Inicio Gestión de la energía Convertidores de CA/CC y CC/CC (FET integrado)
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Gestión de la energía
Convertidores de CA/CC y CC/CC (FET integrado)

TPS62684

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Convertidor reductor de 1600 mA y alta eficiencia optimizado para soluciones de tamaño pequeño

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TPS62684

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Detalles del producto

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 1.6 Vin (min) (V) 3.25 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 3500 Switching frequency (max) (kHz) 5250 Features Enable, Light load efficiency, Output discharge, Spread Spectrum, Synchronous Rectification EMI features Spread Spectrum Control mode Voltage mode Vout (min) (V) 2.85 Vout (max) (V) 2.85 Iq (typ) (µA) 5800 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 1.6 Vin (min) (V) 3.25 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 3500 Switching frequency (max) (kHz) 5250 Features Enable, Light load efficiency, Output discharge, Spread Spectrum, Synchronous Rectification EMI features Spread Spectrum Control mode Voltage mode Vout (min) (V) 2.85 Vout (max) (V) 2.85 Iq (typ) (µA) 5800 Duty cycle (max) (%) 100
DSBGA (YFF) 6 1.4000000000000001 mm² 1 x 1.4000000000000001
  • VIN Range From 3.25V to 5.5V
  • Total Solution Size <12 mm2
  • Three Surface-Mount External Components Required
    (One 0805 MLCC Inductor, Two small Ceramic Capacitors)
  • Complete Sub 1-mm Component Profile Solution
  • Spread Spectrum, PWM Frequency Dithering
  • Best in Class Load and Line Transient
  • ±2% Total DC Voltage Accuracy
  • Up to 1600mA load current
  • 5.5MHz Regulated Frequency Operation
  • Available in a 6-Pin NanoFree (WCSP)
  • APPLICATIONS
    • Tablet PC
    • Cell Phones, Smart-Phones
    • Digital TV, WLAN, GPS and Bluetooth Applications

    •
    • VIN Range From 3.25V to 5.5V
    • Total Solution Size <12 mm2
    • Three Surface-Mount External Components Required
      (One 0805 MLCC Inductor, Two small Ceramic Capacitors)
    • Complete Sub 1-mm Component Profile Solution
    • Spread Spectrum, PWM Frequency Dithering
    • Best in Class Load and Line Transient
    • ±2% Total DC Voltage Accuracy
    • Up to 1600mA load current
    • 5.5MHz Regulated Frequency Operation
    • Available in a 6-Pin NanoFree (WCSP)
  • APPLICATIONS
    • Tablet PC
    • Cell Phones, Smart-Phones
    • Digital TV, WLAN, GPS and Bluetooth Applications

    •

    The TPS62684 is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications in which high load currents in a very small solution size and height are required. The TPS62684 is optimized for high efficiency and low output voltage ripple, supports up to 1600-mA load current and allows the use of low cost chip inductor and capacitors. With a input voltage range of 3.25V to 5.5V, the device supports applications powered by Li-Ion batteries as well as 5V rails.

    The TPS62684 operates at a 5.5-MHz switching frequency with PWM spread spectrum capability. For noise-sensitive applications, this provides a lower noise regulated output, as well as low noise at the input. The device supports a 2.85V fixed output voltage, requiring no external feedback network.

    These features, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency.

    The TPS62684 is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications in which high load currents in a very small solution size and height are required. The TPS62684 is optimized for high efficiency and low output voltage ripple, supports up to 1600-mA load current and allows the use of low cost chip inductor and capacitors. With a input voltage range of 3.25V to 5.5V, the device supports applications powered by Li-Ion batteries as well as 5V rails.

    The TPS62684 operates at a 5.5-MHz switching frequency with PWM spread spectrum capability. For noise-sensitive applications, this provides a lower noise regulated output, as well as low noise at the input. The device supports a 2.85V fixed output voltage, requiring no external feedback network.

    These features, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency.
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    Documentación técnica

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    Tipo Título Fecha
    * Data sheet TPS62684 1600-mA, High-Efficiency Step-Down Converter Optimized for Smallest Solution Size datasheet PDF | HTML 31 mar 2014
    Analog Design Journal Understanding 100% mode in low-power DC/DC converters 22 jun 2018
    Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 24 oct 2017
    Analog Design Journal Testing tips for applying external power to supply outputs without an input voltage 24 oct 2016
    Analog Design Journal Five steps to a great PCB layout for a step-down converter 29 ene 2015
    EVM User's guide TPS62684EVM-647 User's Guide 08 abr 2014
    Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) 13 ene 2012
    Analog Design Journal IQ: What it is, what it isn’t, and how to use it 17 jun 2011

    Diseño y desarrollo

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    • Contenido del material
    • Resumen de calificaciones
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    Información incluida:
    • Lugar de fabricación
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