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MAX1981A - Quick-PWM Master Controllers

This page provides the datasheet information for the MAX1981A, a member of the MAX1907A Quick-PWM Master Controllers family.

Datasheet Summary

Description

The MAX1907A/MAX1981A are single-phase, QuickPWM™ master controllers for IMVP-IV™ CPU core supplies.

Multi-phase operation is achieved using a Quick-PWM slave controller (MAX1980).

Features

  • power-up sequencing, automatically ramping up to the Intel-specified boot voltage. The MAX1907A/MAX1981A feature independent four-level logic inputs for setting the boot voltage (B0.
  • B2) and the suspend voltage (S0.
  • S2). The MAX1907A/MAX1981A include output undervoltage protection, thermal protection, and system power-OK (SYSPOK) input/output. When any of these protection features detect a fault, the MAX1907A/MAX1981A immediately shut down. Additionally, the MAX1907A includes overv.

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Datasheet preview – MAX1981A

Datasheet Details

Part number MAX1981A
Manufacturer Maxim Integrated Products
File Size 872.18 KB
Description Quick-PWM Master Controllers
Datasheet download datasheet MAX1981A Datasheet
Additional preview pages of the MAX1981A datasheet.

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Full PDF Text Transcription

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19-2678; Rev 0; 9/02 www.DataSheet4U.com Quick-PWM Master Controllers for VoltagePositioned CPU Core Power Supplies (IMVP-IV) General Description The MAX1907A/MAX1981A are single-phase, QuickPWM™ master controllers for IMVP-IV™ CPU core supplies. Multi-phase operation is achieved using a Quick-PWM slave controller (MAX1980). Multiphase operation reduces input ripple current requirements and output voltage ripple while easing component selection and layout difficulties. The MAX1907A/ MAX1981A include active voltage positioning with adjustable gain and offset, reducing power dissipation and bulk output capacitance requirements.
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