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SD3303

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The SD3303 is available in the 6-lead TSOT26 package.

The SD3303 is targeted to be used for driving loads up to 1A from a

The SD3303 is a set-up DC-DC converter that delivers a regulated

July 2013

3W HIGH POWER WHITE LED DRIVER

Description

output current. The device switches at a 1.0MHz constant frequency,

allowing for the use of small value external inductor and ceramic

capacitors.

two-cell alkaline battery. The LED current can be programmed by the

pin (FB) and ground. A low 95mV feedback voltage reduces the

power loss in the Rs for better efficiency. With its internal 2A, 100m

Ω

NMOS switch, the device can provide high efficiency even at heavy

load are completely disconnected and the current consumption is

reduced to less than 1µA.

Features



LED Power Efficiency: up to 90%

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1MHz Switching Frequency

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Uses Small, Low Profile External Components

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Over Temperature Protection

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Low Profile TSOT26 Package

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Pb-Free Package

Pin Assignments

Applications

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White LED Torch (Flashlight)

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White LED Camera Flash

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DSC(Digital Still Camera)Flash

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Cellular Camera Phone Flash

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PDA Camera Flash

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Camcorder Torch(Flashlight) Lamp

Typical Applications Circuit

Top View

TSOT26

SD3303

Shouding