AP3036BKTR-G1

A Product Line of Diodes Incorporated AP3036B WHITE LED STEP-UP CONVERTER Description Pin Assignments NEW PRODUCT The AP3036B is an inductor-based DC/DC converter designed to drive up to eight white LEDs in series for backlight. Only one feedback resistor is needed to control the LED current and obtain required brightness. (Top View) Pin 1 Mark A constant frequency 1.0MHz PWM control scheme is employed in this IC, which means tiny external components can be used. Specifically, 1mm tall inductor and 0.22µF output capacitor for a typical application is sufficient. Additionally, the Schottky diode in boost circuit is integrated on this chip. The AP3036B also provides a disable pin to ease its use for different systems. The output over-voltage protection is implemented in AP3036B. When any LED is broken or in other abnormal conditions, the output voltage will be clamped. CTRL 1 6 FB VOUT 2 5 GND VIN 3 4 SW SOT26 The AP3036B is available in standard SOT26 package. Applications Features                Cellular Phones Digital Cameras LCD Modules GPS Receivers PDAs, Handheld Computers Notes: Inherently Uniform LED Current High Efficiency up to 84% No Need for External Schottky Diode Output Over-voltage Protection (OVP) Fixed 1.0MHz Switching Frequency Uses Tiny 1mm Tall Inductor Requires Only 0.22µF Output Capacitor High Frequency Dimming Control Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain