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TPS55285 - 22V 8A Buck-Boost Converter

General Description

The TPS55285 is a fully integrated synchronous buck-boost converter that is optimized for converting battery voltage, USB Power Delivery (USB PD) or adaptor voltage into power supply rails.

The TPS55285 integrates four 15mΩ MOSFETs to provide a high efficiency and small size solution.

Key Features

  • Programmable power supply (PPS) support for USB power delivery (USB PD).
  • Wide input voltage range: 2.4V to 22V.
  • 3.0V Minimum input voltage for start-up.
  • Programmable output voltage range: 0.8V to 15V with 10mV step.
  • ±1% reference voltage accuracy.
  • Adjustable output voltage compensation for voltage drop over the cable.
  • Programmable output current limit up to 6.35A with 50mA step.
  • High efficiency over entire load range.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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TPS55285 SLVSI72A – APRIL 2025 – REVISED OCTOBER 2025 TPS55285 22V, 8A Buck-Boost Converter with I2C Interface 1 Features • Programmable power supply (PPS) support for USB power delivery (USB PD) – Wide input voltage range: 2.4V to 22V – 3.0V Minimum input voltage for start-up – Programmable output voltage range: 0.8V to 15V with 10mV step – ±1% reference voltage accuracy – Adjustable output voltage compensation for voltage drop over the cable – Programmable output current limit up to 6.35A with 50mA step • High efficiency over entire load range – 92.0% efficiency at VIN = 20V, VOUT = 5V and IOUT = 5A – 95.7% efficiency at VIN = 12V, VOUT = 15V and IOUT = 5A • I2C Programming – Output enable(OE) On/Off – Slew rate of output voltage change – Switching frequency: 400kHz, 800kHz, 1.6MHz, 2.