1

®

FN9075.7

ISL6207

High Voltage Synchronous Rectified Buck

MOSFET Driver

The ISL6207 is a high frequency, dual MOSFET driver,

optimized to drive two N-Channel power MOSFETs in a

synchronous-rectified buck converter topology in mobile

computing applications. This driver, combined with an Intersil

Multi-Phase Buck PWM controller, such as ISL6223, ISL6215,

and ISL6216, forms a complete single-stage core-voltage

regulator solution for advanced mobile microprocessors.

The ISL6207 features 4A typical sink current for the lower gate

driver. The 4A typical sink current is capable of holding the

lower MOSFET gate during the Phase node rising edge to

prevent the shoot-through power loss caused by the high dv/dt

of the Phase node. The operation voltage matches the 30V

breakdown voltage of the MOSFETs commonly used in mobile

computer power supplies.

The ISL6207 also features a three-state PWM input that,

working together with most of Intersil multiphase PWM

controllers, will prevent a negative transient on the output

voltage when the output is being shut down. This feature

eliminates the Schottky diode, that is usually seen in a

microprocessor power system for protecting the

microprocessor, from reversed-output-voltage damage.

The ISL6207 has the capacity to efficiently switch power

MOSFETs at frequencies up to 2MHz. Each driver is capable

of driving a 3000pF load with a 15ns propagation delay and

less than a 10ns transition time. This product implements

bootstrapping on the upper gate with an internal bootstrap

Schottky diode, reducing implementation cost, complexity,

and allowing the use of higher performance, cost effective

N-Channel MOSFETs. Adaptive shoot-through protection is

integrated to prevent both MOSFETs from conducting

simultaneously.

Features

• Drives Two N-Channel MOSFETs

• Adaptive Shoot-Through Protection

• 30V Operation Voltage

•0.4

Ω On-Resistance and 4A Sink Current Capability

• Supports High Switching Frequency

- Fast Output Rise Time

- Short Propagation Delays

• Three-State PWM Input for Power Stage Shutdown

• Internal Bootstrap Schottky Diode

• 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 Plus Anneal Available (RoHS Compliant)

Applications

Microprocessors

• High Frequency Low Profile DC-DC Converters

• High Current Low Output Voltage DC-DC Converters

• High Input Voltage DC-DC Converters

Related Literature

• Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

(SMDs)”

• Technical Brief TB389 “PCB Land Pattern Design and

Surface Mount Guidelines for QFN Packages”

Ordering Information

PART #

TEMP.

RANGE (°C)

PACKAGE

PKG.

DWG. #

ISL6207CB

-10 to 85

8 Lead SOIC

M8.15

ISL6207CBZ (Note)

-10 to 85

8 Lead SOIC (Pb-free)

M8.15

ISL6207CBZA (Note)

-10 to 85

8 Lead SOIC (Pb-free)

M8.15

ISL6207CR

-10 to 85

8 Lead 3x3 QFN

L8.3x3

ISL6207CRZ (Note)

-10 to 85

8 Lead 3x3 QFN (Pb-free) L8.3x3

ISL6207CRZA (Note)

-10 to 85

8 Lead 3x3 QFN (Pb-free) L8.3x3

ISL6207HBZ (Note)

-10 to 100 8 Ld SOIC (Pb-free)

M8.15

ISL6207HRZ (Note)

-10 to 100 8 Ld 3x3 QFN (Pb-free)

L8.3x3

Add “-T” suffix for tape and reel.

NOTE: Intersil Pb-free plus anneal 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.

Pinouts

ISL6207 (SOIC-8)

TOP VIEW

ISL6207 (QFN)

TOP VIEW

UGATE

BOOT

PWM

GND

1

2

3

4

8

7

6

5

PHASE

EN

VCC

LGATE

7

8

4

3

1

2

6 EN

VCC

BOOT

PWM

5

6

Data Sheet

July 25, 2005

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

1-888-INTERSIL or 1-888-468-3774

Copyright © Intersil Americas Inc. 2003-2005. All Rights Reserved. All other trademarks mentioned are the property of their respective owners.

Intel® is a registered trademark of Intel Corporation. AMD® is a registered trademark of Advanced Micro Devices, Inc.