Texas Instruments TPS61299/TPS61299-Q1 5.5V Boost Converter

Texas Instruments TPS61299/TPS61299-Q1 5.5V Boost Converter is a synchronous boost converter with a 95nA ultra-low quiescent current and average input current limit. The device provides a power solution for portable equipment with an alkaline and coin cell battery. This device has high efficiency under light-load conditions to achieve long operation time, and the average input current limit can avoid battery discharging with high current.

The TPS61299/TPS61299-Q1 has a wide input voltage range from 0.5V to 5.5V and an output voltage range from 1.8V to 5.5V. The device has different versions for the average input current limit from 5mA to 1.9A. The TPS61299/TPS61299-Q1 with a 1.2A current limit can support up to 500mA output current from 3V to 5V conversion and achieve approximately 94% efficiency at 200mA load.

The Texas Instruments TPS61299/TPS61299-Q1 has optional fast-load transient performance at an output voltage of 4.5V, 5V, or 5.5V. In fast-load transient, the typical setting time is 8µs when the output current transient is from 0A to 200mA. The TPS61299 supports an optional force pass-through or true shutdown function when disabled, which is flexible for an always-on system. The Texas Instruments TPS61299/TPS61299-Q1 offers a very small solution size with a 6-ball 1.2mm x 0.8mm WCSP package and a 6-pin 1.6mm x 0.6mm SOT563 package. The TPS61299-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

  • 0.5V to 5.5V input voltage range
  • 0.7V minimum input voltage for start-up
  • Input operating voltage down to 150mV with signal VIN > 0.7V
  • Output voltage range of 1.8V to 5.5V VSEL pin select output voltage
  • Average input current limit is available in 5mA, 25mA, 50mA, 100mA, 250mA, 500mA, 1.2A, and 1.9A different versions
  • 95nA typical quiescent current from VOUT
  • 60nA typical shutdown current from VIN and SW
  • Up to 91 % efficiency at VIN = 3.6V, VOUT = 5V, and IOUT = 10µA
  • Up to 94 % efficiency at VIN = 3.6V, VOUT = 5V, and IOUT = 200mA
  • Fast transient performance has a setting time of ~ 8µs at VIN = 3.6V, VOUT = 5V, IOUT = 0A -> 200mA
  • True disconnection at EN low
  • Automatic PFM/PWM mode transition
  • Auto pass-through at VIN > VOUT
  • Output SCP and thermal shutdown protections
  • 6-Pin WCSP (1.2mm x 0.8mm) / SOT563 package (1.6mm x 1.6mm)

Applications

  • Smartwatch
  • Smartband
  • Portable medical equipment
  • TWS

Functional Block Diagram

Block Diagram - Texas Instruments TPS61299/TPS61299-Q1 5.5V Boost Converter

Texas Instruments TPS61299/TPS61299-Q1 5.5V Boost Converter