hip6521 Intersil Corporation, hip6521 Datasheet

hip6521

Manufacturer Part Number

hip6521

Description

Pwm And Triple Linear Power Controller

Manufacturer

Intersil Corporation

Datasheet

1.HIP6521.pdf (13 pages)

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Download datasheet (357Kb)

PWM and Triple Linear Power Controller

The HIP6521 provides the power control and protection for

four output voltages in high-performance microprocessor and

computer applications. The IC integrates a voltage-mode

PWM controller and three linear controllers, as well as

monitoring and protection functions into a 16 Ld SOIC

package. The PWM controller is intended to regulate the

microprocessor memory core voltage with a

synchronous-rectified buck converter. The linear controllers

are intended to regulate the computer system’s AGP 1.5V bus

power, the 2.5V clock power, and the 1.8V power for the

North/South Bridge core voltage and/or cache memory

circuits. Both the switching regulator and linear voltage

references provide ±2% of static regulation over line, load,

and temperature ranges. All outputs are user-adjustable by

means of an external resistor divider. All linear controllers

employ bipolar NPNs for the pass transistors.

The HIP6521 monitors all the output voltages. The PWM

controller’s adjustable overcurrent function monitors the

output current by using the voltage drop across the upper

MOSFET’s r

monitored via the FB pins for undervoltage events.

Ordering Information

NOTE: Intersil Pb-free plus anneal products employ special Pb-free

material sets; molding compounds/die attach materials and 100%

matte tin plate termination finish, which are RoHS compliant and

compatible with both SnPb and Pb-free soldering operations. Intersil

Pb-free products are MSL classified at Pb-free peak reflow

temperatures that meet or exceed the Pb-free requirements of

IPC/JEDEC J STD-02.

Add “-T” suffix for tape and reel.

HIP6521CB

HIP6521CBZ

(Note)

HIP6521EVAL1 Evaluation Board

NUMBER

PART

DS(ON)

HIP6521CB

6521CBZ

MARKING

PART

. The linear regulator outputs are

RANGE (°C) PACKAGE

TEMP.

0 to 70

Data Sheet

16 Ld SOIC

(Pb-free)

DWG. #

M16.15

1-888-INTERSIL or 1-888-468-3774

PKG.

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Features

• Provides 4 Regulated Voltages

• ACPI Compatible

• Drives Bipolar Linear Pass Transistors

• Externally Resistor-Adjustable Outputs

• Simple Single-Loop Control Design

• Fast PWM Converter Transient Response

• Excellent Output Voltage Regulation

• Overcurrent Fault Monitors

• Small Converter Size

• Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

• Motherboard Power Regulation for Computers

Related Literature

• Technical Brief TB363 “Guidelines for Handling and

Pinout

- Memory Core, AGP, Clock, and Memory Controller Hub

- Voltage-Mode PWM Control

- High-Bandwidth Error Amplifier

- Full 0% to 100% Duty Ratio

- All Outputs: ±2% Over Temperature

- Switching Regulator Does Not Require Extra Current

- 300kHz Constant Frequency Operation

- Small External Component Count

Processing Moisture Sensitive Surface Mount Devices

(SMDs)”

Power

Sensing Element, Uses MOSFET’s r

October 16, 2006

All other trademarks mentioned are the property of their respective owners.

Intersil (and design) is a registered trademark of Intersil Americas Inc.

DRIVE2

PHASE

UGATE

COMP

BOOT

GND

FB2

HIP6521 (SOIC)

TOP VIEW

DS(ON)

FB3

DRIVE3

FB4

DRIVE4

OCSET

VCC

LGATE

PGND

HIP6521

FN4837.5

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