MP3308 Description
The MP3308 is a monolithic step-up converter designed to drive arrays of white LEDs from a 3.3V input or a single-cell lithium-ion battery. The MP3308 uses fixed-frequency currentmode architecture to regulate the LED current, which is measured through an external current sense resistor. Its low 200mV feedback voltage reduces power loss and improves efficiency.
MP3308 Key Features
- Internal Power MOSFET
- Drives Up to 10 White LEDs in Series
- 2.2MHz Fixed Switching Frequency
- Up to 88% Efficiency
- Dual PWM-Dimming Input Control
- Internal 1.3A Current Limit
- ±3% True PWM Dimming Duty Accuracy
- Adjustable Over-Voltage Protection
- Low 200mV Feedback Voltage
- Under-Voltage Lockout, Short-Circuit