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L6997STR - STMicroelectronics

Description: Switching Controllers 3.0 to 5.5V Step-Dwn

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L6997STR - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - TSSOP20
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L6997STR - STMicroelectronics  - 3D model - Small Outline Packages - TSSOP20
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L6997STR Details

  • Manufacturer Part Number:

    L6997STR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TSSOP

  • Package Description:

    MO-153-AC, TSSOP-20

  • Pin Count:

    20

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    5.5 V

  • Input Voltage-Min:

    3 V

  • Input Voltage-Nom:

    3.3 V

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    6.5 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP20,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.2 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    PUSH-PULL

  • Switching Frequency-Max:

    500 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    NICKEL PALLADIUM GOLD

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    40

  • Width:

    4.4 mm

L6997STR Frequently Asked Questions (FAQs)

  • The L6997STR can handle input voltages up to 40V, but it's recommended to keep it below 36V for optimal performance and reliability.
  • The inductor value depends on the output voltage, output current, and switching frequency. A good starting point is to use the inductor selection guide provided in the datasheet, and then fine-tune the value based on your specific application requirements.
  • The EN (enable) pin is used to turn the regulator on or off. When EN is high, the regulator is enabled, and when EN is low, the regulator is disabled. You can use this pin to implement power sequencing or to turn off the regulator when not in use.
  • The internal voltage reference has a tolerance of ±1.5%. To compensate for this, you can adjust the output voltage by adding a trimmer resistor or a potentiometer in the feedback network.
  • The L6997STR can deliver up to 3A of output current, but this depends on the input voltage, output voltage, and thermal conditions. Be sure to check the thermal derating curves in the datasheet to ensure reliable operation.

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L6997STR Overview

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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

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Part Image L6997S STMicroelectronics

Switching Controller, Voltage-mode, 500kHz Switching Freq-Max, PDSO20