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