MP3309
Description
The MP3309 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.
Key Features
- 2.7V to 5.5V Input Voltage
- Analog and PWM Dimming
- Programmable Switching Frequency
- Low 200mV Feedback Voltage with ±1% Accuracy at Room Temperature
- Internal Soft Start
- Under-Voltage Lockout (UVLO), Thermal Shutdown, and Over-Current Protection (OCP)
- Available in a QFN-10 (1.4mmx1.8mm) Package
