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PM8903TR - STMicroelectronics

Description: 3 A step-down monolithic switching regulator

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PM8903TR - STMicroelectronics - PCB symbol
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PCB Footprints
PM8903TR - STMicroelectronics PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - VFQFPN16 3 x 3 x 1.0 mm
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3D Models
PM8903TR - STMicroelectronics - 3D model - Quad Flat No-Lead - VFQFPN16 3 x 3 x 1.0 mm
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PM8903TR Details

  • Manufacturer Part Number:

    PM8903TR

  • Brand Name:

    STMicroelectronics

  • Part Life Cycle Code:

    Obsolete

  • Package Description:

    3 X 3 MM, 1 MM HEIGHT, ROHS COMPLIANT, VFQFP-16

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Additional Feature:

    ADJUSTABLE OUTPUT VOLTAGE DOWN TO 0.6 V, ALSO OPERATES FROM 2.9 VOLT TO 5.5 VOLT SUPPLY

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    6 V

  • Input Voltage-Min:

    2.8 V

  • Input Voltage-Nom:

    3.3 V

  • JESD-30 Code:

    S-XQCC-N16

  • Length:

    3 mm

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -25 °C

  • Output Current-Max:

    3 A

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HVQCCN

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Seated Height-Max:

    1 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1100 kHz

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    3 mm

PM8903TR Frequently Asked Questions (FAQs)

  • STMicroelectronics recommends a 4-layer PCB with a solid ground plane and thermal vias to ensure optimal thermal performance. A thermal pad on the bottom of the package should be connected to the ground plane.
  • To ensure reliable operation at high temperatures, it is essential to follow the recommended thermal design guidelines, use a heat sink if necessary, and ensure that the device is operated within the specified temperature range.
  • The critical timing parameters for the PM8903TR include the switching frequency, rise and fall times, and dead time. These parameters should be carefully considered to ensure proper operation and to avoid electromagnetic interference (EMI).
  • To troubleshoot issues with the PM8903TR, start by checking the input voltage, output voltage, and current. Verify that the device is properly configured and that the input and output capacitors are properly sized. Use an oscilloscope to check the waveforms and identify any anomalies.
  • When designing an EMI filter for the PM8903TR, consider the frequency range, impedance, and attenuation requirements. A common-mode choke, X-capacitors, and Y-capacitors can be used to filter out electromagnetic interference.

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PM8903TR Overview

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To find more CAD model downloads similar to this part, try a partial part number search, like PM890, or try a keyword search, such as Switching Regulator or Controllers

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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