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LF33ABDT - STMicroelectronics

Description: IC REG LINEAR 3.3V 500MA DPAK

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LF33ABDT - STMicroelectronics PCB footprint - Other - Other - LF33ABDT-3
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LF33ABDT Details

  • Manufacturer Part Number:

    LF33ABDT

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TO-252

  • Package Description:

    LEAD FREE, DPAK-3

  • Pin Count:

    3

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Adjustability:

    FIXED

  • Dropout Voltage1-Max:

    0.7 V

  • Dropout Voltage1-Nom:

    0.4 V

  • Input Voltage Absolute-Max:

    40 V

  • Input Voltage-Max:

    16 V

  • Input Voltage-Min:

    4.3 V

  • JESD-30 Code:

    R-PSSO-G2

  • JESD-609 Code:

    e3

  • Length:

    6.5 mm

  • Line Regulation-Max:

    0.016%

  • Load Regulation-Max:

    0.016%

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    2

  • Operating Temperature TJ-Max:

    125 °C

  • Operating Temperature TJ-Min:

    -40 °C

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -25 °C

  • Output Current1-Max:

    0.5 A

  • Output Voltage1-Max:

    3.366 V

  • Output Voltage1-Min:

    3.234 V

  • Output Voltage1-Nom:

    3.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TO-252

  • Package Equivalence Code:

    SMSIP3H,.38,90TB

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    2.63 mm

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    2.28 mm

  • Terminal Position:

    SINGLE

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

    30

  • Voltage Tolerance-Max:

    2%

  • Width:

    6.1 mm

LF33ABDT Frequently Asked Questions (FAQs)

  • STMicroelectronics provides a recommended PCB layout in the application note AN1071, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize noise.
  • The output capacitor value depends on the output voltage, output current, and desired ripple voltage. A general rule of thumb is to use a capacitor with a value between 10uF to 22uF, with a voltage rating at least 2x the output voltage. Consult the datasheet and application notes for more specific guidance.
  • Although the datasheet specifies a maximum input voltage of 15V, it's recommended to limit the input voltage to 12V to ensure reliable operation and prevent damage to the device.
  • To ensure stability, follow the recommended PCB layout, use a sufficient output capacitor, and add a 10nF to 100nF capacitor between the VIN and GND pins to filter out high-frequency noise. Additionally, ensure that the input voltage is well-regulated and the output load is within the specified range.
  • The typical dropout voltage of the LF33ABDT is around 1.5V to 2V, depending on the output current and input voltage. This means that the input voltage should be at least 1.5V to 2V higher than the desired output voltage to ensure proper regulation.

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LF33ABDT Overview

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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