AP5727 Datasheet | Diodes Incorporated

BIAS POWER SUPPLY FOR OLED SUB DISPLAY AND TFT-LED Description The AP5727 is a high efficiency boost converter in a pact SOT25 that provides the bias voltages for OLED Sub Display and TFT-LCD (Liquid Crystal Display). A high 1.2MHz switching frequency and internal pensation minimizes external part count, PCB area and cost. Integrated soft start reduces inrush current. The AP5727 has a 1.25V feedback voltage making it patible with industry standard boost converters used to bias LCD panels. Pin Assignments ( Top View ) SW 1 5 VIN 2 7 4 SOT25 NEW PRODUCT Features - - - - - - - - Applications - - - 30V High Output Voltage Fast 1.2MHz Switching Frequency Current limit and UVLO Protections Internal Thermal Shutdown Maximum 1µA Shutdown Current Integrated Soft-start Function SOT25: Available in “Green” Molding pound (No Br, Sb) Lead Free Finish/Ro HS pliant (Note 1) Small size TFT-LCD Bias power supply. OLED bias supply for a clamshell handset sub display RF amplifier bias voltages http://..net/ Notes: 1. EU Directive 2002/95/EC (Ro HS). All applicable Ro HS exemptions applied. Please visit our website at http://.diodes./products/lead_free.html. Typical Application Circuit L1 VIN 22u H C IN 4.7u F V IN EN GND SW COUT 10u F D1 VOUT R1 AP5727 FB R2 Figure 1. Typical Application Circuit Document number: DS31887 Rev. 2 - 2 1 of 10 .diodes. January 2011 © Diodes Incorporated datasheet pdf - http://..net/ BIAS POWER SUPPLY FOR OLED SUB DISPLAY AND TFT-LED Functional Block Diagram 1 SW parator Driver A2 R S Q...