SP7606

12/17/07 rev: A

SP7600

©Copyright 2007 Exar Corporation

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Wide Input Voltage Boost Controller

FEATURES

• Fixed Frequency 1200kHz

Voltage-Mode PWM Operation

• Requires Tiny Inductors and Capacitors

• Adjustable Output Voltage up to 38V

• Up to 85% Efficiency

• Internal Compensation

• Built in current limit

• Low Supply Current

• 8-pin 2x3 DFN

APPLICATIONS

•

White LED Backlighting when combined with SP7615 or SP7616

•

Large LED arrays for general lighting

•

General boost, flyback, or SEPIC converters

GENERAL DESCRIPTION

The SP7606 is a fixed frequency boost controller designed to drive loads up to 38V output

voltage. The SP7606 was developed to be used in conjunction with the SP7616 to drive a wide

range of led chains that require high anode voltages. The ability to disconnect the output

voltage feedback resistors (DD Pin) reduces shutdown current. The high switching frequency

allows the use of tiny external components and saves layout space and cost. The SP7606 is

available in a space-saving 8-pin 2x3 DFN.

TYPICAL APPLICATION SCHEMATIC

Boost converter 12V to 30V

ABSOLUTE MAXIMUM RATINGS

PINOUT

VCC

DD

1

8

2

3

4

5

6

SP7606

SHDN

OC

7

2 x 3

VIN

GND

8 Pin DFN

FB

GATE

Now Available in Lead Free Packaging