Datasheet > ISL6537ACRZA

ISL6537ACRZA

更新时间： 2024-11-28 05:39:43

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	407K
描述
ACPI Regulator/Controller for Dual Channel DDR Memory Systems

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ISL6537ACRZA 数据手册

ISL6537A

Data Sheet

July 18, 2007

FN9143.5

ACPI Regulator/Controller for

Features

Dual Channel DDR Memory Systems

• Generates 5 Regulated Voltages

- Synchronous Buck PWM Controller for DDR V

The ISL6537A 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 VDDQ/2 Divider Reference for DDR V

supply V

during S0/S1 and S3 states. During S0/S1 state,

DDQ

- PWM Regulator for GMCH Core

a fully integrated sink-source regulator generates an accurate

(V /2) high current V voltage without the need for a

- LDO Regulator for CPU/GMCH V Termination

DDQ

- LDO Regulator for DAC

negative supply. A buffered version of the V

/2 reference is

DDQ

provided as V

. A second PWM controller, which requires

REF

• ACPI Compliant Sleep State Control

• Glitch-Free Transitions During State Changes

external MOSFET drivers, is available for regulation of the

GMCH Core voltage. An LDO controller is also integrated for

the CPU V termination voltage regulation and the DAC.

• Integrated V

Buffer

REF

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.

• V

DDQ

MOSFETs

PWM Controller Drives Low Cost N-Channel

• 250kHz Constant Frequency Operation

- Both PWM Controllers are Phase Shifted 180°

• Tight Output Voltage Regulation

- All Outputs: ±2% Over Temperature

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

• 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

indicates that the GMCH and CPU V termination voltage

is within spec and operational.

All outputs, except VDAC, have undervoltage protection.

The switching regulator also has overvoltage and

overcurrent protection. Thermal shutdown is integrated.

• OCP on the V

DDQ

Switching Regulator

• Integrated Thermal Shutdown Protection

Pinout

ISL6537A (6X6 QFN)

• Pb-Free Plus Anneal Available (RoHS Compliant)

TOP VIEW

Applications

•

Single and Dual Channel DDR Memory Power Systems in

ACPI Compliant PCs

28 27 26 25 24 23 22

5VSBY

S3#

DRIVE3

FB3

•

Graphics Cards - GPU and Memory Supplies

• ASIC Power Supplies

P12V

PWM4

• Embedded Processor and I/O Supplies

• DSP Supplies

GND

18 FB4

DDR_VTT

VDDQ

COMP4

16 COMP

15 FB

10 11 12 13 14

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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ISL6537ACRZA 替代型号

型号	品牌	替代类型	描述	数据表
ISL6537ACRZ-T	INTERSIL	类似代替	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6537ACR-T	INTERSIL	类似代替	ACPI Regulator/Controller for Dual Channel DDR Memory Systems

与ISL6537ACRZA相关器件

型号	品牌	获取价格	描述	数据表
ISL6537ACRZA-T	RENESAS	获取价格	3.3A DUAL SWITCHING CONTROLLER, 280kHz SWITCHING FREQ-MAX, PQCC28, 6 X 6 MM, ROHS COMPLIAN
ISL6537ACRZ-T	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6537ACRZ-TR5160	RENESAS	获取价格	Dual Switching Controller
ISL6537CR	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6537CR-T	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6537CRZ	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6537CRZ-T	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6537CRZ-TR5160	RENESAS	获取价格	Switching Controller
ISL6539	INTERSIL	获取价格	Wide Input Range Dual PWM Controller with DDR Option
ISL6539CA	INTERSIL	获取价格	Wide Input Range Dual PWM Controller with DDR Option

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