Datasheet > HIP6021EVAL1

HIP6021EVAL1

更新时间： 2024-11-25 22:09:43

品牌	Logo	应用领域
英特矽尔 - INTERSIL		控制器
页数	文件大小	规格书
15页	140K
描述
Advanced PWM and Triple Linear Power Controller

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HIP6021EVAL1 数据手册

HIP6021

Data Sheet

February 1999

File Number 4684

Advanced PWM and Triple Linear Power

Controller

Features

• Provides 4 Regulated Voltages

The HIP6021 provides the power control and protection for

four output voltages in high-performance, graphics intensive

microprocessor and computer applications. The IC

- Microprocessor Core, AGP Bus, Memory, and GTL Bus

Power

• Drives N-Channel MOSFETs

integrates a voltage-mode PWM controller and three linear

controllers, as well as the monitoring and protection

functions into a 28-pin SOIC package. The PWM controller

regulates the microprocessor core voltage with a

synchronous-rectiﬁed buck converter. The linear controllers

regulate the computer system’s AGP 1.5V or 3.3V bus

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

North/South Bridge core voltage and/or cache memory

circuits. The HIP6021 includes an Intel-compatible, TTL

5-input digital-to-analog converter (DAC) that adjusts the

• Linear Regulator Drives Compatible with both MOSFET

and Bipolar Series Pass Transistors

• Fixed or Externally Resistor-Adjustable Linear Outputs

(FIX Pin)

• Simple Single-Loop Control Design

- Voltage-Mode PWM Control

• Fast PWM Converter Transient Response

- High-Bandwidth Error Ampliﬁer

- Full 0% to 100% Duty Ratio

core PWM output voltage from 1.3V

to 2.05V

in 0.05V

in 0.1V increments. The

steps and from 2.1V

to 3.5V

• Excellent Output Voltage Regulation

- Core PWM Output: ±1% Over Temperature

- Other Outputs: ±3% Over Temperature

precision reference and voltage-mode control provide ±1%

static regulation. The AGP bus power linear controller’s

output (V

) is user-selectable, through a TTL-compatible

OUT2

• TTL-Compatible 5-Bit DAC Microprocessor Core Output

Voltage Selection

signal applied at the SELECT pin, for levels of 1.5V or 3.3V

with ±3% accuracy. Based on the status of the FIX pin, the

other two linear regulators provide either ﬁxed output

- Wide Range . . . . . . . . . . . . . . . . . . . 1.3V

to 3.5V

• Power-Good Output Voltage Monitor

voltages of 1.5V±3% (V

) and 1.8V±3% (V ), or

OUT3

OUT4

user-adjustable by means of an external resistor divider. All

linear controllers can employ either N-channel MOSFETs or

bipolar NPNs for the pass transistor.

• Over-Voltage and Over-Current Fault Monitors

- Switching Regulator Does Not Require Extra Current

Sensing Element, Uses MOSFET’s r

DS(ON)

The HIP6021 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

• Small Converter Size

- Constant Frequency Operation

- 200kHz Free-Running Oscillator; Programmable From

50kHz to Over 1MHz

- Small External Component Count

Pinout

controller’s over-current function monitors the output current

by using the voltage drop across the upper MOSFET’s

HIP6021 (SOIC)

TOP VIEW

DS(ON)

DRIVE2

FIX

28 VCC

Ordering Information

27 UGATE

26 PHASE

25 LGATE

24 PGND

23 OCSET

22 VSEN1

21 FB

VID4

VID3

VID2

VID1

VID0

PGOOD

TEMP.

PKG.

NO.

PART NUMBER RANGE ( C)

PACKAGE

28 Ld SOIC

Evaluation Board

HIP6021CB

0 to 70

M28.3

HIP6021EVAL1

20 COMP

19 VSEN3

18 DRIVE3

17 GND

Applications

VSEN2 10

SELECT 11

SS 12

•

Motherboard Power Regulation for Computers

FAULT/RT 13

VSEN4 14

16 VAUX

15 DRIVE4

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

2-296

12 3 4 5 6 7...15

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