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RT6585BGQW - RICHTEK

Description: Switching Controllers Dual-Channel Synchronous DC/DC Step-Down Controller with 5V/3.3V LDOs

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Symbol
RT6585BGQW - RICHTEK - PCB symbol
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PCB Footprints
RT6585BGQW - RICHTEK PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - WQFN-20L 3x3
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3D Models
RT6585BGQW - RICHTEK - 3D model - Quad Flat No-Lead - WQFN-20L 3x3
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RT6585BGQW Details

  • Manufacturer Part Number:

    RT6585BGQW

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Richtek Technology Corp

  • YTEOL:

    8

  • Additional Feature:

    5V OUTPUT ALSO HAS AVAILABLE

  • Analog IC - Other Type:

    DUAL SWITCHING CONTROLLER

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    25 V

  • Input Voltage-Min:

    5 V

  • Input Voltage-Nom:

    12 V

  • JESD-30 Code:

    S-XQCC-N20

  • Length:

    3 mm

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    0.1 A

  • Output Voltage-Max:

    5.5 V

  • Output Voltage-Min:

    2 V

  • Output Voltage-Nom:

    3.3 V

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC20,.11SQ,16

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

  • Seated Height-Max:

    0.8 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    570 kHz

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.4 mm

  • Terminal Position:

    QUAD

  • Width:

    3 mm

RT6585BGQW Frequently Asked Questions (FAQs)

  • Richtek provides a recommended PCB layout in their application note ANI45, 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 is recommended for stable operation.
  • Although the datasheet specifies a maximum input voltage of 18V, Richtek recommends limiting the input voltage to 15V to ensure reliable operation and prevent damage to the internal circuitry.
  • The RT6585BGQW has a built-in overcurrent protection feature that can be enabled by connecting a resistor between the OCP pin and GND. The value of the resistor determines the overcurrent threshold. Richtek provides a calculation formula for selecting the correct resistor value in their datasheet.
  • Richtek recommends using a 1uF to 10uF ceramic capacitor with a voltage rating of at least 1.5 times the input voltage. A X5R or X7R dielectric is recommended for stable operation. The input capacitor should be placed as close as possible to the VIN pin to minimize noise and ripple.

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RT6585BGQW Overview

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