MAX1981A Datasheet Quick-pwm Master Controllers

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-2678; Rev 0; 9/02 www.DataSheet4U.com Quick-PWM Master Controllers for VoltagePositioned CPU Core Power Supplies.

This datasheet includes multiple variants, all published together in a single manufacturer document.

Datasheet Details

Part number	MAX1981A
Manufacturer	Maxim Integrated (now Analog Devices)
File Size	872.18 KB
Description	Quick-PWM Master Controllers
Datasheet	MAX1981A MAX1907A Datasheet (PDF)

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.

Key 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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