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LM2940CS-15 - Texas Instruments

Description: Low Dropout,Voltage Regulator

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LM2940CS-15 Details

  • Manufacturer Part Number:

    LM2940CS-15

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    D2PAK

  • Package Description:

    TO-263, 3 PIN

  • Pin Count:

    4

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Date Of Intro:

    1995-01-01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Adjustability:

    FIXED

  • Dropout Voltage1-Max:

    1 V

  • Dropout Voltage1-Nom:

    0.5 V

  • Input Voltage Absolute-Max:

    45 V

  • Input Voltage-Max:

    26 V

  • Input Voltage-Min:

    16.75 V

  • JESD-30 Code:

    R-PSSO-G3

  • JESD-609 Code:

    e0

  • Length:

    10.16 mm

  • Line Regulation-Max:

    0.15%

  • Load Regulation-Max:

    0.15%

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    3

  • Operating Temperature TJ-Max:

    125 °C

  • Output Current1-Max:

    1 A

  • Output Voltage1-Max:

    15.75 V

  • Output Voltage1-Min:

    14.25 V

  • Output Voltage1-Nom:

    15 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TO-263

  • Package Equivalence Code:

    SMSIP3H,.55TB

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TUBE

  • Peak Reflow Temperature (Cel):

    235

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    4.8 mm

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    SINGLE

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

    NOT SPECIFIED

  • Voltage Tolerance-Max:

    5%

  • Width:

    8.64 mm

LM2940CS-15 Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LM2940CS-15 is 26V, but it's recommended to keep it below 20V for reliable operation.
  • The LM2940CS-15 has a maximum operating junction temperature of 150°C, but it's recommended to keep the temperature below 125°C for reliable operation. You can use thermal management techniques like heat sinks or thermal interfaces to reduce the temperature.
  • The output voltage tolerance of the LM2940CS-15 is ±2% over the entire operating temperature range. You can calculate the output voltage tolerance by multiplying the nominal output voltage (15V) by the tolerance percentage (2%).
  • The LM2940CS-15 has a dropout voltage of around 1.5V, which means it's not suitable for low-dropout applications. If you need a low-dropout voltage regulator, consider using a different part like the LM1117 or LM337.
  • To ensure the stability of the LM2940CS-15 output voltage, make sure to use a suitable output capacitor with a minimum value of 22μF and an ESR of less than 5 ohms. You can also add a 10nF ceramic capacitor in parallel with the output capacitor for additional stability.

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LM2940CS-15 Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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