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PM6681ATR - STMicroelectronics

Description: PMIC - Voltage Regulators - Linear Switching 4 Output Step-Down (Buck) (2), Linear (LDO) (2) Down to 33kHz 32-VFQFPN (5x5)

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PCB Footprints
PM6681ATR - STMicroelectronics PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - VFQFPN 5 x 5 x 1.0, 32 lead, pitch 0.50
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3D Models
PM6681ATR - STMicroelectronics  - 3D model - Quad Flat No-Lead - VFQFPN 5 x 5 x 1.0, 32 lead, pitch 0.50
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PM6681ATR Details

  • Manufacturer Part Number:

    PM6681ATR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    QFN

  • Package Description:

    5 X 5 MM, 1 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, VFQFPN-32

  • Pin Count:

    32

  • Manufacturer Package Code:

    VFQFPN

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Additional Feature:

    ALSO OPERATES IN TWO ADJUSTABLE MODE FROM 0.9 V TO 5 V AND 0.9 V TO 3.3 V

  • Analog IC - Other Type:

    DUAL SWITCHING CONTROLLER

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    36 V

  • Input Voltage-Min:

    6 V

  • Input Voltage-Nom:

    24 V

  • JESD-30 Code:

    S-XQCC-N32

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    32

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    0.4 A

  • Output Voltage-Nom:

    5 V

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC32,.2SQ,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

  • Surface Mount:

    YES

  • Switcher Configuration:

    PUSH-PULL

  • 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):

    30

  • Width:

    5 mm

PM6681ATR Frequently Asked Questions (FAQs)

  • STMicroelectronics provides a recommended PCB layout in the application note AN2344, which includes guidelines for thermal vias, copper pours, and component placement to ensure optimal thermal performance.
  • The input capacitor values depend on the input voltage, output voltage, and output current. A general guideline is to use a minimum of 10uF ceramic capacitors with a voltage rating of at least 1.5 times the input voltage. Refer to the application note AN2344 for more detailed guidance.
  • The maximum allowed voltage drop across the internal FETs is typically around 1.5V to 2V, depending on the specific application and operating conditions. Exceeding this voltage drop may lead to reduced efficiency, increased heat generation, or even device failure.
  • To ensure the OCP is triggered correctly, make sure to connect the OCP pin to a suitable current sense resistor and configure the OCP threshold according to the application note AN2344. Additionally, ensure that the OCP pin is properly decoupled from the power supply and output voltage.
  • The recommended operating temperature range for the PM6681ATR is -40°C to 150°C, with a maximum junction temperature of 175°C. Operating outside this range may affect the device's performance, reliability, or lifespan.

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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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