Description

The CS5166H is a synchronous dual NFET Buck Regulator Controller. It is designed to power the core logic of the latest high performance CPUs. It uses the V2TM 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 CS5166H provides the industry’s most highly integrated solution, minimizing external component count, total solution size, and cost.

Features

■ V2TM Control Topology

■ Dual N-Channel Design

■ 125ns Controller Transient Response

■ Excess of 1Mhz Operation

■ 5-bit DAC with 1 Tolerance

■ Power-Good Output with Internal

Delay

■ Adjustable Hiccup Mode Over

Current Protection

■ Complete Pentium?II System

Requires just 21 Components

■ 5V and 12V Operation using either

Dual or Single Supplies

■ Adaptive Voltage Positioning

■ Remote Sense Capability

■ Current Sharing Capability

■ VCC Monitor

■ Overvoltage Protection (OVP)

■ Programmable Soft Start

■ 200ns PWM Blanking

■ 65ns FET Non-Overlap

■ 40ns Gate Rise and Fall Times

(3.3nF load)