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Texas Instruments TPS63810/TPS63811 2.5A Buck-Boost Converters

Texas Instruments TPS63810/TPS63811 2.5A Buck-Boost Converters are high-efficiency and high-output current devices fully programmable through I2C. Depending on the input voltage, the TPS63810/TPS63811 Converters automatically operate in boost, buck, or in a novel 4-cycle buck-boost mode.

The TPS63810/TPS63811 reduces output voltage ripple when the transitions between modes happen at defined thresholds and avoids unwanted toggling. Two registers, accessible through I2C, set the output voltage, and a VSEL pin selects which output voltage register is active. This feature allows the devices to support dynamic voltage scaling. The Texas Instruments TPS63810/TPS63811 2.5A Buck-Boost Converters transits in a defined, programmable ramp rate if the output voltage register changes during operation or the VSEL pin is toggled.

Features

  • Input voltage range: 2.2V to 5.5V
  • Output voltage range: 1.8V to 5.2V
    • I2C-configurable during operation and shutdown
    • VSEL pin to toggle between two output voltage presets
  • Output current
    • Up to 2.5A for VI ≥ 2.5V, VO = 3.3V
    • Up to 2.5A for VI ≥ 2.8V, VO = 3.5V
  • High efficiency over the entire load range
    • Low 13μA operating quiescent current
    • Automatic power save mode and forced PWM mode (I2C-configurable)
  • Peak current-mode buck-boost architecture
    • Defined transitions between buck, buck-boost, and boost operation
    • Forward and reverse current operation
    • Start-up into pre-biased outputs
  • Safety and robust operation features
    • Integrated soft start
    • Overtemperature and overvoltage protection
    • True load disconnect during shutdown
    • Forward and backward current limit
  • Two device options:
    • TPS63810: Pre-programmed output voltages (3.3V, 3.45V)
    • TPS63811: Program output voltages before start-up
  • Solution size of <20mm2 with only four external components

Applications

  • System pre-regulator (smartphone, tablet, tracking and telematics, EPOS, TWS earphones, medical hearing aids)
  • Point-of-load regulation (Time-of-Flight camera sensors, port/cable adapter, and dongle)
  • Thermoelectric device supply (TEC, optical modules)
  • Broadband network radio or SoC supply (IoT, home automation, EPOS)

Simplified Schematic

Schematic - Texas Instruments TPS63810/TPS63811 2.5A Buck-Boost Converters

Block Diagram

Block Diagram - Texas Instruments TPS63810/TPS63811 2.5A Buck-Boost Converters
Published: 2020-01-24 | Updated: 2024-05-13