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AP1539SDPG-13 - Diodes Incorporated

Description: Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 4A 8-SOIC (0.154", 3.90mm Width)

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PCB Footprints
AP1539SDPG-13 - Diodes Incorporated PCB footprint - Other - Other - AP1539SDPG-13-5
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AP1539SDPG-13 - Diodes Incorporated  - 3D model - Other - AP1539SDPG-13-5
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AP1539SDPG-13 Details

  • Manufacturer Part Number:

    AP1539SDPG-13

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Not Recommended

  • Part Package Code:

    SOIC

  • Package Description:

    GREEN, SOP-8

  • Pin Count:

    8

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Diodes Incorporated

  • YTEOL:

    3

  • Additional Feature:

    ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8-18V

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    18 V

  • Input Voltage-Min:

    3.6 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    4 A

  • Output Voltage-Max:

    18 V

  • Output Voltage-Min:

    0.8 V

  • Output Voltage-Nom:

    5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HLSOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.63 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    400 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    MATTE TIN

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    3.9 mm

AP1539SDPG-13 Frequently Asked Questions (FAQs)

  • A good PCB layout for optimal thermal performance would be to have a solid ground plane on the bottom layer, and a thermal relief pattern on the top layer. This helps to dissipate heat efficiently.
  • To ensure stability, make sure to follow the recommended component values and PCB layout guidelines. Additionally, a minimum ESR of 1 ohm for the output capacitor is recommended to prevent oscillation.
  • Although the datasheet specifies a maximum input voltage of 18V, it's recommended to derate the input voltage to 15V to ensure reliable operation and prevent damage to the device.
  • While the AP1539SDPG-13 is rated for operation up to 125°C, it's essential to consider the thermal derating curve and ensure the device is properly heatsinked to prevent overheating and ensure reliable operation.
  • To troubleshoot issues, start by verifying the input voltage, output voltage, and current. Check for proper PCB layout, component values, and thermal management. Use an oscilloscope to inspect the output voltage waveform and check for signs of oscillation or instability.

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AP1539SDPG-13 Overview

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