LM3553 Datasheet (Texas Instruments) - 1.2A Dual Flash LED Driver

LM3553, 1.2A Dual Flash LED Driver

The LM3553 is a fixed frequency, current mode stepup DC/DC converter with two regulated current sinks.

The device is capable of driving loads up to 1.2A from a single-cell Li-Ion battery.

The LM3553 includes a TX pin that forces Torch mode during a flash event allowing for synchronization between th

LM3553 Features

* 1

* 2 Accurate and Programmable LED Current up to 1.2A in 128 Steps

* Total Solution Size < 30mm2

* 90% Peak Efficiency

* Drives 2 LEDs in Series with 1.2A from 5V Input

* Drives 2 LEDs in Series with 600mA from 3.0V Input

* Drives 1 LED with 1.2A from