CPU 5−Bit Synchronous Buck Controller

The CS5159 is a 5−bit synchronous dual N−Channel buck controller. It is designed to provide unprecedented transient response for today’s demanding high−density, high−speed logic. The regulator operates using a proprietary control method, which allows a 100 ns response time to load transients. The CS5159 is designed to operate over a 4.25−16 V range (VCC) using 12 V to power the IC and 5.0 V or 12V as the main supply for conversion.

Features

• Dual N−Channel Design

• Excess of 1.0 MHz Operation

• 100 ns Transient Response

• 5−Bit DAC

• Backward Compatible with Adjustable CS5157

• 30 ns Gate Rise/Fall Times

• 1.0 DAC Accuracy

• 5.0 V & 12 V Operation

• Remote Sense

• Programmable Soft Start

• Lossless Short Circuit Protection

• VCC Monitor

• 25 ns FET Nonoverlap Time

• V2™ Control Topology

• Current Sharing

• Overvoltage Protection