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The CS5161/5161H are 5bit synchronous dual NChannel buck controllers designed to provide unprecedented transient response for today's demanding highdensity, highspeed logic. They operate using a proprietary control method which allows a 100 ns response time to load transients. The CS5161 is designed to operate over a 916 V range (VCC) using 12 V to power the IC and 5.0 V as the main supply for conversion.
The CS5161H operates from a 12 V input as the main supply for conversion using a discrete charge pump circuit to provide up to 20 V for VCC2 and high side gate drive.
The CS5161/5161H are specifically designed to power Pentium III processors and other high performance core logic. They include the following features: on board 5bit DAC, short circuit protection, 1.0% output tolerance, VCC monitor, and programmable Soft Start capability. The CS5161/5161H are available in 16 pin surface mount packages.
CS5161H Maximum Ratings
Rating
Value
Unit
Operating Junction Temperature, TJ
0 to 150
°C
Storage Temperature Range,TS
65 to 150
°C
ESD Susceptibility (Human Body Model)
2.0
KV
Lead Temperature Soldering: Reflow:(SMD styles only)(Note1.)
230 peak
°C
1. 60 second maximum above 183°C. *The maximum package power dissipation must be observed.
CS5161H Features
• Dual NChannel Design • Excess of 1.0 MHz Operation • 100 ns Transient Response • 5Bit DAC • Backward Compatible with CS515X Family • 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 • 50 ns FET Nonoverlap Time • V2TMControl Topology • Current Sharing • Overvoltage Protection