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LM2991T/LF03 - Texas Instruments

Description: Negative Low Dropout Adjustable Regulator

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PCB Footprints
LM2991T/LF03 - Texas Instruments PCB footprint - Transistor Outline, Vertical - Transistor Outline, Vertical - NDH0005D
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LM2991T/LF03 - Texas Instruments  - 3D model - Transistor Outline, Vertical - NDH0005D
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LM2991T/LF03 Details

  • Manufacturer Part Number:

    LM2991T/LF03

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SFM

  • Package Description:

    ZFM-5

  • Pin Count:

    3

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Adjustability:

    ADJUSTABLE

  • Dropout Voltage1-Max:

    1 V

  • Dropout Voltage1-Nom:

    0.6 V

  • Input Voltage-Max:

    0.3 V

  • Input Voltage-Min:

    26 V

  • JESD-30 Code:

    R-XZFM-T5

  • JESD-609 Code:

    e3

  • Length:

    14.986 mm

  • Line Regulation-Max (%/V):

    0.04

  • Load Regulation-Max(%):

    0.4%

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    5

  • Operating Temperature TJ-Max:

    125 °C

  • Operating Temperature TJ-Min:

    -40 °C

  • Output Current1-Max:

    1 A

  • Output Voltage1-Max:

    24 V

  • Output Voltage1-Min:

    3 V

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    ZFM

  • Package Equivalence Code:

    ZIP5,.15,.17,67TB

  • Package Shape:

    RECTANGULAR

  • Package Style:

    FLANGE MOUNT

  • Packing Method:

    TUBE

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    ADJUSTABLE NEGATIVE SINGLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    20.92 mm

  • Surface Mount:

    NO

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    1.702 mm

  • Terminal Position:

    ZIG-ZAG

  • Voltage Tolerance-Max:

    5%

  • Width:

    10.16 mm

LM2991T/LF03 Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LM2991T/LF03 is 40V, but it's recommended to keep it below 35V for reliable operation.
  • To ensure a stable and regulated output voltage, make sure to use a suitable output capacitor (e.g., 10uF) and a minimum load current of 1mA. Also, ensure the input voltage is within the recommended range.
  • The minimum input voltage required for the LM2991T/LF03 to operate is 7.5V, but it's recommended to keep it above 8V for reliable operation.
  • The LM2991T/LF03 is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage as temperature increases to ensure reliable operation.
  • To protect the LM2991T/LF03 from input voltage transients, use a TVS (Transient Voltage Suppressor) diode or a voltage clamp circuit at the input to limit voltage spikes.

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LM2991T/LF03 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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For a full list of alternate parts for LM2991T/LF03, check out Findchips.com