参数资料
| 型号： | ISL6524ACB |
| 厂商： | Intersil |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR VRM8.5 PWM TRPL 28-SOIC |
| 标准包装： | 26 |
| 应用： | 控制器，Intel VRM8.5 |
| 输入电压： | 10.8 V ~ 13.2 V |
| 输出数： | 4 |
| 输出电压： | 多重 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | * |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | * |
| 包装： | 管件 |
?
ISL6524A
Data Sheet
April 8, 2005
FN9064.1
VRM8.5 PWM and Triple Linear Power
System Controller
The ISL6524A provides the power control and protection for
four output voltages in high-performance microprocessor and
computer applications. The IC integrates one 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. One linear controller
supplies the computer system’s AGTL+ 1.2V bus power. The
other two linear controllers regulate power for the 1.5V AGP
bus and the 1.8V power for the chipset core voltage and/or
cache memory circuits.
The ISL6524A includes an Intel VRM8.5 compatible, TTL
5-input digital-to-analog converter (DAC) that adjusts the
microprocessor core-targeted PWM output voltage from
1.050V to 1.825V in 25mV steps. The precision reference and
voltage-mode control provide ± 1% static regulation. The linear
regulators use external N-channel MOSFETs or bipolar NPN
pass transistors to provide fixed output voltages of 1.2V ± 3%
(V OUT2 ), 1.5V ± 3% (V OUT3 ) and 1.8V ± 3% (V OUT4 ).
The ISL6524A monitors all the output voltages. A delayed-
rising VTT (V OUT2 output) Power Good signal is issued
before the core PWM starts to ramp up. Another system
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
controllers’ over-current function monitors the output current
by using the voltage drop across the upper MOSFET’s
r DS(ON) , eliminating the need for a current sensing resistor.
Features
? Provides 4 Regulated Voltages
- Microprocessor Core, AGTL+ Bus, AGP Bus Power,
and North/South Bridge Core
? Drives N-Channel MOSFETs
? Linear Regulator Drives Compatible with both MOSFET
and Bipolar Series Pass Transistors
? Simple Single-Loop Control Design
- Voltage-Mode PWM Control
? Fast PWM Converter Transient Response
- High-Bandwidth Error Amplifier
- Full 0% to 100% Duty Ratio
? Excellent Output Voltage Regulation
- Core PWM Output: ± 1% Over Temperature
- All Other Outputs: ± 3% Over Temperature
? VRM8.5 TTL-Compatible 5-Bit DAC Microprocessor Core
Output Voltage Selection
- Wide Range - 1.050V to 1.825V
? Power-Good Output Voltage Monitors
- Separate delayed VTT Power Good
? Over-Voltage and Over-Current Fault Monitors
- Switching Regulator Doesn’t Require Extra Current
Sensing Element, Uses MOSFET’s r DS(ON)
? Small Converter Size
- Constant Frequency Operation
- 200kHz Internal Oscillator
? Pb-Free Available (RoHS Compliant)
Applications
? Motherboard Power Regulation for Computers
Ordering Information
Pinout
ISL6524A (SOIC) TOP VIEW
TEMP.
RANGE
PKG.
DWG.
DRIVE2 1
28 VCC
PART NUMBER
ISL6524ACB*
(°C)
0 to 70
PACKAGE
28 Ld SOIC
#
M28.3
FIX 2
VID3 3
VID2 4
27 UGATE
26 PHASE
25 LGATE
ISL6524ACBZ* (Note)
ISL6524ACBZA-T (Note)
0 to 70
0 to 70
28 Ld SOIC (Pb-free) M28.3
28 Ld SOIC (Pb-free) M28.3
VID1 5
VID0 6
24 PGND
23 OCSET
ISL6524EVAL1
Evaluation Board
VID25 7
PGOOD 8
22 VSEN1
21 FB
*Add “-T” suffix for tape and reel.
NOTE: Intersil Pb-free products employ special Pb-free material sets;
molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and 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-020.
VTTPG 9
FAULT/RT 10
VSEN2 11
SS24 12
SS13 13
VSEN4 14
20 COMP
19 VSEN3
18 DRIVE3
17 GND
16 VAUX
15 DRIVE4
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-352-6832 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2002, 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6524ACB-T | 功能描述:IC CTRLR VRM8.5 PWM TRPL 28-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| ISL6524ACBZ | 功能描述:IC CTRLR VRM8.5 PWM TRPL 28-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
| ISL6524ACBZA-T | 功能描述:IC CTRLR VRM8.5 PWM TRPL 28-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
| ISL6524ACBZ-T | 功能描述:IC CTRLR VRM8.5 PWM TRPL 28-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器，Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN（7x7） 包装:管件 |
| ISL6524CB | 功能描述:IC CTRLR VRM8.5 PWM TRPL 28-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
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