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ST1S40IDR - STMicroelectronics

Description: STMICROELECTRONICS - ST1S40IDR - DC-DC Switching Buck (Step Down) Regulator, Adjustable, 850kHz, 4V-18Vin, 0.8V-18V/3A out, SOIC-8

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ST1S40IDR - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - SO8-BW
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ST1S40IDR Details

  • Manufacturer Part Number:

    ST1S40IDR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    SO-8

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    12 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    7.7

  • Additional Feature:

    ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 18V

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    18 V

  • Input Voltage-Min:

    4 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    6 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1000 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    40

  • Width:

    3.9 mm

ST1S40IDR Frequently Asked Questions (FAQs)

  • A good PCB layout for the ST1S40IDR involves keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing the length of the traces to reduce parasitic inductance and capacitance.
  • To ensure stability, it's essential to follow the recommended output capacitor selection and layout guidelines, and to ensure that the output capacitor has a low equivalent series resistance (ESR) and a high ripple current rating.
  • The ST1S40IDR can handle a maximum input voltage of 18V, but it's recommended to operate within the specified input voltage range of 4.5V to 14V for optimal performance and reliability.
  • The output voltage of the ST1S40IDR can be calculated using the formula: Vout = Vref x (1 + R1/R2), where Vref is the internal reference voltage, and R1 and R2 are the resistors in the feedback network.
  • The EN (enable) pin is used to enable or disable the regulator. When the EN pin is pulled low, the regulator is disabled, and the output voltage is turned off.

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ST1S40IDR 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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