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Date:2/14/06

SP6132H High Voltage, Synchronous PWM Controller

© Copyright 2006 Sipex Corporation

FEATURES

■ 3V to 28V Step Down Achieved Using Dual Input

■ On-Board 1.5Ω sink (2Ω source) NFET Drivers

■ Up to 30A Output Capability

■ Highly Integrated Design, Minimal Components

■ Short Circuit Protection with Auto-Restart

■ Wide BW Amp Allows Type II or III Compensation

■ Programmable Soft Start

■ Fast Transient Response

■ High Efficiency: Greater than 95% Possible

■ A Synchronous Start-Up into a Pre-Charged Output

■ Small 10-Pin MSOP Package

■ U.S. Patent #6,922,041

DESCRIPTION

The SP6132H is a synchronous step-down switching regulator controller optimized for high efficiency. The part is

voltage minimizes power dissipation in the part. The SP6132H is designed to drive a pair of external NFETs using a

fixed 300kHz frequency, PWM voltage mode architecture. Protection features include UVLO, thermal shutdown and

output short circuit protection. The SP6132H is available in the cost and space saving 10-pin MSOP

.

TYPICAL APPLICATION CIRCUIT

4

47nF

2.7µH @ 12A

47µF

68.1k, 1%

2.5V

10 A

31.6k, 1%

10µF

221k, 1%

100k, 1%

100pF

1500pF

22pF

27.4k, 1%

FDS7088N3

4

MBR0530

SP6132H

VCC

GL

GND

VFB

COMP

BST

GH

SWN

SS

UVIN

47µF

4.64k, 1%

220pF

22µF

22µF

GND

VIN

3.0 - 28V

5.11, 1%

1µF

FDS7088N3

0.1µF

GL

GND

COMP

SP6132H

10 Pin MSOP

1

2

3

4

5

10

9

8

7

6

BST

GH

SWN

SS

UVIN

Now Available in Lead Free Packaging

APPLICATIONS

■ Wireless Base Station

■ Automotive

■ Industrial

■ Power Supply

High Voltage, 300KHz Synchronous PWM Controller

SP6132H