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參數(shù)資料
| 型號(hào)： | ISL6524A |
| 廠商： | Intersil Corporation |
| 英文描述： | Adjustable Precision Shunt Regulator 3-SOT-23 -40 to 85 |
| 中文描述： | VRM8.5 PWM和三線性電源系統(tǒng)控制器 |
| 文件頁(yè)數(shù)： | 1/16頁(yè) |
| 文件大?。?/td> | 453K |
| 代理商： | ISL6524A |
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1
FN9064.1
ISL6524A
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
Pinout
ISL6524A (SOIC) TOP VIEW
Ordering Information
PART NUMBER
TEMP.
RANGE
(°C)
PACKAGE
PKG.
DWG.
#
ISL6524ACB*
0 to 70
28 Ld SOIC
M28.3
ISL6524ACBZ* (Note)
0 to 70
28 Ld SOIC (Pb-free) M28.3
ISL6524ACBZA-T (Note)
0 to 70
28 Ld SOIC (Pb-free) M28.3
ISL6524EVAL1
Evaluation Board
*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.
DRIVE2
FIX
VID3
VID2
FAULT/RT
VSEN2
SS24
SS13
VSEN4
VCC
PGND
LGATE
PHASE
DRIVE3
COMP
GND
VAUX
DRIVE4
UGATE
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
PGOOD
VID1
VTTPG
VSEN1
VSEN3
VID0
VID25
OCSET
FB
Data Sheet
April 8, 2005
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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISL6524CBZ | VRM8.5 PWM and Triple Linear Power System Controller |
| ISL6524CB-T | VRM8.5 PWM and Triple Linear Power System Controller |
| ISL6524ACB | Adjustable Precision Shunt Regulator 3-SOT-23 -40 to 85 |
| ISL6524ACBZ | Adjustable Precision Shunt Regulator 3-SOT-23 -40 to 85 |
| ISL6524ACBZ-T | Adjustable Precision Shunt Regulator 3-SOT-89 -40 to 85 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL6524ACB | 功能描述:IC CTRLR VRM8.5 PWM TRPL 28-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應(yīng)商設(shè)備封裝:42-WLP 包裝:帶卷 (TR) |
| ISL6524ACB-T | 功能描述:IC CTRLR VRM8.5 PWM TRPL 28-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應(yīng)商設(shè)備封裝:42-WLP 包裝:帶卷 (TR) |
| ISL6524ACBZ | 功能描述:IC CTRLR VRM8.5 PWM TRPL 28-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件 |
| ISL6524ACBZA-T | 功能描述:IC CTRLR VRM8.5 PWM TRPL 28-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件 |
| ISL6524ACBZ-T | 功能描述:IC CTRLR VRM8.5 PWM TRPL 28-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標(biāo)準(zhǔn)包裝:43 系列:- 應(yīng)用:控制器，Intel VR11 輸入電壓:5 V ~ 12 V 輸出數(shù):1 輸出電壓:0.5 V ~ 1.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-QFN（7x7） 包裝:管件 |
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