Please enter a minimum 3 letters or numbers
Technical Content
Part Image

LT1940LEFE#PBF - Analog Devices

Description: Linear Technology, LT1940LEFE#PBF Switching Regulator Dual 1.4A, 1.25 → 16 V, 16-Pin TSSOP

Download LT1940LEFE#PBF 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
Send part feedback
Symbol
LT1940LEFE#PBF - Analog Devices - PCB symbol
click to zoom
PCB Footprints
LT1940LEFE#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - FE(TSSOP)_1
click to zoom
3D Models
LT1940LEFE#PBF - Analog Devices - 3D model - Small Outline Packages - FE(TSSOP)_1
click to zoom

LT1940LEFE#PBF Details

  • Manufacturer Part Number:

    LT1940LEFE#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    TSSOP-16

  • Pin Count:

    16

  • Manufacturer Package Code:

    05-08-1663 (BA)

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    8.5

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    7 V

  • Input Voltage-Min:

    3.6 V

  • Input Voltage-Nom:

    5 V

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    2

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    1.4 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HTSSOP

  • Package Equivalence Code:

    TSSOP16,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.1 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1350 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

LT1940LEFE#PBF Frequently Asked Questions (FAQs)

  • A good PCB layout for the LT1940LEFE involves keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing the length of the input and output traces. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
  • To ensure stability, it's essential to follow the recommended PCB layout, use the correct output capacitor value and type, and ensure that the input voltage is within the recommended range. Additionally, adding a small capacitor (e.g., 10nF) between the VIN and GND pins can help prevent oscillations.
  • The LT1940LEFE is rated for operation from -40°C to 125°C, but the maximum ambient temperature range depends on the specific application and the device's power dissipation. It's essential to ensure that the device's junction temperature (TJ) does not exceed 150°C.
  • Yes, the LT1940LEFE is suitable for high-reliability and automotive applications. It's manufactured using a high-reliability process, and it's qualified to the AEC-Q100 standard for automotive applications. However, it's essential to follow the recommended PCB layout, thermal management, and testing procedures to ensure the device meets the required reliability standards.
  • The power dissipation of the LT1940LEFE can be calculated using the formula: Pd = (VIN - VOUT) x IOUT. The junction temperature (TJ) can be estimated using the thermal resistance (θJA) and the power dissipation: TJ = TA + (Pd x θJA), where TA is the ambient temperature.

Trust Checks

This model has been provided by community users.
Community Provided
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored

LT1940LEFE#PBF Overview

Use the download button to access the LT1940LEFE#PBF schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like LT194, or try a keyword search, such as Switching Regulator or Controllers

About Analog Devices

Analog Devices Inc. is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits and software solutions for the industrial, automotive, healthcare, communications industries. Analog Devices serves a diverse range of markets including industrial, automotive, healthcare, energy, aerospace, defense, and consumer electronics industries. Analog Devices’ product portfolio includes a wide range of ICs, modules, and subsystems.

Parts related to LT1940LEFE#PBF

Showing 0 results

Part Image

← Prev Next →
About Us Contact Us Terms of Service Do not sell or share my personal information Privacy Policy Digital Services Act Library Loader Twitter LinkedIn

All content Copyright © 2020, Supplyframe.com. All rights reserved. Back to top ↑

LT1940LEFE#PBF Alternates

Showing results

Image Part Number Model
Part Image LT1940LEFE Analog Devices Inc

Switching Regulator, Current-mode, 1.4A, 1350kHz Switching Freq-Max, BIPolar, PDSO16
Part Image LT1940LEFE Linear Technology

Switching Regulator, Current-mode, 1.4A, 1350kHz Switching Freq-Max, BIPolar, PDSO16
Part Image LT1940LEFE#PBF Linear Technology

Switching Regulator, Current-mode, 1.4A, 1350kHz Switching Freq-Max, BIPolar, PDSO16