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RT9740AGQW - RICHTEK

Description: Power Switch ICs - Power Distribution Dual Channel, Ultra-Low Resistance Load Switch 18 mOhms 800 mV to 5.5 V SMD/SMT

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Symbol
RT9740AGQW - RICHTEK - PCB symbol
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PCB Footprints
RT9740AGQW - RICHTEK PCB footprint - Other - Other - WDFN3x2-14T_2025
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RT9740AGQW - RICHTEK - 3D model - Other - WDFN3x2-14T_2025
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RT9740AGQW Details

  • Manufacturer Part Number:

    RT9740AGQW

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    WDFN-14

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Richtek Technology Corp

  • YTEOL:

    7

  • Adjustable Threshold:

    NO

  • Analog IC - Other Type:

    LOAD SWITCH

  • JESD-30 Code:

    R-PDSO-N14

  • Length:

    3 mm

  • Number of Channels:

    1

  • Number of Functions:

    2

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVSON

  • Package Equivalence Code:

    SOLCC14,.08,16

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

  • Seated Height-Max:

    0.8 mm

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    2.5 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.4 mm

  • Terminal Position:

    DUAL

  • Width:

    2 mm

RT9740AGQW Frequently Asked Questions (FAQs)

  • Richtek provides a recommended PCB layout in their application note AND9234, which includes guidelines for thermal vias, copper pours, and component placement to minimize thermal resistance and ensure reliable operation.
  • The output capacitor selection depends on the output voltage, output current, and desired ripple voltage. Richtek recommends using a low-ESR capacitor with a minimum capacitance of 10uF and a voltage rating of at least 1.5 times the output voltage. A X5R or X7R dielectric capacitor is recommended for its low impedance and high reliability.
  • The maximum junction temperature (Tj) for the RT9740AGQW is 150°C. However, it's recommended to keep the junction temperature below 125°C for reliable long-term operation and to prevent thermal shutdown.
  • Richtek recommends using an external OVP circuit, such as a voltage supervisor IC or a zener diode, to detect overvoltage conditions and shut down the regulator. The OVP threshold should be set to a voltage slightly higher than the maximum rated input voltage.
  • Richtek recommends using a ceramic or film capacitor with a minimum capacitance of 1uF and a voltage rating of at least 1.5 times the maximum input voltage. A X5R or X7R dielectric capacitor is recommended for its low impedance and high reliability.

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RT9740AGQW Overview

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