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Texas Instruments TPS55289 8A Buck-Boost Converter is a synchronous buck-boost converter optimized for converting adapter or battery voltage into power supply rails. The TPS55289 integrates four MOSFET switches, which provides a compact solution for the USB power delivery (USB PD) application. The Texas Instruments TPS55289 has up to 30V input voltage capability. The output voltage can be programmed from 0.8V to 22V with a 10mV step through the I2C interface. The device can deliver 60W from 12V input voltage when working in boost mode. It is capable of providing 45W from a 9V input voltage.
Features
- Programmable power supply (PPS) support for USB power delivery (USB PD)
- 3.0V to 30V wide input voltage range
- 0.8V to 22V with 10mV step programmable output voltage range
- ±1% reference voltage accuracy
- Adjustable output voltage compensation for voltage droop over the cable
- Programmable output current limit up to 6.35A with 50mA step
- ±5% accurate output current monitoring
- I2C interface
- High efficiency over an entire load range
- 96% efficiency at VIN = 12V, VOUT = 20V, and IOUT = 3A
- Programmable PFM and FPWM mode at light load
- Avoid frequency interference and crosstalk
- Optional clock synchronization
- Programmable switching frequency from 200kHz to 2.2MHz
- EMI mitigation
- Optional programmable spread spectrum
- Lead-less package
- Rich protection features
- Output overvoltage protection
- Hiccup mode for output short-circuit protection
- Thermal shutdown protection
- 8A average inductor current limit
- Small solution size
- Maximum switching frequency up to 2.2MHz
- 3.0mm × 5.0mm HotRod™ QFN package
Published: 2022-10-26
| Updated: 2022-11-04
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