LM3646 Datasheet, Texas Instruments

*1 High-Side Current Sources Allowing for Grounded LED Cathode for Improved Thermal Management
* > 85% Efficiency in Torch and Flash Modes
* Small Solution Si.

Camera Phone LED Flash and Torch 3 Description The LM3646 utilizes a 4-MHz fixed-frequency synchronous boost converter .

The LM3646 utilizes a 4-MHz fixed-frequency synchronous boost converter to provide power to dual 1.5-A constant current LED sources. The high-side current sources allow for grounded cathode LED operation providing flash current up to 1.5 A total. An .