參數(shù)資料
型號(hào)： ISL6548A
廠商： Intersil Corporation
元件分類(lèi)： 基準(zhǔn)電壓源/電流源
英文描述： 500-mA Peak Step-Up, Step-Down, Inverting Switching Voltage Regulator 14-PDIP 0 to 70
中文描述： ACPI的穩(wěn)壓器/雙通道DDR內(nèi)存控制器系統(tǒng)
文件頁(yè)數(shù)： 1/16頁(yè)
文件大?。?/td> 494K
代理商： ISL6548A
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2004, 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
PRELIMINARY
ISL6548A
ACPI Regulator/Controller for
Dual Channel DDR Memory Systems
The ISL6548A 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 to
supply V
DDQ
during S0/S1 and S3 states. 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 second PWM controller, which
requires external MOSFET drivers, is available for regulation
of the GMCH Core voltage. A sink/source LDO controller is
also integrated for the CPU/GMCH V
TT
termination voltage
regulation. Another LDO is available for the ICH7 voltage.
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. The switching
regulator provides 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.
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 VIDPGD signal
indicates that the GMCH and CPU V
TT
termination voltage
is within spec and operational.
All outputs, except V
ICH7
, have undervoltage protection. The
switching regulator also has overvoltage and overcurrent
protection. Thermal shutdown is integrated.
Features
Generates 5 Regulated Voltages
- Synchronous Buck PWM Controller for DDR V
DDQ
- 3A Integrated Sink/Source Linear Regulator with
Accurate V
DDQ
/2 Divider Reference for DDR V
TT
- PWM Regulator for GMCH Core
- Sink/Source LDO Regulator for CPU/GMCH V
TT
Termination
- LDO Regulator for ICH7
ACPI compliant sleep state control
Glitch-free Transitions During State Changes
V
DDQ
PWM Controller Drives Low Cost N-Channel
MOSFETs
250kHz Constant Frequency Operation
- Both PWM controllers are Phase Shifted 180°
Tight Output Voltage Regulation
- All Outputs:
±
2% Over Temperature
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 Overvoltage Monitoring
OCP on the V
DDQ
Switching Regulator
Integrated Thermal Shutdown Protection
Pb-Free Plus Anneal Available (RoHS Compliant)
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
Data Sheet
FN9189.1
July 22, 2005
相關(guān)PDF資料
PDF描述
ISL6548ACRZ 500-mA Peak Step-Up, Step-Down, Inverting Switching Voltage Regulator 14-PDIP 0 to 70
ISL6548ACRZ-T ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6548ACRZA 500-mA Peak Step-Up, Step-Down, Inverting Switching Voltage Regulator 14-SO 0 to 70
ISL6548CRZA-T ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6548 ACPI Regulator/Controller for Dual Channel DDR Memory Systems
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISL6548A-6506EVAL1Z 功能描述:EVALUATION BOARD ISL6548A-6506 RoHS:是 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - DC/DC 與 AC/DC（離線(xiàn)）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
ISL6548ACRZA 功能描述:電壓模式 PWM 控制器 W/ANNEAL 5-IN-1G FOR DDR/I915/925LAKEPORT 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
ISL6548ACRZA-T 功能描述:電壓模式 PWM 控制器 W/ANNEAL 5-IN-1G FOR DDR/I915/925LAKEPORT 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
ISL6548CRZA 功能描述:電壓模式 PWM 控制器 W/ANNEAL 4-IN-1G FOR DDR/I915/925 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
ISL6548CRZA-T 功能描述:電壓模式 PWM 控制器 W/ANNEAL 4-IN-1G FOR DDR/I915/925 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
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