SC4609 Datasheet (Semtech Corporation) - High Efficiency Synchronous Buck

SC4609, High Efficiency Synchronous Buck

The SC4609 is a voltage mode step down (buck) regulator controller that provides accurate high efficiency power conversion from an input supply range of 2.7V to 5.5V.

A high level of integration reduces external component count, and makes it suitable for low voltage applications where cost, size and

SC4609 Features

* Asynchronous start up Programmable switching frequency up to 1MHz BiCMOS voltage mode PWM controller 2.7V to 5.5V input voltage range Output voltage as low as 0.5V +/-1% reference accuracy Sleep mode (Icc = 10µA typ) Adjustable lossless short circuit current limiting Combination pulse by pulse & hic