Description

The SC2434, a tri-phase, current mode controller is designed to work with Semtech smart synchronous drivers, such as the SC1205, SC1206, and SC1207 to provide the DC/DC converter solution for the most demanding Microprocessor applications.

Features

◆ 12V input

◆ Input sensing current mode control

◆ Selectable 2 or 3 phase operation

◆ Precision, pulse by pulse phase current matching

◆ Active drooping allows for best transient response

◆ Programmable internal oscillator to 1.5 MHz

◆ Programmable DAC step size/offset allows compliance with VRM9.0 and VRM9.2

◆ VID 11111 Inhibit (No CPU)

◆ Externally programmable soft-start

◆ 0 minimum duty cycle improves transient response

◆ Cycle by cycle current limiting plus hiccup

◆ Power good signal

Applications

◆ Intel Pentium-4 microprocessors

◆ High performance desktop systems