CS5157H CPU 5?Bit Synchronous Buck Controller
The CS5157H 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 CS5157H 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 CS5157H 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 CS5157H is available in 16 pin surface mount.
Features
? Dual N?Channel Design
? Excess of 1.0 MHz Operation
? 100 ns Transient Response
? 5?Bit DAC
? 30 ns Gate Rise/Fall Times
? 1.0% DAC Accuracy
? 5.0 V and 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
? Pb?Free Packages are Available*