SC4601 Datasheet - Semtech Corporation

SC4601 Step Down Controller

The SC4601 is a voltage mode step down (buck) regulator controller that provides accurate high efficiency power conversion from input supply range 2.75V to 5.5V. A high level of integration reduces external component count and makes it suitable for low voltage applications where cost, size and effic.

SC4601 Features

* Programmable switching frequency up to 600KHz BICMOS voltage mode PWM controller 2.75V to 5.5V Input voltage range Output voltage as low as 0.8V +/-1% Reference accuracy Sleep mode (Icc = 10µA typ) Lossless adjustable overcurrent protection Combination pulse by pulse & hiccup mode current limit High

SC4601_SemtechCorporation.pdf