The CS5166 is a synchronous dual NFET buck controller. It is designed to power the core logic of the latest high performance CPUs. It uses V2™ control method to achieve the fastest possible transient response and best overall regulation. It incorporates many additional features required to ensure the proper operation and protection of the CPU and power system. The CS5166 provides the industry’s most highly integrated solution, minimizing external component count, total solution size, and cost.

Features

• V2 Control Topology

• Dual N−Channel Design

• 125 ns Controller Transient Response

• Excess of 1.0 MHz Operation

• 5−Bit DAC with 1.0 Tolerance

• Power Good Output With Internal Delay

• Adjustable Hiccup Mode Overcurrent Protection

• Complete Pentium II System Requires Just 21 Components

• 5.0 V & 12 V Operation

• Adaptive Voltage Positioning

• Remote Sense Capability

• Current Sharing Capability

• VCC Monitor

• Overvoltage Protection (OVP)

• Programmable Soft Start

• 200 ns PWM Blanking

• 65 ns FET Nonoverlap Time

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