Diodes Incorporated — Analog and discrete power solutions
SOT26

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AP3032

White LED Step-Up Converter for Small Panel

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Description

The AP3032 is an inductor-based DC/DC boost converter designed to drive up to 4 rows of °Cs with 7 series for each in parallel for backlight. A constant frequency 1MHz PWM control scheme is employed in this IC, which means tiny external components can be used. Specifically, 1mm tall 6.8μH inductor and 1μF aluminum output capacitor for the typical application is sufficient. The over output voltage protection is equipped in AP3032, which protects the IC under open load condition. The AP3032 includes UVLO, soft-start, stand-by mode, current limiting and OTSD to protect the circuit under over load condition.

Application(s)

  • 7’ to 10’ LCD Panels
  • Digital Photo Frame
  • GPS Receiver
  • Specifications & Technical Documents

    Product Parameters

    AEC Qualified

    No

    Compliance (Only Automotive Supports PPAP)

    Standard

    Function

    Boost LED Driver

    MinimumInput Voltage (V)

    2.7 V

    MaximumInput Voltage (V)

    9 V

    Maximum Output Voltage (V)

    37 V

    Number of Regulated Output Channels

    1

    Maximum Output Current per Channel

    260 mA

    Typical Overcurrent Protection Current

    1400 mA

    Switching Frequency (MHz)

    1 MHz

    Efficiency (%)

    81 %

    Quiescent Current (µA)

    4 mA

    Standby Quiescent Current (µA)

    50 µA

    SW RDS(ON)

    N/A Ω

    Dimming

    PWM and External DC

    OVP

    Yes

    Soft Start

    Yes

    VFB

    200 V

    OperatingTemperatureRange  (°C)

    -40 to 85 °C

    Related Content

    Packages

    Technical Documents

    Calculators

    Evaluation Boards and User Guides

    Recommended Soldering Techniques

    TN1.pdf

    Purchase & Availability

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    Product Change Notices (PCNs)

    A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

    PCN # Issue Date Implementation Date Subject
    PCN-2770 2025-10-30 2025-10-30 Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products
    PCN-2548 2021-10-08 2022-01-08 Additional Wafer Source (JKFAB), New Bill of Materials (BOM) with PdCu Bond Wire, and Assembly/Test (A/T) Site (CAT)