DCRIPTION
The MP3202 is a step-up converter digned for driving up to 39 white LEDs (13 strings of 3 LEDs each) from a 5V system rail. The MP3202 us a
current mode, fixed frequency architecture to regulate the LED current, which is measured through an external current sense ristor. Its low 104mV feedback voltage reduc power loss and improv efficiency. The OV pin monitors the output voltage and turns off the converter if an over-voltage condition is prent due to an open circuit condition. The MP3202 includ under-voltage lockout, current limiting and thermal overload protection preventing damage in the event of an output overload. The MP3202 is available in all 6-pin TSOT23 or 8-pin QFN (2mm x 2mm) packag.
FEATUR
• 2.5V to 6V Input Voltage Range
• On Board Power MOSFET
• Driv 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
• Available in TSOT23-6 and QFN8 Packag
APPLICATIONS
• Cell Phon
• Handheld Computers and PDAs
• Dial Still Cameras
• all LCD Displays
