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HIP6021

更新时间： 2024-11-22 22:51:23
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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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HIP6021 数据手册

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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  
DC  
DC  
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  
DC  
DC  
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  
DC  
DC  
• 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  
r
.
DS(ON)  
DRIVE2  
FIX  
1
2
3
4
5
6
7
8
9
28 VCC  
Ordering Information  
27 UGATE  
26 PHASE  
25 LGATE  
24 PGND  
23 OCSET  
22 VSEN1  
21 FB  
VID4  
VID3  
VID2  
VID1  
VID0  
PGOOD  
SD  
TEMP.  
PKG.  
NO.  
o
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.  
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999  
2-296  
1234567...15

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