TPS61052 Description
The TPS6105x device is based on a high-frequency synchronous-boost topology with constant current sink to drive single white LEDs. The device uses an inductive fixed-frequency PWM control scheme using small external ponents, minimizing input ripple current. The 2-MHz switching frequency allows the use of small and low profile 2.2-μH inductors.
TPS61052 Key Features
- 1 Four Operational Modes
- Torch and Flash up to ILED = 1200 mA
- Voltage-Regulated Boost Converter: 4.5 V, 5 V, and 5.25 V
- Shutdown: 0.3 μA (Typical)
- Total Solution Circuit Area < 25 mm2
- Up to 96% Efficiency
- I2C-patible Interface up to 400 kbps
- Integrated LED Turnon Safety Timer
- Zero Latency TX-Masking Input (TPS61050)
- Hardware Voltage Mode Selection Input
TPS61052 Applications
- Camera White LED Torch/Flash for Cell Phones, Smart-Phones and PDAs