mp3202-1.3A Fixed Frequency White LED Driver

1.3A Fixed Frequency White LED Driver

• 2.5V to 6V Input Voltage Range
• On Board Power MOSFET
• Drives up to 39 White LEDs at 5V Input
• Up to 92% Efficiency
• Over 1MHz Fixed Switching Frequency
• Open Load Shutdown
• Low 104mV Feedback Voltage
• Soft-Start/PWM Dimming
• UVLO, Thermal Shutdown
• Internal 1.3A Current Limit
• TSOT23-6 Packages

The MP3202 is a step-up converter designed for driving up to 39 white LEDs (13 strings of 3 LEDs each) from a 5V system rail. The MP3202 uses a current mode, fixed frequency architecture to regulate the LED current, which is measured through an external current sense resistor. Its low 104mV feedback voltage reduces power loss and improves efficiency. The OV pin monitors the output voltage and turns off the converter if an over-voltage condition is present due to an open circuit condition.

APPLICATIONS:
• Cell Phones
• Handheld Computers and PDAs
• Digital Still Cameras
• Small LCD Displays