STCF05 is a high efficiency power supply solution from STMicroelectronics to drive multiple flash LEDs in camera phones, PDAs and other hand-held devices. The synchronous boost topology with output current control guarantees the proper LED current over all possible conditions of battery level and LED forward voltage. All the functions of the device are controlled through the I²C bus that allows to reduce the circuit design complexity.
The STCF05 is a high power white LED driver featuring a boost DC-DC converter with synchronous rectification. It is designed to drive two power white LEDs in series with a current up to 400 mA. The device operates with an input voltage range of 2.5 V to 5.5 V and requires only three external components.
| Output current | up to 400 mA |
|---|---|
| Input voltage range | 2.5 V to 5.5 V |
| Operating ambient temperature | -40 to 85 °C |
| Package | 3 x 3 mm TFBGA25 |
| Switching frequency | 1.8 MHz |
The device drives 2 power white LEDs in series with a current up to 400 mA.
The input voltage range is 2.5 V to 5.5 V.
The PWM control operates at a fixed frequency of 1.8 MHz.