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