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