Description

The SC4605 is a voltage mode step down (buck) regulator controller that provides accurate high efficiency power conversion from a input supply range of 2.8V to 5.5V. A high level of integration reduces external component count, and makes it suitable for low voltage applications where cost, size and efficiency are critical.

Features

◆ BICMOS voltage mode PWM controller

◆ 2.8V to 5.5V Input voltage range

◆ Output voltages as low as 0.8V

◆ +/-1 Reference accuracy

◆ Sleep mode (Icc = 10µA typ)

◆ Lossless adjustable short circuit current limiting

◆ Combination pulse by pulse & hiccup mode current limit

◆ High efficiency synchronous switching

◆ 0 to 97 Duty cycle range

◆ 1A Peak current driver

◆ 10-Pin MSOP package

Applications

◆ Distributed power architecture

◆ Servers/workstations

◆ Local microprocessor core power supplies

◆ DSP and I/O power supplies

◆ Battery powered applications

◆ Telecommunications equipment

◆ Data processing applications