5−Bit Synchronous CPU Buck Controller

The CS5165 synchronous 5−bit NFET buck controller is optimized to manage the power of the next generation Pentium II processors. It’s V2™ control architecture delivers the fastest transient response (100 ns), and best overall voltage regulation in the industry today. It’s feature rich design gives end users the maximum flexibility to implement the best price/performance solutions for their end products.

Features

• V2 Control Topology

• Dual N−Channel Design

• 100 ns Controller Transient Response

• Excess of 1.0 MHz Operation

• 5−Bit DAC with 1.0 Tolerance

• Power Good Output With Internal Delay

• Enable Input Provides Micropower Shutdown Mode

• 5.0 V & 12 V Operation

• Adaptive Voltage Positioning

• Remote Sense Capability

• Current Sharing Capability

• VCC Monitor

• Hiccup Mode Short Circuit Protection

• Overvoltage Protection (OVP)

• Programmable Soft Start

• 150 ns PWM Blanking

• 65 ns FET Nonoverlap Time

• 40 ns Gate Rise and Fall Times (3.3 nF Load)