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HIP6005ACB

更新时间： 2024-11-18 22:33:43
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英特矽尔 - INTERSIL 监视器控制器
页数 文件大小 规格书
12页 156K
描述
Buck Pulse-Width Modulator (PWM) Controller and Output Voltage Monitor

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HIP6005ACB 数据手册

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HIP6005A  
Data Sheet  
September 1997  
File Number 4418.1  
Buck Pulse-Width Modulator (PWM)  
Controller and Output Voltage Monitor  
Features  
• Drives N-Channel MOSFET  
The HIP6005A provides complete control and protection for  
a DC-DC converter optimized for high-performance  
microprocessor applications. It is designed to drive an  
N-Channel MOSFET in a standard buck topology. The  
HIP6005A integrates all of the control, output adjustment,  
monitoring and protection functions into a single package.  
• Operates from +5V or +12V Input  
• Simple Single-Loop Control Design  
- Voltage-Mode PWM Control  
• Fast Transient Response  
- High-Bandwidth Error Amplifier  
- Full 0% to 100% Duty Ratio  
The output voltage of the converter is easily adjusted and  
precisely regulated. The HIP6005A includes a fully TTL-  
compatible 5-input digital-to-analog converter (DAC) that  
• Excellent Output Voltage Regulation  
- ±1% Over Line Voltage and Temperature  
adjusts the output voltage from 2.1V  
to 3.5V  
in 0.1V  
in 0.05V steps.  
DC  
to 2.05V  
DC  
• TTL-Compatible 5-Bit Digital-to-Analog Output Voltage  
Selection  
increments and from 1.8V  
DC  
DC  
The precision reference and voltage-mode regulator hold the  
selected output voltage to within ±1% over temperature and  
line voltage variations.  
- Wide Range . . . . . . . . . . . . . . . . . . . 1.8V  
- 0.1V Binary Steps. . . . . . . . . . . . . . . 2.1V  
to 3.5V  
to 3.5V  
DC  
DC  
DC  
DC  
DC  
- 0.05V Binary Steps. . . . . . . . . . . . . 1.8V  
to 2.05V  
DC  
The HIP6005A provides simple, single feedback loop, voltage-  
mode control with fast transient response. It includes a  
200kHz free-running triangle-wave oscillator that is adjustable  
from below 50kHz to over 1MHz. The error amplifier features  
a 15MHz gain-bandwidth product and 6V/µs slew rate which  
enables high converter bandwidth for fast transient  
performance. The resulting PWM duty ratio ranges from 0% to  
100%.  
• Power-Good Output Voltage Monitor  
• Over-Voltage and Over-Current Fault Monitors  
- Does Not Require Extra Current Sensing Element,  
Uses MOSFET’s r  
DS(ON)  
• Small Converter Size  
- Constant Frequency Operation  
- 200kHz Free-Running Oscillator Programmable from  
50kHz to over 1MHz  
The HIP6005A monitors the output voltage with a window  
comparator that tracks the DAC output and issues a Power  
Good signal when the output is within ±10%. The HIP6005A  
protects against over-current and over-voltage conditions by  
inhibiting PWM operation. Additional built-in over-voltage  
protection triggers an external SCR to crowbar the input  
supply. The HIP6005A monitors the current by using the  
Applications  
• Power Supply for Pentium®, Pentium Pro, Pentium II,  
PowerPC™, K6™, 6X86™ and Alpha™ Microprocessors  
High-Power 5V to 3.xV DC-DC Regulators  
Low-Voltage Distributed Power Supplies  
•
•
r
of the upper MOSFET which eliminates the need for  
DS(ON)  
a current sensing resistor.  
Pinout  
Ordering Information  
HIP6005A  
(SOIC)  
TOP VIEW  
TEMP.  
PKG.  
NO.  
o
PART NUMBER RANGE ( C)  
PACKAGE  
20 Ld SOIC  
HIP6005ACB  
0 to 70  
M20.3  
1
2
3
4
5
6
7
8
9
R
T
V
20  
19  
SEN  
OCSET  
SS  
OVP  
18 V  
CC  
VID0  
VID1  
VID2  
VID3  
VID4  
COMP  
17 NC  
16 NC  
15 BOOT  
14 UGATE  
13 PHASE  
6X86™ is a trademark of Cyrix Corporation.  
Alpha™ is a trademark of Digital Equipment Corporation.  
K6™ is a trademark of Advanced Micro Devices, Inc.  
Pentium® is a registered trademark of Intel Corporation.  
PowerPC™ is a trademark of IBM.  
12  
PGOOD  
FB 10  
11 GND  
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  
2-98  
1234567...12

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