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IRU3021M

International Rectifier
Part Number IRU3021M
Manufacturer International Rectifier
Description 5-BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS TRIPLE LDO CONTROLLER
Published Oct 21, 2005
Detailed Description Data Sheet No. PD94145 IRU3021M 5-BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS TRIPLE LDO CONTROLLER DESCRIPTION The IRU3021M...
Datasheet PDF File IRU3021M PDF File

IRU3021M
IRU3021M

Overview
Data Sheet No.
PD94145 IRU3021M 5-BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS TRIPLE LDO CONTROLLER DESCRIPTION The IRU3021M controller IC is specifically designed to meet Intel specification for next generation microprocessor applications requiring multiple on-board regulators.
The IRU3021M provides a single chip controller IC for the Vcore, three LDO controllers, one with an automatic select pin that connects to the Type Detect pin of the AGP slot for the AGP VDDQ supply, one for GTL+ and the other for the 1.
8V chip set regulator as required for the next generation PC applications.
The IRU3021M uses N-channel MOSFET as pass transistor for Vout2(VDDQ), Vout3(1.
5V) and Vout4(1.
8V).
No external resistor divider is necessary for any of the regulators.
The switching regulator feature a patented topology that in combination with a few external components as shown in the typical application circuit, will provide well in excess of 20A of output current for an on-board DC/DC converter while autom...


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