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Texas Instruments TPS62865/TPS62867 Synchronous Step-Down Converters

Texas Instruments TPS62865/TPS62867 Synchronous Step-Down Converters provide an efficient, flexible, and high power-density solution. At medium to heavy loads, the converters operate in PWM mode and automatically enter Power Save Mode operation at light load to maintain high efficiency over the entire load current range. The devices can also be forced in PWM mode operation to minimize output voltage ripple. Together with its DCS-control architecture, excellent load transient performance and tight output voltage accuracy are achieved. The devices feature a Power Good signal and an internal soft-start circuit. The Texas Instruments TPS62865/TPS62867 can operate in 100% mode. For fault protection, the devices incorporate a HICCUP short circuit protection as well as a thermal shutdown.

Features

  • DCS-Control topology for fast transient response
  • 11mΩ and 10.5mΩ internal power MOSFETs
  • 1% output voltage accuracy
  • 4µA operating quiescent current
  • 2.4V to 5.5V input voltage range
  • 0.6V to VIN output voltage range
  • Fixed (selectable by an external resistor) and adjustable output voltage versions
  • 2.4MHz switching frequency
  • Forced PWM or power save mode
  • Output voltage discharge
  • 100% duty cycle mode
  • Hiccup short-circuit protection
  • Power good indicator with window comparator
  • Thermal shutdown
  • Solution sizes down to 30mm2 possible
  • Available in 1.5mm × 2.5mm QFN with 0.5mm pitch

Applications

  • Core supply for FPGAs, CPUs, ASICs, or video chipsets
  • Machine vision cameras
  • IP network cameras
  • Solid-state drives
  • Optical modules
  • Multifunction printers

Functional Block Diagram

Block Diagram - Texas Instruments TPS62865/TPS62867 Synchronous Step-Down Converters

Texas Instruments TPS62865/TPS62867 Synchronous Step-Down Converters