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HIP6311ACBZ

更新时间： 2024-11-09 22:51:23
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英特矽尔 - INTERSIL 调节器微处理器多相元件控制器
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16页 441K
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Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller

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HIP6311ACBZ 数据手册

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HIP6311A  
®
Data Sheet  
July 2004  
FN9035.1  
Microprocessor CORE Voltage Regulator  
Multi-Phase Buck PWM Controller  
Features  
• Precision CORE Voltage Regulation  
- ±0.5% System Accuracy Over Temperature  
The HIP6311A Multi-Phase Buck PWM control IC together  
with HIP6601A, HIP6602A or HIP6603A companion gate  
drivers form a precision voltage regulation system for  
advanced microprocessors. The HIP6311A controls  
microprocessor core voltage regulation by driving 2 to 4  
synchronous-rectified buck channels in parallel. The multi-  
phase buck topology takes advantage of interleaving phases  
to increase ripple frequency and reduce input and output  
ripple currents. Resulting in fewer components, reduced  
component ratings, lower power dissipation, and smaller  
implementation area.  
• Microprocessor Voltage Identification Input  
- 5-Bit VID Input  
- 1.100V to 1.850V in 25mV Steps  
- Programmable Droop Voltage  
• R  
DS(on)  
Current Sensing  
- Accurate Channel Current Balancing  
- Loss less Current Sampling  
- Low-Cost Implementation  
• Fast Transient Response  
• Digital Soft Start  
The HIP6311A control IC features a 5 bit digital-to-analog  
converter (DAC) that adjusts the core output voltage from  
1.100V to 1.850V with an unsurpassed system accuracy of  
±0.5% over temperature. The HIP6311A uses a lossless  
current sensing approach in which the voltage developed  
across the on-resistance of the lower MOSFETs during  
conduction is sampled. Current sensing provides the  
required signals for precision droop, channel-current  
balancing, load sharing, and over-current protection.  
• Over Current Protection  
• Selection of 2, 3, or 4 Phase Operation  
• 50kHz to 1.5MHz Switching Frequency  
• Pb-free available  
Applications  
Another feature of this control IC is the PGOOD monitor  
which is held low until the core voltage increases to within  
8% of the programmed voltage. An over-voltage condition is  
detected when the output voltage exceeds 115% of the  
programmed VID. This results in the converter shutting down  
and PGOOD being pulled low. During an under-voltage  
condition (output voltage 10% below the programmed VID),  
PGOOD transitions low, but the converter continues to  
operate.  
• Desktop Motherboards  
• Voltage Regulator Modules  
• Servers and Workstations  
Pinout  
HIP6311A (SOIC)  
TOP VIEW  
1
2
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
VID4  
VID3  
V
CC  
Ordering Information  
PGOOD  
PWM4  
ISEN4  
ISEN1  
PWM1  
PWM2  
ISEN2  
ISEN3  
PWM3  
o
PART NUMBER  
TEMP. ( C)  
PACKAGE  
PKG. NO.  
M20.3  
3
VID2  
HIP6311ACB  
0 to 70  
20 Ld SOIC  
4
VID1  
5
VID0  
HIP6311ACBZ  
(See Note)  
0 to 70  
20 Ld SOIC  
(Pb-free)  
M20.3  
6
COMP  
FB  
7
HIP6311ACBZA  
(See Note)  
0 to 70  
20 Ld SOIC  
(Pb-free)  
M20.3  
8
FS/DIS  
GND  
9
*Add “-T” suffix to part number for tape and reel packaging.  
10  
VSEN  
NOTE: Intersil Pb-free products employ special Pb-free material  
sets; molding compounds/die attach materials and 100% matte tin  
plate termination finish, which is 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-020B.  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 321-724-7143 | Intersil and Design is a trademark of Intersil Americas Inc.  
Copyright © Intersil Americas Inc. 2001, 2004, All Rights Reserved  
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