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TPS62684

ACTIVE

1600-mA, High-Efficiency Step-Down Converter optimized for small solution size

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Data sheet

TPS62684

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck Iout (max) (A) 1.6 Vin (max) (V) 5.5 Vin (min) (V) 3.25 Vout (max) (V) 2.85 Vout (min) (V) 2.85 Features Enable, Light load efficiency, Output discharge, Spread Spectrum, Synchronous Rectification EMI features Spread Spectrum Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.0058 Duty cycle (max) (%) 100
Rating Catalog Topology Buck Iout (max) (A) 1.6 Vin (max) (V) 5.5 Vin (min) (V) 3.25 Vout (max) (V) 2.85 Vout (min) (V) 2.85 Features Enable, Light load efficiency, Output discharge, Spread Spectrum, Synchronous Rectification EMI features Spread Spectrum Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.0058 Duty cycle (max) (%) 100
DSBGA (YFF) 6 1.4000000000000001 mm² (— mm × — mm)
  • 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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    Technical documentation

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    Top documentation Type Title Format options Date
    * Data sheet TPS62684 1600-mA, High-Efficiency Step-Down Converter Optimized for Smallest Solution Size datasheet PDF | HTML Mar 31, 2014
    Analog design Journal Understanding 100% mode in low-power DC/DC converters Jun 22, 2018
    Analog design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold Oct 24, 2017
    Analog design Journal Testing tips for applying external power to supply outputs without an input voltage Oct 24, 2016
    Analog design Journal Five steps to a great PCB layout for a step-down converter Jan 29, 2015
    Application note Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) Jan 13, 2012
    Analog design Journal IQ: What it is, what it isn’t, and how to use it Jun 17, 2011

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