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PM6641 - STMicroelectronics

Description: PM6641, Linear Voltage Regulator,, 48-Pin VFQFPN, VFQFPN EP

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PM6641 - STMicroelectronics - PCB symbol
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PCB Footprints
PM6641 - STMicroelectronics PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - QFN-48 (7 x 7 mm)_
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PM6641 - STMicroelectronics - 3D model - Quad Flat No-Lead - QFN-48 (7 x 7 mm)_
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PM6641 Details

  • Manufacturer Part Number:

    PM6641

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    QFP

  • Package Description:

    7 X 7 MM, 1 MM HEIGHT, LEAD FREE, VQFP-48

  • Pin Count:

    48

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    5 V

  • Input Voltage-Min:

    2.7 V

  • Input Voltage-Nom:

    3.3 V

  • JESD-30 Code:

    S-XQCC-N48

  • JESD-609 Code:

    e3

  • Length:

    7 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    48

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC48,.27SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1 mm

  • Supply Current-Max (Isup):

    3 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1100 kHz

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

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

    40

  • Width:

    7 mm

PM6641 Frequently Asked Questions (FAQs)

  • STMicroelectronics provides a recommended PCB layout in the application note AN2344, which includes guidelines for thermal pad connection, copper pour, and via placement to minimize thermal resistance and ensure reliable operation.
  • The input capacitor selection depends on the input voltage, output voltage, and output current. A general guideline is to choose a capacitor with a capacitance value between 10uF to 22uF, and a voltage rating at least 1.5 times the maximum input voltage. Additionally, consider the capacitor's ESR (Equivalent Series Resistance) and ensure it is within the recommended range specified in the datasheet.
  • The maximum allowed voltage drop across the internal FETs is not explicitly stated in the datasheet. However, as a general guideline, it is recommended to keep the voltage drop below 1V to ensure reliable operation and minimize power losses. This can be achieved by selecting the correct input and output capacitors and ensuring the PCB layout is optimized for low impedance.
  • The PM6641 is rated for operation up to 150°C junction temperature. However, the device's performance and reliability may degrade at high temperatures. It is recommended to derate the output current and ensure proper thermal management to prevent overheating. Consult the datasheet and application notes for more information on thermal management and high-temperature operation.
  • STMicroelectronics provides a troubleshooting guide in the application note AN2345, which covers common issues such as output voltage instability, overheating, and input voltage undershoot. Additionally, consult the datasheet and application notes for specific guidance on debugging and troubleshooting PM6641-related issues.

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PM6641 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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