Datasheet Summary
400mA Single Wire Camera LED Charge Pump
Features
- Low Noise Constant-Frequency Operation
- Multi-Mode Operation: 1x or 2x Boost Mode
- Automatic Mode Switching
- High Output Current: 150mA (Continuous), 400mA
(Pulsed) From Li-Ion/Polymer Input
- 2-Second Flash Current Timeout for LED Protection
- Automatic Soft-Start
- Output Disconnect
- No Inductors
- 220mΩ Internal High Side Current Sense Resistor
- Single Resistor Programming Capability
- Tiny Application Circuit (3mm × 2mm DFN Package,
All ponents < 1mm High)
APPLICATIONS
- LED Torch/Flash Supply for DSCs/Cellphones
DESCRIPTION
The LTC®3218 is a low-noise, high-current charge pump DC/DC converter capable of driving high...