MP3309C Description
The MP3309C is a WLED step-up converter for 2.7V to 5.5V input that uses peak current mode to regulate the LED current sensed through an external low-side resistor. The 200mV feedback voltage and synchronous rectification reduces power loss and reduces PCB space requirements. For non-synchronous mode, setting an internal register can disable the rectifier MOSFET to save driver losses.
MP3309C Key Features
- 2.7V to 5.5V Input Voltage
- Analog and PWM Dimming
- Selectable Synchronous or Non
- 400kHz I2C-patible Interface
- Digitally Set LED Current
- Programmable Switching Frequency
- Programmable Open Load Protection Point
- Low 200mV Feedback Voltage with ±1%
- Software Enable Function
- UVLO, Thermal Shutdown