Part Image

L7981ATR - STMicroelectronics

Description: 3 A step-down switching regulator

Download L7981ATR Model
Schematic
symbols
Schematic symbol is unavailable for download
PCB
footprints
PCB footprint is unavailable for download
3D
models
3D model is unavailable for download
PCB Footprints
L7981ATR - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - HSOP8_
click to zoom
3D Models
L7981ATR - STMicroelectronics  - 3D model - Small Outline Packages - HSOP8_
click to zoom

L7981ATR Details

  • Manufacturer Part Number:

    L7981ATR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    3 X 3 MM, 1.08 MM HEIGHT, ROHS COMPLIANT, HSOP-8

  • Pin Count:

    8

  • Country Of Origin:

    Mainland China, Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    12 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    7

  • Additional Feature:

    ALSO OPERATES IN ADJUSTABLE MODE FROM 0.6 V

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    28 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    S-XDSO-N8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    3 A

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HLSOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.7 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    275 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

L7981ATR Frequently Asked Questions (FAQs)

  • The L7981ATR can handle a maximum input voltage of 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, and a maximum ESR of 1 ohm. Also, keep the input and output capacitors close to the IC to minimize noise and oscillations.
  • The L7981ATR can provide a maximum output current of 1A, but it's recommended to keep it below 800mA for reliable operation and to prevent overheating.
  • To protect the L7981ATR from overheating, make sure to provide adequate heat sinking, keep the device away from high-temperature sources, and ensure good airflow around the device.
  • The L7981ATR is rated for operation up to 125°C, but it's recommended to keep the junction temperature below 115°C for reliable operation. Use a heat sink and ensure good airflow to prevent overheating.

Trust Checks

This model has been built in collaboration with the manufacturer.
Manufacturer Collaborated
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored

L7981ATR Overview

Use the download button to access the L7981ATR schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like L7981, or try a keyword search, such as Switching Regulator or Controllers

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

Parts related to L7981ATR

Showing 0 results