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L4938N - STMicroelectronics

Description: DUAL MULTIFUNCTION VOLTAGE REGULATOR Fixed/Adjustable Positive LDO Regulator, 2 Output, 5V2 Min, 20V2 Max, BIPolar, PDIP16

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L4938N - STMicroelectronics PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - Power DIP16
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L4938N - STMicroelectronics  - 3D model - Dual-In-Line Packages - Power DIP16
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L4938N Details

  • Manufacturer Part Number:

    L4938N

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    DIP-16

  • Pin Count:

    16

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Adjustability:

    FIXED/ADJUSTABLE

  • Dropout Voltage1-Max:

    0.4 V

  • Dropout Voltage1-Nom:

    0.2 V

  • Dropout Voltage2-Max:

    0.6 V

  • Input Voltage Absolute-Max:

    28 V

  • JESD-30 Code:

    R-PDIP-T16

  • JESD-609 Code:

    e0

  • Length:

    20 mm

  • Line Regulation-Max:

    0.02%

  • Load Regulation-Max:

    0.05%

  • Load Regulation-Max(%):

    1%

  • Number of Functions:

    1

  • Number of Outputs:

    2

  • Number of Terminals:

    16

  • Operating Temperature TJ-Max:

    150 °C

  • Operating Temperature TJ-Min:

    -55 °C

  • Output Current1-Max:

    0.05 A

  • Output Current2-Max:

    0.5 A

  • Output Voltage1-Max:

    5.1 V

  • Output Voltage1-Min:

    4.9 V

  • Output Voltage1-Nom:

    5 V

  • Output Voltage2-Max:

    20 V

  • Output Voltage2-Min:

    5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP16,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED/ADJUSTABLE POSITIVE MULTIPLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    5.1 mm

  • Surface Mount:

    NO

  • Technology:

    BIPOLAR

  • Terminal Finish:

    TIN LEAD

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Voltage Tolerance-Max:

    2%

  • Width:

    7.62 mm

L4938N Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the L4938N is 30V, but it's recommended to keep it below 25V for reliable operation.
  • To ensure stability, make sure to use a minimum output capacitance of 10uF with an ESR (Equivalent Series Resistance) of less than 1 ohm, and a minimum input capacitance of 1uF.
  • The minimum input voltage required for the L4938N to regulate the output voltage is typically around 2.5V above the output voltage (Vout). For example, if Vout is 5V, the minimum input voltage would be around 7.5V.
  • The L4938N is rated for operation up to 150°C, but its performance may degrade at high temperatures. It's recommended to derate the output current and input voltage according to the temperature derating curves in the datasheet.
  • The power dissipation of the L4938N can be calculated using the formula: Pd = (Vin - Vout) x Iout, where Vin is the input voltage, Vout is the output voltage, and Iout is the output current.

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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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