CS5155H Datasheet | Cherry Semiconductor Corporation

Description The CS5155H 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 100ns response time to load transients. The CS5155H is designed to operate over a 4.25-20V range (VCC) using 12V to power the IC and 5V or 12V as the main supply for conversion. The CS5155H is specifically designed to power Pentium® II processors and other high performance core logic. It includes the following features : on board, 5-bit DAC, short circuit protection, 1.0% output tolerance, VCC monitor, and programmable soft start capability. The CS5155H is backwards patible with the 4 bit CS5150, allowing the mother board designer the capability of using either the CS5150 or the CS5155H with no change in layout. The CS5155H is available in 16 pin surface mount. Features s Dual N-Channel Design s Excess of 1MHz Operation s 100ns Transient Response s 5-Bit DAC s Backward patible with 4 Bit CS5150H/5151H and Adjustable CS5120/5121 s 30ns Gate Rise/Fall Times s 1% DAC Accuracy s 5V & 12V Operation s Remote Sense s Programmable Soft Start s Lossless Short Circuit Protection Application Diagram Switching Power Supply for core logic - Pentium® II processor 12V 5V s VCC Monitor s 25ns FET Nonoverlap Time s Adaptive Voltage Positioning s V2™ Control Topology s Current Sharing s Overvoltage Protection 2µH 1.3V to 3.5V @ 13A 0.1µF 1200µF/16V x 3 Al El IRL3103 VCC1 VCC2 VID0 VID1 VID2 VID3 VID4 330p F SS 0.1µF 0.33µF P LGnd VID0 VID1 VID2 VID3 VID4 COFF VGATE(H) Package Options VGATE(L) IRL3103 1200µF/16V x 5 Al El PGnd VFB VFFB 3.3k 16 Lead SO Narrow VID0 VID1 VID2 VID3 SS VID4 COFF VFFB VFB P LGnd VCC1 VGATE(L) PGnd VGATE(H) VCC2 100p F V2 is a trademark of Switch Power, Inc. Pentium is a registered trademark of Intel Corporation. Cherry Semiconductor Corporation 2000 South County Trail, East...