HIP6020ACB Intersil Corporation, HIP6020ACB Datasheet

HIP6020ACB

Manufacturer Part Number

HIP6020ACB

Description

Advanced Dual PWM and Dual Linear Power Controller

Manufacturer

Intersil Corporation

Datasheet

1.HIP6020ACB.pdf (16 pages)

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Advanced Dual PWM and Dual Linear

Power Controller

The HIP6020A provides the power control and protection for

four output voltages in high-performance, graphics intensive

microprocessor and computer applications. The IC

integrates two PWM controllers and two linear controllers, as

well as the monitoring and protection functions into a 28-pin

SOIC package. One PWM controller regulates the

microprocessor core voltage with a synchronous-rectiﬁed

buck converter. The second PWM controller supplies the

computer system’s AGP 1.5V or 3.3V bus power with a

standard buck converter. The linear controllers regulate

power for the 1.5V GTL bus and the 1.8V power for the

North/South Bridge core voltage and/or cache memory

circuits.

The HIP6020A includes an Intel-compatible, TTL 5-input

digital-to-analog converter (DAC) that adjusts the core PWM

output voltage from 1.3V

from 2.1V

reference and voltage-mode control provide 1% static

regulation. The second PWM controller’s output is user-

selectable, through a TTL-compatible signal applied at the

SELECT pin, for levels of 1.5V ( 3%) or fully ON switch. The

linear regulators use external N-Channel MOSFETs or

bipolar NPN pass transistors to provide output voltages of

1.5V 3% (V

The HIP6020A monitors all the output voltages. A single

Power Good signal is issued when the core is within 10% of

the DAC setting and all other outputs are above their under-

voltage levels. Additional built-in over-voltage protection for

the core output uses the lower MOSFET to prevent output

voltages above 115% of the DAC setting. The PWM

controllers’ over-current function monitors the output current

by using the voltage drop across the upper MOSFET’s

Ordering Information

DS(ON)

HIP6020ACB

PART NUMBER

, eliminating the need for a current sensing resistor.

OUT3

to 3.5V

) and 1.8V 3% (V

RANGE (

TEMP.

0 to 70

in 0.1V increments. The precision

4-1

to 2.05V

28 Ld SOIC

Data Sheet

OUT4

PACKAGE

in 0.05V steps and

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

M28.3

PKG.

NO.

Features

• Provides 4 Regulated Voltages

• Drives N-Channel MOSFETs

• Linear Regulator Drives Compatible with both MOSFET

• Simple Single-Loop Control Designs

• Fast PWM Converter Transient Response

• Excellent Output Voltage Regulation

• TTL-Compatible 5 Bit DAC Microprocessor Core Output

• Power-Good Output Voltage Monitor

• Over-Voltage and Over-Current Fault Monitors

• Small Converter Size

Applications

• Motherboard Power Regulation for Computers

Pinout

1-888-INTERSIL or 321-724-7143

- Microprocessor Core, AGP Bus, North/South Bridge

and Bipolar Series Pass Transistors

- Voltage-Mode PWM Control

- High-Bandwidth Error Ampliﬁers

- Full 0% to 100% Duty Ratios

- Core PWM Output: 1% Over Temperature

- AGP Bus PWM Output: 3% Over Temperature

- Other Outputs: 3% Over Temperature

Voltage Selection

- Wide Range - 1.3V

- Switching Regulators Use MOSFET’s r

- Constant Frequency Operation

- 200kHz Free-Running Oscillator; Programmable From

- Small External Component Count

and/or Cache Memory, and GTL Bus Power

(1.5V Setting Only)

50kHz to Over 1MHz

FAULT/RT

UGATE2

PHASE2

OCSET2

SELECT

PGOOD

April 1999

VSEN2

VID4

VID3

VID2

VID1

VID0

FB4

HIP6020A (SOIC)

TOP VIEW

to 3.5V

File Number

HIP6020A

Intersil Corporation 1999

VCC

UGATE1

PHASE1

LGATE1

PGND

OCSET1

VSEN1

FB1

COMP1

FB3

DRIVE3

GND

VAUX

DRIVE4

DS(ON)

Sensing

4735

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