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