MB3821 Datasheet (Fujitsu Media Devices)

MB3821, 2-ch DC/DC Converter

The MB3821 is a pulse width modulation (PWM) type 2-channel DC/DC converter IC with synchronous rectification designed for low voltage, high efficiency operation in high precision and high frequency applications, ideal for down conversion.

A normal/low-power mode selection is provided, ideal for an

MB3821 Features

* Synchronous rectification

* High efficiency : 93 % (normal power mode, VIN = 6 V, load 1 A) : 84 % (low power mode, VIN = 6 V, load 20 mA)

* Built-in power mode selector circuit Reference voltage accuracy : 2.5V ± 2 % Built-in error a