CPU 4−Bit Nonsynchronous Buck Controller

The CS5151 is a 4−bit nonsynchronous 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 CS5151 is designed to operate over a 4.25−16 V range (VCC) using 12 V to power the IC and 5.0 V as the main supply for conversion.

Features

• N−Channel Design

• Excess of 1.0 MHz Operation

• 100 ns Transient Response

• 4−Bit DAC

• Upward Compatible with 5−Bit CS5155/CS5156

• 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

• Adaptive Voltage Positioning

• V2™ Control Topology

• Current Sharing

• Overvoltage Protection