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Texas Instruments TPS62175 Step-Down Converter

Texas Instruments TPS62175 is a high efficiency synchronous step-down DC-DC converter, based on the DCS-Control topology. With a wide operating input voltage range of 4.75 to 28V, the device is ideally suited for systems powered from multi cell Li-Ion as well as 12V and even higher intermediate supply rails, providing up to 500mA output current. The TPS62175 automatically enters Power Save Mode at light loads, to maintain high efficiency across the whole load range. As well, it features a Sleep Mode to supply applications with advanced power save modes like ultra low power micro controllers.

The Power Good output may be used for power sequencing and/or Power On Reset. The device features a typical quiescent current of 22µA in normal mode and 4.8uA in Sleep Mode. In Sleep Mode, the efficiency at very low load currents can be increased by as much as 20%. In shutdown mode, the shutdown current is less than 2µA and the output is actively discharged. The TPS62175, available in an adjustable and a fixed output voltage version, is packaged in a small 2mm x 3mm 10-pin WSON package.

Features

  • DCS-Control Topology
  • Input Voltage Range 4.75V to 28V
  • Quiescent Current typ. 4.8µA (Sleep Mode)
  • 100% Duty Cycle Mode
  • Active Output Discharge
  • Power Good Output
  • Output Current of 500mA
  • Output Voltage Range 1V to 6V
  • Switching Frequency of Typically 1MHz
  • Seamless Power Save Mode Transition
  • Undervoltage Lockout
  • Short Circuit Protection
  • Over Temperature Protection
  • Available in 2mm x 3mm 10-pin WSON Package

Applications

  • General 12V/24V Point Of Load Supply
  • Ultra Mobile PC, Embedded PC
  • Low Power Supply for Microprocessor
  • High Efficiency LDO Alternative
  • Industrial Sensors

Development Tools

Published: 2014-05-08 | Updated: 2022-03-11