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LM20145MH/NOPB - Texas Instruments

Description: 2.95-5.5V, 5A, Current Mode Synchronous Buck Regulator with Adjustable Frequency

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LM20145MH/NOPB - Texas Instruments - PCB symbol
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PCB Footprints
LM20145MH/NOPB - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PWP0016A PowerPAD HTSSOP - 1.2 mm max height
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3D Models
LM20145MH/NOPB - Texas Instruments - 3D model - Small Outline Packages - PWP0016A PowerPAD HTSSOP - 1.2 mm max height
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LM20145MH/NOPB Details

  • Manufacturer Part Number:

    LM20145MH/NOPB

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TSSOP

  • Pin Count:

    16

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    ALSO HAS ADJUSTABLE OUTPUT VOLTAGE DOWN TO 0.8V

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    5.5 V

  • Input Voltage-Min:

    2.95 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:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    5 A

  • Output Voltage-Max:

    5 V

  • Output Voltage-Min:

    0.8 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HTSSOP

  • 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:

    750 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    AUTOMOTIVE

  • 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

LM20145MH/NOPB Frequently Asked Questions (FAQs)

  • A good PCB layout for the LM20145MH/NOPB should prioritize thermal dissipation. Place the device near a thermal pad or a heat sink, and ensure good copper pour coverage around the device. Avoid routing high-current traces near the device, and use thermal vias to dissipate heat.
  • To ensure stability, follow the recommended component values and PCB layout guidelines. Ensure that the output capacitor has a low ESR and is placed close to the output pin. Also, add a small ceramic capacitor (e.g., 10nF) between the output and ground to filter out high-frequency noise.
  • The maximum input voltage for the LM20145MH/NOPB is 42V. Exceeding this voltage may damage the device. Ensure that the input voltage is within the recommended range to ensure reliable operation.
  • The output voltage ripple and noise can be calculated using the formula: ΔVout = (Iout * ESR) / (f * Cout), where Iout is the output current, ESR is the output capacitor's equivalent series resistance, f is the switching frequency, and Cout is the output capacitance. Use this formula to estimate the output voltage ripple and noise, and adjust the component values accordingly.
  • A ceramic or electrolytic capacitor with a value between 10uF to 22uF is recommended for the input capacitor. The capacitor should have a voltage rating of at least 50V and be placed close to the input pin to filter out input noise and ripple.

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LM20145MH/NOPB Overview

Use the download button to access the LM20145MH/NOPB schematic symbol, PCB footprint, and 3D model.
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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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LM20145MH/NOPB Alternates

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For a full list of alternate parts for LM20145MH/NOPB, check out Findchips.com