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NCP81234MNTXG - onsemi

Description: 4.5 V to 24 V input with internal bias; Adjustable output from 0.6 V to 5 V; Adjustable switching frequency from 200 kHz to 1.2 MHz; PWM output compatible to 3.3 V and 5 V DrMOS; Differential output sense; Differential current sense; Overcurrent, Over/Undervoltage, and Thermal protection

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PCB Footprints
NCP81234MNTXG - onsemi PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - QFN28 5x5, 0.5P CASE 485BQ−01 ISSUE O
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3D Models
NCP81234MNTXG - onsemi  - 3D model - Quad Flat No-Lead - QFN28 5x5, 0.5P CASE 485BQ−01 ISSUE O
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NCP81234MNTXG Details

  • Manufacturer Part Number:

    NCP81234MNTXG

  • Brand Name:

    onsemi

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QFN-28

  • Manufacturer Package Code:

    485BQ

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    26 Weeks

  • Manufacturer:

    onsemi

  • YTEOL:

    8

  • Additional Feature:

    ADJUSTABLE OUTPUT VOLATGE FROM 0.6 TO 5.3 V

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    CURRENT/VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    20 V

  • Input Voltage-Min:

    4.5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    S-XQCC-N28

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Voltage-Max:

    5.3 V

  • Output Voltage-Min:

    0.6 V

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HVQCCN

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1320 kHz

  • Temperature Grade:

    AUTOMOTIVE

  • 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

NCP81234MNTXG Frequently Asked Questions (FAQs)

  • A 2-layer or 4-layer PCB with a solid ground plane and thermal vias is recommended. Ensure a minimum of 1 oz copper thickness and a thermal relief pattern under the device.
  • Use a soft-start circuit to limit inrush current during start-up. For shutdown, ensure a controlled ramp-down of the output voltage to prevent voltage spikes.
  • Use a common-mode choke, X-capacitors, and Y-capacitors to filter EMI. Ensure the filter components are placed close to the device and the PCB layout is optimized for EMI reduction.
  • Use a heat sink with a thermal interface material, ensure good airflow, and consider using a thermal pad or thermal tape to improve heat transfer. Monitor the device's junction temperature and adjust the design accordingly.
  • Ensure identical devices, use a master-slave configuration, and implement a current-sharing scheme. Consider using a dedicated current-sensing resistor and a current-balancing circuit.

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NCP81234MNTXG Overview

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