Description
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 efficiency are critical.

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 efficiency synchronous switching
◆ Up to 100% Duty cycle range
◆ Synchronization to external clock
◆ 10-Pin MSOP surface mount package. Available in Lead-free package, fully WEEE and RoHS compliant

Applications
◆ Distributed power architecture
◆ Servers/workstations
◆ Local microprocessor core power supplies
◆ DSP and I/O power supplies
◆ Battery powered applications
◆ Telecommunication equipment
◆ Data processing applications