LM3552
Overview
The LM3551 and LM3552 are fixed frequency, current mode step-up DC/DC converters with two integrated NFETs that can be used for precision LED brightness control. The devices are capable of driving loads up to 1A from a single-cell Li-Ion battery.
- 2 Up to 1A Total Drive Current
- Flash Timeout Protection
- Independent Torch/Flash/Shutdown Modes
- LED Disconnect in Shutdown
- Programmable Soft-Start Limits Inrush Current
- Over-Voltage Protection
- Wide Voltage Range 2.7 to 5.5V
- 1.25MHz Constant Switching Frequency
- Small, Low Profile Package, Non-Pullback WSON(4mm x 4mm)
