参数资料
| 型号： | ISL6548ACRZA-T |
| 厂商： | Intersil |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG/CTLR ACPI DUAL DDR 28QFN |
| 标准包装： | 1 |
| 应用： | 存储器，DDR/DDR2 稳压器 |
| 电流 - 电源： | 7mA |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-VQFN 裸露焊盘 |
| 供应商设备封装： | 28-QFN（6x6） |
| 包装： | 标准包装 |
| 产品目录页面： | 1243 (CN2011-ZH PDF) |
| 其它名称： | ISL6548ACRZA-TDKR |
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ISL6548A
Data Sheet
January 3, 2006
FN9189.2
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
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, 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
相关PDF资料 |
PDF描述 |
|---|---|
| ISL6548CRZA | IC REG/CTRLR ACPI DUAL DDR 28QFN |
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| ISL6553CB-T | IC REG CTRLR BUCK PWM 16-SOIC |
| ISL6554CB-T | IC PWM CORE VOLTAGE REG 20-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6548CRZA | 功能描述:电压模式 PWM 控制器 W/ANNEAL 4-IN-1G FOR DDR/I915/925 RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| ISL6548CRZA-T | 功能描述:电压模式 PWM 控制器 W/ANNEAL 4-IN-1G FOR DDR/I915/925 RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| ISL6549CA | 功能描述:IC REG DL BCK/LINEAR 16-QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 + 切换式 系列:- 标准包装:2,500 系列:- 拓扑:降压（降压）同步（3），线性（LDO）（2） 功能:任何功能 输出数:5 频率 - 开关:300kHz 电压/电流 - 输出 1:控制器 电压/电流 - 输出 2:控制器 电压/电流 - 输出 3:控制器 带 LED 驱动器:无 带监控器:无 带序列发生器:是 电源电压:5.6 V ~ 24 V 工作温度:-40°C ~ 85°C 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* |
| ISL6549CA-T | 功能描述:IC REG DL BCK/LINEAR 16-QSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 + 切换式 系列:- 标准包装:2,500 系列:- 拓扑:降压（降压）同步（3），线性（LDO）（2） 功能:任何功能 输出数:5 频率 - 开关:300kHz 电压/电流 - 输出 1:控制器 电压/电流 - 输出 2:控制器 电压/电流 - 输出 3:控制器 带 LED 驱动器:无 带监控器:无 带序列发生器:是 电源电压:5.6 V ~ 24 V 工作温度:-40°C ~ 85°C 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* |
| ISL6549CAZA | 功能描述:IC REG DL BCK/LINEAR 16-QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 + 切换式 系列:- 标准包装:2,500 系列:- 拓扑:降压（降压）同步（3），线性（LDO）（2） 功能:任何功能 输出数:5 频率 - 开关:300kHz 电压/电流 - 输出 1:控制器 电压/电流 - 输出 2:控制器 电压/电流 - 输出 3:控制器 带 LED 驱动器:无 带监控器:无 带序列发生器:是 电源电压:5.6 V ~ 24 V 工作温度:-40°C ~ 85°C 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* |
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