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ISL6523A - VRM8.5 Dual PWM and Dual Linear Power System Controller

Datasheet Summary

Description

VCC (Pin 28) Provide a 12V bias supply for the IC to th

Features

  • Provides 4 Regulated Voltages - Microprocessor Core, AGTL+ Bus, AGP Bus Power, and North/South Bridge Core.
  • Drives N-Channel MOSFETs.
  • Linear Regulator Drives Compatible with both MOSFET and Bipolar Series Pass Transistors.
  • Simple Single-Loop Control Designs - Voltage-Mode PWM Control.
  • Fast PWM Converter Transient Response - High-Bandwidth Error Amplifiers - Full 0% to 100% Duty Ratios.
  • Excellent Output Voltage Regulation - Core PWM Output.

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Datasheet Details

Part number ISL6523A
Manufacturer Intersil Corporation
File Size 408.88 KB
Description VRM8.5 Dual PWM and Dual Linear Power System Controller
Datasheet download datasheet ISL6523A Datasheet
Additional preview pages of the ISL6523A datasheet.

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Full PDF Text Transcription

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ISL6523A TM Data Sheet February 2002 FN9063 VRM8.5 Dual PWM and Dual Linear Power System Controller The ISL6523A provides the power control and protection for four output voltages in high-performance microprocessor and computer applications. The IC integrates two PWM controllers and two linear controllers, as well as the monitoring and protection functions into a 28-pin SOIC package. One PWM controller regulates the microprocessor core voltage with a synchronous-rectified buck converter. The second PWM controller supplies the computer system’s AGTL+ 1.2V bus power with a standard buck converter. The linear controllers regulate power for the 1.5V AGP bus and the 1.8V power for the chipset core voltage and/or cache memory circuits. The ISL6523A includes an Intel VRM8.
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