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參數資料
| 型號： | ISL6532ACRZ-T |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | PWM Control Circuit 16-SSOP 0 to 70 |
| 中文描述： | 3 A SWITCHING CONTROLLER, 280 kHz SWITCHING FREQ-MAX, PQCC28 |
| 封裝： | 6 X 6 MM, ROHS COMPLIANT, PLASTIC, MO-220VJJC, QFN-28 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 504K |
| 代理商： | ISL6532ACRZ-T |
1
ACPI Regulator/Controller for
Dual Channel DDR Memory Systems
The ISL6532A provides a complete ACPI compliant power
solution for up to 4 DIMM dual channel DDR/DDR2 Memory
systems. Included are both a synchronous buck controller
and integrated LDO to supply V
DDQ
with high current during
S0/S1 states and standby current during S3 state. During
S0/S1 state, a fully integrated sink-source regulator
generates an accurate (V
DDQ
/2) high current V
TT
voltage
without the need for a negative supply. A buffered version of
the V
DDQ
/2 reference is provided as V
REF
. An LDO
controller is also integrated for AGP core voltage regulation.
The switching PWM controller drives two N-Channel
MOSFETs in a synchronous-rectified buck converter
topology. The synchronous buck converter uses voltage-
mode control with fast transient response. Both the switching
regulator and standby LDO provide a maximum static
regulation tolerance of
±
2% over line, load, and temperature
ranges. The output is user-adjustable by means of external
resistors down to 0.8V.
Switching memory core output between the PWM regulator
and the standby LDO during state transitions is
accomplished smoothly via the internal ACPI control
circuitry. The NCH signal provides synchronized switching of
a backfeed blocking switch during the transitions eliminating
the need to route 5V Dual to the memory supply.
An integrated soft-start feature brings all outputs into
regulation in a controlled manner when returning to S0/S1
state from any sleep state. During S0 the PGOOD signal
indicates V
TT
is within spec and operational.
Each output is monitored for under and over-voltage events.
The switching regulator has over current protection. Thermal
shutdown is integrated.
Pinout
ISL6532A (QFN)
TOP VIEW
Features
Generates 3 Regulated Voltages
- Synchronous Buck PWM Controller with Standby LDO
- 3A Integrated Sink/Source Linear Regulator with
Accurate VDDQ/2 Divider Reference.
- Glitch-free Transitions During State Changes
- LDO Regulator for 1.5V Video and Core voltage
ACPI compliant sleep state control
Integrated V
REF
Buffer
PWM Controller Drives Low Cost N-Channel MOSFETs
250kHz Constant Frequency Operation
Tight Output Voltage Regulation
- All Outputs:
±
2% Over Temperature
5V or 3.3V Down Conversion
Fully-Adjustable Outputs with Wide Voltage Range: Down
to 0.8V supports DDR and DDR2 Specifications
Simple Single-Loop Voltage-Mode PWM Control Design
Fast PWM Converter Transient Response
Under and Over-voltage Monitoring on All Outputs
OCP on the Switching Regulator
Integrated Thermal Shutdown Protection
QFN Package Option
- QFN Compliant to JEDEC PUB95 MO-220 QFN - Quad
Flat No Leads - Product Outline
- QFN Near Chip Scale Package Footprint; Improves
PCB Efficiency, Thinner in Profile
Pb-free available
Applications
Single and Dual Channel DDR Memory Power Systems in
ACPI compliant PCs
Graphics cards - GPU and memory supplies
ASIC power supplies
Embedded processor and I/O supplies
DSP supplies
GNDP
5VSBY
GNDQ
GNDQ
VTT
VTT
VDDQ
PGOOD
PHASE
DRIVE2
FB2
GNDA
COMP
FB
G
L
U
P
S
S
N
V
V
V
P
O
V
V
1
2
3
4
5
6
7
21
28
27
26
25
24
23
22
8
9
10
11
12
13
14
GND
29
20
19
18
17
16
15
Ordering Information
PART NUMBER
TEMP. RANGE
(
o
C)
PACKAGE
PKG.
DWG. #
ISL6532ACR
0 to 70
28 Ld 6x6 QFN
L28.6x6
ISL6532ACRZ
(See Note)
0 to 70
28 Ld 6x6 QFN
(Pb-free)
L28.6x6
*Add “-T” suffix to part number for tape and reel packaging.
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 registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2002-2004. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL6532A
Data Sheet
August 2004
FN9099.3
相關PDF資料 |
PDF描述 |
|---|---|
| ISL6532BCRZ-T | ACPI Regulator/Controller for Dual Channel DDR Memory Systems |
| ISL6532BCR-T | ACPI Regulator/Controller for Dual Channel DDR Memory Systems |
| ISL6532B | PWM Control Circuit 16-SSOP 0 to 70 |
| ISL6532BCR | PWM Control Circuit 16-SSOP 0 to 70 |
| ISL6532BCRZ | PWM Control Circuit 16-SOIC 0 to 70 |
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| ISL6532ACRZ-TK | 功能描述:DC/DC 開關控制器 3-IN-1 DDRG W/NO OC SPRINGDALE MBS 28L RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| ISL6532AEVAL1 | 功能描述:EVALUATION BOARD 1 ISL6532A RoHS:否 類別:編程器，開發系統 >> 評估板 - DC/DC 與 AC/DC（離線）SMPS 系列:- 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:True Shutdown™ 主要目的:DC/DC，步升 輸出及類型: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 穩壓器拓撲結構:升壓 頻率 - 開關:3MHz 板類型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| ISL6532AIRZ | 功能描述:DC/DC 開關控制器 3-IN-1 DDRG W/NO OC FOR SPRINGDALE MBS RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| ISL6532AIRZ-T | 功能描述:DC/DC 開關控制器 3-IN-1 DDRG W/NO OC SPRINGDALE MBS 28L RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| ISL6532BCR | 功能描述:IC REG/CTRLR ACPI DUAL DDR 20QFN RoHS:否 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 應用說明:Ultrasound Imaging Systems Application Note 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:37 系列:- 應用:醫療用超聲波成像，聲納 電流 - 電源:- 電源電壓:2.37 V ~ 6 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:56-WFQFN 裸露焊盤 供應商設備封裝:56-TQFN-EP（8x8） 包裝:管件 |
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