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MP4458DQT-LF-Z - Monolithic Power Systems (MPS)

Description: IC REG BUCK ADJUSTABLE 1A 10TQFN

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PCB Footprints
MP4458DQT-LF-Z - Monolithic Power Systems (MPS) PCB footprint - Small Outline No-lead - Small Outline No-lead - 3mm×3mm QFN10
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3D Models
MP4458DQT-LF-Z - Monolithic Power Systems (MPS)  - 3D model - Small Outline No-lead - 3mm×3mm QFN10
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MP4458DQT-LF-Z Details

  • Manufacturer Part Number:

    MP4458DQT-LF-Z

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SON

  • Package Description:

    TQFN-10

  • Pin Count:

    10

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    20 Weeks

  • Manufacturer:

    Monolithic Power Systems

  • Additional Feature:

    ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 36V

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Input Voltage-Max:

    36 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    S-PDSO-N10

  • JESD-609 Code:

    e3

  • Length:

    3 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    10

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    2.2 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVSON

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    4800 kHz

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    MATTE TIN

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    DUAL

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

    40

  • Width:

    3 mm

MP4458DQT-LF-Z Frequently Asked Questions (FAQs)

  • A good PCB layout for the MP4458DQT-LF-Z should prioritize thermal dissipation. Place the device near a thermal pad or a heat sink, and ensure good airflow around the component. Use a solid ground plane and minimize thermal vias to reduce thermal resistance.
  • To optimize output voltage accuracy, ensure that the feedback resistors (R1 and R2) have a 1% tolerance or better. Also, use a high-precision voltage reference (e.g., 0.5% or better) and minimize noise on the FB pin.
  • A low-ESR ceramic capacitor (e.g., X5R or X7R) with a value of 4.7 μF to 10 μF is recommended for the input capacitor (CIN). This helps to filter out high-frequency noise and ensure stable operation.
  • To prevent overheating, ensure that the device is properly heatsinked, and the thermal pad is connected to a solid ground plane. Also, consider adding a soft-start circuit to limit the inrush current during startup.
  • The maximum allowed voltage on the EN pin is 6 V. Exceeding this voltage may damage the device. Ensure that the voltage on the EN pin is within the recommended range (0 V to 5.5 V) to prevent damage.

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MP4458DQT-LF-Z Overview

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Part Image MP4458DQT-LF Monolithic Power Systems

Switching Regulator, Current-mode, 2.2A, 4800kHz Switching Freq-Max, PDSO10

Part Image MP4458DQT Monolithic Power Systems

Switching Regulator, Current-mode, 2.2A, 4800kHz Switching Freq-Max, PDSO10