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Intersil Electronic Components Datasheet

ISL6571 Datasheet

Complementary MOSFET Driver and Synchronous Half-Bridge Switch

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®
Data Sheet
April 18, 2005
ISL6571
FN9082.4
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
TEMP.
PART NUMBER RANGE (°C)
PACKAGE
PKG.
DWG. #
ISL6571CR*
0 to 70 68 Ld 10x10 QFN L68.10x10A
ISL6571CRZ*
(See Note)
0 to 70
68 Ld 10x10 QFN L68.10x10A
(Pb-free)
ISL6571EVAL1 Evaluation Board
*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.
Features
• Improved Performance over Conventional Synchronous
Buck Converter using Discrete Components
• Optimal Deadtime Provided by Adaptive Shoot-Through
• Switching Frequency up to 1MHz
- High-Bandwidth, Fast Transient Response
- Small, Low Profile Converters
• Reduced Connection Parasitics between Discrete
Components
- Low Electromagnetic Emissions
• Low Profile, Low Thermal Impedance Packaging
- High Power Density Applications
• QFN Package:
- Compliant to JEDEC PUB95 MO-220
QFN - Quad Flat No Leads - Package Outline
- Near Chip Scale Package footprint, which improves
PCB efficiency and has a thinner profile
• Pb-Free Available (RoHS Compliant)
Applications
Multiphase Power Regulators
Low-Voltage Switchmode Power Conversion
• High-Density Power Converters
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-352-6832 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2003-2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.


Intersil Electronic Components Datasheet

ISL6571 Datasheet

Complementary MOSFET Driver and Synchronous Half-Bridge Switch

No Preview Available !

Pinout
ISL6571
ISL6571 (QFN) TOP VIEW
PHASE
PHASE
PHASE
PHASE
PHASE
PHASE
PHASE
PHASE
PHASE
PHASE
PHASE
PHASE
PHASE
PHASE
PHASE
PHASE
PHASE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
69
PHASE
71
GND
70
VIN
51 NC
50 GND
49 NC
48 PWM
47 BOOT
46 GND
45 PHASE
44 VIN
43 VIN
42 VIN
41 VIN
40 VIN
39 VIN
38 VIN
37 VIN
36 VIN
35 VIN
2 FN9082.4


Part Number ISL6571
Description Complementary MOSFET Driver and Synchronous Half-Bridge Switch
Maker Intersil Corporation
Total Page 11 Pages
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Intersil Corporation





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