to 500 kHz

• Built-in soft start circuit with error Amp. input control

• Totem pole type output for N-ch MOSFET

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s PACKAGE

24-pin Plastic SSOP

(FPT-24P-M03)