Datasheet > ISL6537CRZ

ISL6537CRZ

更新时间： 2024-11-27 22:57:23

品牌	Logo	应用领域
英特矽尔 - INTERSIL		稳压器开关双倍数据速率控制器
页数	文件大小	规格书
15页	559K
描述
ACPI Regulator/Controller for Dual Channel DDR Memory Systems

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替代型号

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ISL6537CRZ 数据手册

ISL6537

Data Sheet

February 8, 2005

FN9142.4

ACPI Regulator/Controller for

Features

• Generates 4 Regulated Voltages

Dual Channel DDR Memory Systems

The ISL6537 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

- Synchronous Buck PWM Controller for DDR V

DDQ

- 3A Integrated Sink/Source Linear Regulator with

Accurate VDDQ/2 Divider Reference for DDR V

- LDO Regulator for GMCH Core

supply V

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

DDQ

state, a fully integrated sink-source regulator generates an

accurate (V /2) high current V voltage without the

- LDO Regulator for CPU/GMCH V Termination

DDQ TT

• ACPI compliant sleep state control

need for a negative supply. A buffered version of the V

DDQ

reference is provided as V

. Two LDO controllers are also

• Glitch-free Transitions During State Changes

REF

integrated for the GMCH core voltage regulation and for the

• Integrated V

Buffer

REF

GMCH and CPU V termination voltage regulation.

• PWM Controller Drives Low Cost N-Channel 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

• 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

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

• Under and Over-voltage Monitoring on All Outputs

• OCP on the Switching Regulator

indicates that the GMCH and CPU V termination voltage

is within spec and operational.

• Integrated Thermal Shutdown Protection

• Pb-Free Available (RoHS Compliant)

Each output is monitored for undervoltage events. The

switching regulator also has overvoltage and over current

protection. Thermal shutdown is integrated.

Applications

•

Single and Dual Channel DDR Memory Power Systems in

ACPI compliant PCs

Pinout

ISL6537 (6x6 QFN)

TOP VIEW

•

Graphics cards - GPU and memory supplies

• ASIC power supplies

• Embedded processor and I/O supplies

• DSP supplies

28 27 26 25 24 23 22

5VSBY

S3#

21 DRIVE4

REFADJ4

DRIVE3

Ordering Information

P12V

TEMP. RANGE

PKG.

PART NUMBER

(°C)

PACKAGE

DWG. #

GND

18 FB3

ISL6537CR

0 to 70

28 Ld 6x6 QFN L28.6x6

DDR_VTT

VDDQ

FB4

ISL6537CRZ

(See Note)

28 Ld 6x6 QFN L28.6x6

(Pb-free)

16 COMP

15 FB

*Add “-T” suffix to part number for tape and reel packaging.

11 12 13 14

NOTE: Intersil Pb-free products employ special Pb-free material

sets; molding compounds/die attach materials and 100% matte tin

plate termination finish, which are RoHS compliant and compatible

with both SnPb and Pb-free soldering operations. Intersil Pb-free

products are MSL classified at Pb-free peak reflow temperatures that

meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143 | 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...15

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ISL6537CRZ 替代型号

型号	品牌	替代类型	描述	数据表
ISL6537CRZ-T	INTERSIL	完全替代	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6537CR-T	INTERSIL	完全替代	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6537CR	INTERSIL	类似代替	ACPI Regulator/Controller for Dual Channel DDR Memory Systems

与ISL6537CRZ相关器件

型号	品牌	获取价格	描述	数据表
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
ISL6539CA-T	INTERSIL	获取价格	Wide Input Range Dual PWM Controller with DDR Option
ISL6539CAZ	INTERSIL	获取价格	Wide Input Range Dual PWM Controller with DDR Option
ISL6539CAZ-T	INTERSIL	获取价格	Wide Input Range Dual PWM Controller with DDR Option
ISL6539IA	INTERSIL	获取价格	Wide Input Range Dual PWM Controller with DDR Option
ISL6539IA-T	INTERSIL	获取价格	Wide Input Range Dual PWM Controller with DDR Option
ISL6539IAZ	INTERSIL	获取价格	Wide Input Range Dual PWM Controller with DDR Option

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