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參數(shù)資料
| 型號(hào)： | ISL6524CBZ-T |
| 廠商： | INTERSIL CORP |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | VRM8.5 PWM and Triple Linear Power System Controller |
| 中文描述： | SWITCHING CONTROLLER, 215 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | ROHS COMPLIANT, PLASTIC, MS-013-AE, SOIC-28 |
| 文件頁(yè)數(shù)： | 1/16頁(yè) |
| 文件大?。?/td> | 445K |
| 代理商： | ISL6524CBZ-T |
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1
FN9015.3
ISL6524
VRM8.5 PWM and Triple Linear Power
System Controller
The ISL6524 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 chip
set core voltage and/or cache memory circuits.
The ISL6524 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 ISL6524 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 overvoltage protection for
the core output uses the lower MOSFET to prevent output
voltages above 115% of the DAC setting. The PWM
controllers’ overcurrent 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
Overcurrent Fault Monitor
- 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
ISL6524 (SOIC)
TOP VIEW
Ordering Information
PART NUMBER
TEMP.
RANGE (°C)
PACKAGE
PKG.
DWG. #
ISL6524CB*
0 to 70
28 Ld SOIC
M28.3
ISL6524CBZ*
(See Note)
0 to 70
28 Ld SOIC
(Pb-free)
M28.3
ISL6524CBZA*
(See 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 18, 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. 2001-2002, 2004-2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISL6524CBZA | VRM8.5 PWM and Triple Linear Power System Controller |
| ISL6524CBZA-T | VRM8.5 PWM and Triple Linear Power System Controller |
| ISL6524 | Adjustable Precision Shunt Regulator 3-SOT-23 -40 to 85 |
| ISL6524ACB-T | VRM8.5 PWM and Triple Linear Power System Controller |
| ISL6524EVAL1 | VRM8.5 PWM and Triple Linear Power System Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL6524EVAL1 | 功能描述:EVALUATION BOARD VRM8.5 ISL6524 RoHS:否 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - DC/DC 與 AC/DC（離線）SMPS 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:True Shutdown™ 主要目的:DC/DC，步升 輸出及類(lèi)型:1，非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):升壓 頻率 - 開(kāi)關(guān):3MHz 板類(lèi)型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| ISL6525CB | 功能描述:IC REG CTRLR BUCK PWM VM 14-SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤(pán) 包裝:帶卷 (TR) |
| ISL6525CB-T | 功能描述:IC REG CTRLR BUCK PWM VM 14-SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤(pán) 包裝:帶卷 (TR) |
| ISL6525CBZ | 功能描述:電壓模式 PWM 控制器 VTT REG FORVRM 8.5 1 4LD RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| ISL6525CBZ-T | 功能描述:IC REG CTRLR BUCK PWM VM 14-SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無(wú) 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) |
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