CS5151H

CS5151H CPU 4−Bit Nonsynchronous Buck Controller The CS5151H 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 CS5151H is designed to operate over a 4.25−20 V range (VCC) using 12 V to power the IC and 5.0 V or 12 V as the main supply for conversion. The CS5151H is specifically designed to power Pentium® processors with MMX™ Technology and other high performance core logic. It includes the following features: on board, 4−bit DAC, short circuit protection, 1.0% output tolerance, VCC monitor, and programmable Soft Start capability. The CS5151H is upwards compatible with the 5−bit CS5156H, allowing the mother board designer the capability of using either the CS5151H or the CS5156H with no change in layout. The CS5151H is available in 16 pin surface mount package. Features N−Channel Design Excess of 1.0 MHz Operation 100 ns Transient Response 4−Bit DAC Upward Compatible with 5−Bit CS5155H/CS5156H 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 http://onsemi.com MARKING DIAGRAM 16 1 SOIC−16 D SUFFIX CASE 751B 16 CS5151H AWLYWW...