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LM78S40CN - Texas Instruments

Description: IC REG BUCK BST ADJ 1.5A 16DIP

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PCB Footprints
LM78S40CN - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - NS Package N16A
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3D Models
LM78S40CN - Texas Instruments  - 3D model - Dual-In-Line Packages - NS Package N16A
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LM78S40CN Details

  • Manufacturer Part Number:

    LM78S40CN

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    PLASTIC, DIP-16

  • Pin Count:

    16

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    40 V

  • Input Voltage-Min:

    2.5 V

  • Input Voltage-Nom:

    5 V

  • JESD-30 Code:

    R-PDIP-T16

  • Length:

    21.755 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    70 °C

  • Output Current-Max:

    1.5 A

  • Output Voltage-Max:

    40 V

  • Output Voltage-Min:

    1.25 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

  • Seated Height-Max:

    5.08 mm

  • Supply Current-Max (Isup):

    5.5 mA

  • Surface Mount:

    NO

  • Switcher Configuration:

    BOOST

  • Switching Frequency-Max:

    100 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    COMMERCIAL

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

LM78S40CN Frequently Asked Questions (FAQs)

  • The LM78S40CN can handle input voltages up to 35V, but it's recommended to keep it below 25V for optimal performance and to prevent overheating.
  • To ensure a stable output voltage, make sure to use a suitable input capacitor (e.g., 10uF) and output capacitor (e.g., 10uF) as close to the device as possible. Also, ensure the input voltage is within the recommended range and the device is properly heatsinked.
  • The LM78S40CN can provide up to 1A of output current, but it's recommended to keep it below 500mA for optimal performance and to prevent overheating.
  • To prevent overheating, ensure the device is properly heatsinked, and the ambient temperature is within the recommended range (0°C to 125°C). Also, keep the input voltage and output current within the recommended ranges.
  • Yes, the LM78S40CN is suitable for high-reliability applications, but it's essential to follow proper design and manufacturing guidelines, including using a suitable PCB layout, component selection, and testing procedures.

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LM78S40CN 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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LM78S40CN Alternates

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Image Part Number Model
Part Image LM78S40N/NOPB National Semiconductor Corporation

Switching Regulator, Current-mode, 1.5A, 100kHz Switching Freq-Max, BIPolar, PDIP16

Part Image LM78S40N National Semiconductor Corporation

Switching Regulator, Current-mode, 1.5A, 100kHz Switching Freq-Max, BIPolar, PDIP16

Part Image LM78S40CJ National Semiconductor Corporation

Switching Regulator, Current-mode, 1.5A, 100kHz Switching Freq-Max, BIPolar, CDIP16

Part Image LM78S40N Texas Instruments

Switching Regulator, Current-mode, 1.5A, 100kHz Switching Freq-Max, BIPolar, PDIP16

Part Image LM78S40J/883 Texas Instruments

Switching Regulator

For a full list of alternate parts for LM78S40CN, check out Findchips.com