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LF33CV - STMicroelectronics

Description: LF33CV, Low Dropout Voltage Regulator, 0.5A, 3.3 V ±2%, 3-Pin TO-220

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PCB Footprints
LF33CV - STMicroelectronics PCB footprint - Transistor Outline, Vertical - Transistor Outline, Vertical - 3-Pin TO-220
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LF33CV - STMicroelectronics  - 3D model - Transistor Outline, Vertical - 3-Pin TO-220
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LF33CV Details

  • Manufacturer Part Number:

    LF33CV

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SFM

  • Package Description:

    TO-220, 3 PIN

  • Pin Count:

    3

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    8 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    5.9

  • 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-PSFM-T3

  • JESD-609 Code:

    e4

  • Length:

    10.2 mm

  • Line Regulation-Max:

    0.016%

  • Load Regulation-Max:

    0.016%

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    3

  • Operating Temperature TJ-Max:

    125 °C

  • Operating Temperature TJ-Min:

    -40 °C

  • Output Current1-Max:

    0.5 A

  • Output Voltage1-Max:

    3.432 V

  • Output Voltage1-Min:

    3.168 V

  • Output Voltage1-Nom:

    3.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TO-220

  • Package Equivalence Code:

    SIP3,.1TB

  • Package Shape:

    RECTANGULAR

  • Package Style:

    FLANGE MOUNT

  • Packing Method:

    TUBE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    19.35 mm

  • Surface Mount:

    NO

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.55 mm

  • Terminal Position:

    SINGLE

  • Voltage Tolerance-Max:

    2%

  • Width:

    4.5 mm

LF33CV Frequently Asked Questions (FAQs)

  • A good PCB layout for the LF33CV involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the input and output traces. Additionally, it's recommended to use a star-ground configuration and to avoid routing high-frequency signals near the device.
  • To ensure stability, make sure to follow the recommended PCB layout, use a sufficient output capacitor (at least 1uF), and add a small ceramic capacitor (around 10nF) between the output and ground. Additionally, ensure that the input voltage is within the recommended range and that the device is not overheating.
  • The LF33CV can handle input voltages up to 30V, but it's recommended to keep the input voltage below 24V to ensure reliable operation and to prevent overheating.
  • The LF33CV is rated for operation up to 125°C, but its performance may degrade at high temperatures. It's recommended to derate the output current and voltage at high temperatures to ensure reliable operation.
  • The output voltage of the LF33CV can be calculated using the formula: Vout = Vref x (1 + R1/R2), where Vref is the internal reference voltage (around 2.5V), and R1 and R2 are the resistors in the output voltage divider.

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LF33CV 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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