AP3031

AP3031 WHITE LED STEP-UP CONVERTER Description The DIODES™ AP3031 is an inductor-based DC/DC boost converter designed to drive LED arrays. 1.4A switching current allows AP3031 to be used in different 7' to 10' LCD panel backlights (3*13 LED arrays typically). A constant frequency 1MHz PWM control scheme is employed in this IC, which means tiny external components can be used. Specifically, 1mm tall 4.7µH inductor and 0.47µF output capacitor for the typical application is sufficient. The over output voltage protection is equipped in AP3031, which protects the IC under open load condition. The AP3031 includes UVLO, soft-start, current limit and OTSD to protect the circuit. Pin Assignments (Top View) Pin 1 Mark SW 1 GND 2 FB 3 6 VIN 5 OV 4 CTRL SOT-23-6 The AP3031 is available in standard SOT-23-6 package. Features  Up to 92% Efficiency (VIN = 9V, IOUT = 260mA)  Up to 84% Efficiency (VIN = 5V, IOUT = 260mA)  Fast 1MHz Switching Frequency  Wide Input Voltage Range: 2.7V to 16V  Low 200mV Feedback Voltage  Output Overvoltage Protection  Cycle by Cycle Current Limit: 1.4A  Built-in Soft-Start  Built-in Standby Mode to Achieve High Frequency PWM Dimming  Built-in Thermal Shutdown Function  Undervoltage Lockout  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Halogen and Antimony Free. “Green” Device (Note 3)  For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufac...