Diodes Incorporated
SOT25

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AP5727

White LED Step-Up Converter

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Description

The AP5727 is a high efficiency boost converter in a compact SOT25 that provides the bias voltages for OLED Sub Display and TFT-LCD (Liquid Crystal Display). A high 1.2MHz switching frequency and internal compensation minimizes external part count, PCB area and cost. Integrated soft start reduces inrush current. The AP5727 has a 1.25V feedback voltage making it compatible with industry standard boost converters used to bias LCD panels.

Application(s)

  • Small size TFT-LCD Bias power supply.
  • OLED bias supply for a clamshell handset sub display.
  • RF amplifier bias voltages

Product Specifications

Product Parameters

AEC Qualified No
Compliance (Only Automotive supports PPAP) Standard
Topologies (Buck) No
Topologies (Buck-Boost) No
Topologies (Boost) Yes
Topologies (Charge Pump) No
Minimum Input Voltage (V) 2.7
Maximum Input Voltage (V) 5.5
Maximum Output Voltage (V) 30
Switching Frequency Maximum (kHz) 1.2
Dimming (PWM) No
Dimming (Analog) No
Efficiency (%) 84
Operating Temperature Range (°C) -40 to 85
Quiescent Current Typ (mA) 0.5
AEC-Q100 Grade No

Related Content

Packages

Technical Documents

Evaluation Board User Guides

Recommended Soldering Techniques

TN1.pdf