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ST1S41PHR - STMicroelectronics

Description: Conv DC-DC 4V to 18V Step Down Single-Out 0.8V to 18V 4A 8-Pin HSOP EP T/R

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ST1S41PHR - STMicroelectronics - PCB symbol
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PCB Footprints
ST1S41PHR - STMicroelectronics PCB footprint - Small Outline Packages - Small Outline Packages - HSOP8 (Exposed Pad)
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3D Models
ST1S41PHR - STMicroelectronics - 3D model - Small Outline Packages - HSOP8 (Exposed Pad)
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ST1S41PHR Details

  • Manufacturer Part Number:

    ST1S41PHR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    PowerSO-8

  • Country Of Origin:

    Philippines

  • 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:

    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:

    7 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HLSOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.7 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1000 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Width:

    3.9 mm

ST1S41PHR Frequently Asked Questions (FAQs)

  • A 2-layer or 4-layer PCB with a solid ground plane and thermal vias under the device is recommended for optimal thermal performance. The thermal vias should be connected to the ground plane to dissipate heat efficiently.
  • The device requires a power-up sequence of EN (enable) pin high, followed by a delay of at least 10ms, and then the VIN (input voltage) pin high. The device is configured through the I2C interface, and the configuration registers should be written in the correct sequence as specified in the datasheet.
  • A ceramic capacitor with a value of 4.7uF to 10uF is recommended for the VIN pin. The capacitor should be placed as close as possible to the VIN pin to minimize noise and ensure stable operation.
  • The thermal shutdown feature is enabled by default. When the device temperature exceeds 150°C, the output is disabled, and the TSD (thermal shutdown) pin is pulled low. To handle thermal shutdown, monitor the TSD pin and take corrective action, such as reducing the load or improving airflow, to prevent overheating.
  • A ceramic capacitor with a value of 10uF to 22uF is recommended for the VOUT pin. The capacitor should be placed as close as possible to the VOUT pin to minimize noise and ensure stable operation.

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ST1S41PHR 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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