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ISL6548ACRZA

更新时间： 2024-01-27 03:50:47
品牌 Logo 应用领域
英特矽尔 - INTERSIL 稳压器双倍数据速率控制器
页数 文件大小 规格书
16页 491K
描述
ACPI Regulator/Controller for Dual Channel DDR Memory Systems

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ISL6548ACRZA 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：QFN包装说明：HVQCCN,
针数：68Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.77模拟集成电路 - 其他类型：DUAL SWITCHING CONTROLLER
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：5.5 V最小输入电压：4.5 V
标称输入电压：5 VJESD-30 代码：S-PQCC-N28
长度：6 mm功能数量：1
端子数量：28最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：HVQCCN封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：1 mm
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：280 kHz温度等级：COMMERCIAL
端子形式：NO LEAD端子节距：0.65 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：6 mmBase Number Matches：1

ISL6548ACRZA 数据手册

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ISL6548A  
®
Data Sheet  
July 22, 2005  
FN9189.1  
PRELIMINARY  
ACPI Regulator/Controller for  
Features  
Dual Channel DDR Memory Systems  
• Generates 5 Regulated Voltages  
- Synchronous Buck PWM Controller for DDR V  
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  
DDQ  
- 3A Integrated Sink/Source Linear Regulator with  
Accurate V /2 Divider Reference for DDR V  
DDQ  
TT  
supply V  
during S0/S1 and S3 states. During S0/S1  
- PWM Regulator for GMCH Core  
- Sink/Source LDO Regulator for CPU/GMCH V  
Termination  
DDQ  
state, a fully integrated sink-source regulator generates an  
accurate (V /2) high current V voltage without the  
TT  
DDQ TT  
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 termination voltage  
regulation. Another LDO is available for the ICH7 voltage.  
- LDO Regulator for ICH7  
• ACPI compliant sleep state control  
• Glitch-free Transitions During State Changes  
TT  
• V  
PWM Controller Drives Low Cost N-Channel  
DDQ  
MOSFETs  
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.  
• 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  
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  
• Simple Single-Loop Voltage-Mode PWM Control Design  
• Fast PWM Converter Transient Response  
• Under and Overvoltage Monitoring  
indicates that the GMCH and CPU V termination voltage  
TT  
is within spec and operational.  
• OCP on the V  
DDQ  
Switching Regulator  
All outputs, except V  
switching regulator also has overvoltage and overcurrent  
protection. Thermal shutdown is integrated.  
, have undervoltage protection. The  
ICH7  
• 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  
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  
1
All other trademarks mentioned are the property of their respective owners.  
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