Texas Instruments TPS6286Axx/TPS6286Bxx Step-Down Converters

Texas Instruments TPS6286Axx / TPS6286Bxx Step-Down Converters are high-frequency, synchronous, step-down converters that provide an efficient, flexible, and high power-density design. The converters operate in pulse width modulation (PWM) mode at medium to heavy loads and enter power save mode operation automatically at light load to maintain high efficiency over the entire load current range. The devices can also be forced to minimize output voltage ripple in PWM mode operation. Together with the DCS-Control architecture, excellent load transient performance and tight output voltage accuracy are achieved. The Texas Instruments TPS6286Axx / TPS6286Bxx devices feature a Power-Good signal and an adjustable soft-start feature. The devices can operate in 100% mode. The devices incorporate a HICCUP short-circuit protection and a thermal shutdown for fault protection.

Features

  • 2.4V to 5.5V input voltage range
  • Output current
    • TPS6286A06 - 6A
    • TPS6286A08 - 8A
    • TPS6286A10 - 10A
    • TPS6286B08 - 8A
    • TPS6286B10 - 10A
  • 8mΩ and 8mΩ internal power MOSFETs
  • 5.1µA operating quiescent current
  • 1.2MHz switching frequency
  • 100% duty cycle mode
  • 0.7% output voltage accuracy
  • Forced PWM or power save mode
  • DCS-Control topology (constant on-time)
  • FB version (TPS6286Axx) output voltage
    • Adjustable from 0.6V to VIN
    • Fixed (by external resistor) from 0.4V to 1.6V
  • I2C version (TPS6286Bxx) with selectable
    • Output voltage from 0.4V to 1.675V with 5mV step size
    • Power save mode or forced PWM mode
    • Hiccup or latching short-circuit protection
    • Dynamic, adaptive voltage scaling ramp speed
  • Output voltage discharge
  • Hiccup short-circuit protection
  • Power-good indicator with window comparator
  • Thermal shutdown
  • Adjustable soft start
  • –40°C to 125°C operating temperature range

Applications

  • Core supply for FPGAs, CPUs, ASICs, and DSPs
  • Machine vision cameras
  • IP network cameras
  • Solid state drive

TPS6282Axx Functional Block Diagram

Block Diagram - Texas Instruments TPS6286Axx/TPS6286Bxx Step-Down Converters

TPS6282Bxx Functional Block Diagram

Texas Instruments TPS6286Axx/TPS6286Bxx Step-Down Converters
Published: 2025-03-25 | Updated: 2025-05-06