isl6571 Intersil Corporation, isl6571 Datasheet

isl6571

Manufacturer Part Number

isl6571

Description

Complementary Mosfet Driver And Synchronous Half-bridge Switch

Manufacturer

Intersil Corporation

Datasheet

1.ISL6571.pdf (11 pages)

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Complementary MOSFET Driver and

Synchronous Half-Bridge Switch

The Intersil ISL6571 provides a new approach for

implementing a synchronous rectified buck switching

regulator. The ISL6571 replaces two power MOSFETs, a

Schottky diode, two gate drivers and synchronous control

circuitry. Its main applications address high-density power

conversion circuits including multiphase-topology computer

microprocessor core power regulators, ASIC and memory

array regulators, etc. Another useful feature of the ISL6571

is the compatibility with three-state input control: left open,

the PWM input turns off both output drives. The ISL6571

operates in continuous conduction mode reducing EMI

constraints and enabling high bandwidth operation.

Ordering Information

ISL6571CR*

ISL6571CRZ*

(See Note)

ISL6571EVAL1

*Add “-T” suffix for tape and reel.

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.

PART NUMBER

Evaluation Board

RANGE (°C)

0 to 70

TEMP.

68 Ld 10x10 QFN L68.10x10A

68 Ld 10x10 QFN

(Pb-free)

PACKAGE

Data Sheet

L68.10x10A

DWG. #

PKG.

1-888-INTERSIL or 1-888-352-6832

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

Features

• Improved Performance over Conventional Synchronous

• Optimal Deadtime Provided by Adaptive Shoot-Through

• Switching Frequency up to 1MHz

• Reduced Connection Parasitics between Discrete

• Low Profile, Low Thermal Impedance Packaging

• QFN Package:

• Pb-Free Available (RoHS Compliant)

Applications

• Multiphase Power Regulators

• Low-Voltage Switchmode Power Conversion

• High-Density Power Converters

Buck Converter using Discrete Components

- High-Bandwidth, Fast Transient Response

- Small, Low Profile Converters

Components

- Low Electromagnetic Emissions

- High Power Density Applications

- Compliant to JEDEC PUB95 MO-220

- Near Chip Scale Package footprint, which improves

QFN - Quad Flat No Leads - Package Outline

PCB efficiency and has a thinner profile

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

April 18, 2005

Intersil (and design) is a registered trademark of Intersil Americas Inc.

ISL6571

FN9082.4

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