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ISL6219CA

更新时间： 2024-11-11 22:09:23
品牌 Logo 应用领域
英特矽尔 - INTERSIL 调节器微处理器多相元件控制器
页数 文件大小 规格书
17页 471K
描述
Microprocessor CORE Voltage Regulator Precision Multi-Phase BUCK PWM Controller for Mobile Applications

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ISL6219CA 数据手册

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ISL6219  
®
Data Sheet  
June 2002  
FN9080.1  
Microprocessor CORE Voltage Regulator  
Precision Multi-Phase BUCK PWM  
Controller for Mobile Applications  
Features  
• Multi-Phase Power Conversion  
• Active Channel Current Balancing  
• Lossless current sense scheme  
The ISL6219 provides core-voltage regulation by driving up  
to three interleaved synchronous-rectified buck-converter  
channels in parallel. Intersil multi-phase controllers together  
with ISL6207 gate drivers form the basis for the most reliable  
power-supply solutions available to power the latest  
industry-leading microprocessors. Multi-phase buck-  
converter architecture uses interleaved timing to multiply  
ripple frequency and reduce input and output ripple currents.  
Lower ripple results in lower total component cost, reduced  
dissipation, and smaller implementation area. Pre-  
configured for 3-phase operation, the ISL6219 also offers 2-  
phase operation. Simply connect the unused PWM pin to  
+5V. The channel switching frequency is adjustable in the  
range of 100kHz to 1.5MHz giving the designer the ultimate  
flexibility in managing the balance between high-speed  
response and good thermal management.  
- Uses MOSFET’s R  
DS(ON)  
- Optional current sense method higher precision  
• Precision CORE Voltage Regulation  
- ±0.8% System Accuracy Over Temperature  
• Microprocessor Voltage Identification Input  
- Dynamic VID technology  
- 5-Bit VID Input  
- 1.100V to 1.850V in 25mV Steps  
• Programmable Droop Voltage  
• Fast Transient Recovery Time  
• Over Voltage, Under Voltage and Overcurrent Protection  
• Power-Good Output  
New features on the ISL6219 include Dynamic-VID™  
technology allowing seamless on-the-fly VID changes with  
no need for any additional external components. When the  
ISL6219 receives a new VID code, it incrementally steps the  
output voltage to the new level. Dynamic VID™ changes are  
fast and reliable with no output voltage overshoot or  
undershoot.  
• 2 or 3 Phase Operation  
• User selectable Switching Frequency of 100K - 1.5MHz  
- 200KHz - 4.5MHz Effective Ripple Frequency  
Ordering Information  
o
PART NUMBER  
TEMP. ( C)  
PACKAGE  
PKG. NO.  
ISL6219CA  
-10 to 85  
28-Ld SSOP M28.15  
Like other Intersil multiphase controllers, the ISL6219 uses  
cost and space-saving r  
sensing for channel current  
DS(ON)  
balance and dynamic voltage positioning. Channel current  
balancing is automatic and accurate with the integrated  
current-balance control system. Over current protection can  
be tailored to any application with no need of additional  
parts.  
Pinout  
ISL6219 (28 LEAD SSOP)  
TOP VIEW  
VID 0  
VID 1  
1
28  
27  
26  
VCC  
NC  
An integrated DAC decodes the 5-bit logic signal present at  
VID0-VID4 and provides an accurate reference for precision  
voltage regulation. The high-bandwidth error amplifier and  
accurate voltage reference all work together to provide  
better than 0.8% total system accuracy, and to enable the  
fastest transient response available. A window comparator  
toggles PGOOD if the output voltage moves out of range  
and acts to protect the load in case of over voltage.  
2
3
VID 2  
VID 3  
VID 4  
NC  
NC  
25  
24  
4
5
PGOOD  
NC  
6
7
23  
22  
ISEN1  
PWM1  
PWM2  
FSET/EN  
NC  
21  
20  
19  
8
9
FB  
ISEN2  
ISEN3  
10  
COMP  
NC  
11  
12  
13  
14  
18  
17  
16  
15  
PWM3  
NC  
NC  
NC  
GND  
VSEN  
NC  
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. 2002. All Rights Reserved  
1
Dynamic VID is a trademark of Intersil Americas Inc.  
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