Datasheet > ISL6532B

ISL6532B

更新时间： 2024-11-29 22:57:23

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
15页	361K
描述
ACPI Regulator/Controller for Dual Channel DDR Memory Systems

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ISL6532B 数据手册

ISL6532B

Data Sheet

July 2004

FN9120.3

ACPI Regulator/Controller for

Features

Dual Channel DDR Memory Systems

• Generates 2 Regulated Voltages

The ISL6532B 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

- Synchronous Buck PWM Controller with Standby LDO

- 3A Integrated Sink/Source Linear Regulator with

Accurate V

/2 Divider Reference

DDQ

and integrated LDO to supply V

S0/S1 states and standby current during S3 state. During

Run mode, a fully integrated sink-source regulator generates

with high current during

- Glitch-free Transitions During State Changes

• ACPI Compliant Sleep State Control

DDQ

• Integrated V

REF

Buffer

an accurate (V

/2) high current V voltage without the

DDQ

• PWM Controller Drives Low Cost N-Channel MOSFETs

• 250kHz Constant Frequency Operation

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

DDQ

reference is provided as V

REF

• Tight Output Voltage Regulation

The switching PWM controller drives two N-Channel

MOSFETs in a synchronous-rectified buck converter

- Both Outputs: ±2% Over Temperature

topology. The synchronous buck converter uses voltage-

• 5V or 3.3V Down Conversion

mode control with fast transient response. Both the switching

regulator and integrated standby LDO provide 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.

• 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

• Over Current Protection on V and Under/Over-Voltage

Switching the memory core output between the PWM

regulator and the standby LDO during state transitions is

accomplished smoothly via the internal ACPI control

circuitry. The NCH signal provides synchronized switching of

a backfeed blocking switch during the transitions eliminating

the need to route 5V Dual to the memory supply.

Monitoring of Both Outputs

• Integrated Thermal Shutdown Protection

• QFN Package Option

- QFN Compliant to JEDEC PUB95 MO-220 QFN - Quad

Flat No Leads - Product Outline

- QFN Near Chip Scale Package Footprint; Improves

PCB Efficiency, Thinner in Profile

An integrated soft-start feature brings V

DDQ

into regulation

in a controlled manner when returning to S0/S1 state from

S4/S5 or mechanical off states. During S0 the PGOOD

signal indicates that all supplies are within spec and

operational.

• Pb-free available

Applications

•

Single and Dual Channel DDR Memory Power Systems in

ACPI compliant PCs

Each output is monitored for under and over-voltage events.

Current limiting is included on the V and V

standby

DDQ

regulators. Thermal shutdown is integrated.

•

Graphics cards - GPU and memory supplies

• ASIC power supplies

Pinout

ISL6532B (QFN)

TOP VIEW

• Embedded processor and I/O supplies

• DSP supplies

Ordering Information

20 19 18 17 16

5VSBY

GND

VTT

NCH

TEMP. RANGE

PART NUMBER

( C)

PACKAGE

PKG. DWG. #

PGOOD

GND

ISL6532BCR

0 to 70

20 Ld 6x6 QFN L20.6x6

ISL6532BCRZ

(See Note)

20 Ld 6x6 QFN L20.6x6

(Pb-free)

VTT

COMP

VDDQ

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

NOTE: Intersil Pb-free products employ special Pb-free material sets; molding

compounds/die attach materials and 100% matte tin plate termination finish, which

is 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-020B.

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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与ISL6532B相关器件

型号	品牌	获取价格	描述	数据表
ISL6532BCR	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6532BCR-T	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6532BCRZ	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6532BCRZ-T	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6532C	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6532CCR	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6532CCR-T	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6532CCRZ	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6532CCRZ-T	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems
ISL6532CR	INTERSIL	获取价格	ACPI Regulator/Controller for Dual Channel DDR Memory Systems

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