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 200m V feedback voltage and synchronous rectification reduces power loss and reduces PCB space requirements.
The MP3309 features a programmable switching frequency to optimize efficiency. It supports both analog and PWM dimming.
In addition, the MP3309 has LED open protection, cycle-by-cycle current limit protection, Under voltage protection and thermal shutdown protection
.
FEATURES
- 2.7V to 5.5V Input Voltage
- Analog and PWM Dimming
- Programmable Switching Frequency
- Low 200m V 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
APPLICATIONS
- Feature
Phones and Smart Phones
- Tablets
- <10in Video Displays
All MPS parts are lead-free,...
