Datasheet > ISL6548ACRZA-T

ISL6548ACRZA-T

更新时间： 2024-11-28 22:23:11

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-T 数据手册

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

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

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

• 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

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.

All other trademarks mentioned are the property of their respective owners.

12 3 4 5 6 7...16

中文翻译

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ISL6548ACRZA-T 替代型号

型号	品牌	替代类型	描述	数据表
ISL6548ACRZA	INTERSIL	完全替代	ACPI Regulator/Controller for Dual Channel DDR Memory Systems

与ISL6548ACRZA-T相关器件

型号	品牌	获取价格	描述	数据表
ISL6548ACRZ-T	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6548CRZ	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6548CRZ	RENESAS	获取价格	DUAL SWITCHING CONTROLLER, 280kHz SWITCHING FREQ-MAX, PQCC28, 6 X 6 MM, MO-220-VJJC, LEAD
ISL6548CRZA	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6548CRZA-T	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6548CRZ-T	RENESAS	获取价格	DUAL SWITCHING CONTROLLER, 280kHz SWITCHING FREQ-MAX, PQCC28, 6 X 6 MM, MO-220-VJJC, LEAD
ISL6548CRZ-T	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6549	INTERSIL	获取价格	Single 12V Input Supply Dual Regulator Synchronous Rectified Buck PWM and Linear Power Con
ISL6549CA	INTERSIL	获取价格	Single 12V Input Supply Dual Regulator Synchronous Rectified Buck PWM and Linear Power Con
ISL6549CA	RENESAS	获取价格	SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO16, 0.150 INCH, PLASTIC, QSOP-16

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