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LX1677 - AMD64 Processor VRM Controller

Description

KEY

Features

  • High Current Biphase Operation.
  • Outputs As Low As 0.800V.
  • † Biphase LoadSHARETM.
  • ‡ Transient Correction Loop™ Reduces Required Capacitance.
  • Differential Amplifier For Remote Voltage Sensing.
  • Integrated High Current MOSFET Drivers.
  • 200KHz to 1MHz Frequency Operation.
  • Programmable Slew Rate Control For Start-Up Sequence and VID change.
  • VID Changes On The Fly.
  • Power Good Indicator.
  • Short Circuit Protection.
  • Output Over Voltage and Under V.

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Full PDF Text Transcription

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www.DataSheet4U.com LX1677 TM ® AMD64 Processor VRM Controller P RODUCTION D ATA S HEET DESCRIPTION KEY FEATURES ƒ High Current Biphase Operation ƒ Outputs As Low As 0.800V ƒ † Biphase LoadSHARETM ƒ ‡ Transient Correction Loop™ Reduces Required Capacitance ƒ Differential Amplifier For Remote Voltage Sensing ƒ Integrated High Current MOSFET Drivers ƒ 200KHz to 1MHz Frequency Operation ƒ Programmable Slew Rate Control For Start-Up Sequence and VID change ƒ VID Changes On The Fly ƒ Power Good Indicator ƒ Short Circuit Protection ƒ Output Over Voltage and Under Voltage Protection ƒ No current-sense resistors APPLICATIONS The LX1677 is a highly integrated VRM power supply controller IC featuring two PWM switching regulator stages.
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