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TPS55189-Q1

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Automotive, 27V 8A buck-boost converter with I²C interface

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Data sheet

TPS55189-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Topology Buck-Boost Vin (max) (V) 27 Vin (min) (V) 3 Vout (max) (V) 22 Vout (min) (V) 0.8 Switch current limit (typ) (A) 8 Features Adjustable current limit, Dynamic voltage scaling, Enable, Frequency synchronization, I2C interface, Light-load efficiency, Load Disconnect, Output discharge, Spread Spectrum, Synchronous rectification, USB C/PD compatible, UVLO adjustable EMI features Frequency Dithering, Spread Spectrum Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00076 Duty cycle (max) (%) 100 TI functional safety category Functional Safety-Capable
Rating Automotive Topology Buck-Boost Vin (max) (V) 27 Vin (min) (V) 3 Vout (max) (V) 22 Vout (min) (V) 0.8 Switch current limit (typ) (A) 8 Features Adjustable current limit, Dynamic voltage scaling, Enable, Frequency synchronization, I2C interface, Light-load efficiency, Load Disconnect, Output discharge, Spread Spectrum, Synchronous rectification, USB C/PD compatible, UVLO adjustable EMI features Frequency Dithering, Spread Spectrum Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00076 Duty cycle (max) (%) 100 TI functional safety category Functional Safety-Capable
VQFN-HR (RYQ) 21 15 mm² 5 x 3
  • AEC-Q100 qualified:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
  • Functional Safety-Capable
  • Programmable power supply (PPS) support for USB power delivery (USB PD)
    • Wide input voltage range: 3.0V to 27V (absolute maximum.42V)
    • Programmable output voltage range: 0.8V to 22V with 10mV step
    • ±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 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
  • AEC-Q100 qualified:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
  • Functional Safety-Capable
  • Programmable power supply (PPS) support for USB power delivery (USB PD)
    • Wide input voltage range: 3.0V to 27V (absolute maximum.42V)
    • Programmable output voltage range: 0.8V to 22V with 10mV step
    • ±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 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

The TPS55189-Q1 is a synchronous buck-boost converter that is optimized for converting battery voltage or adapter voltage into power supply rails. The TPS55189-Q1 integrates four MOSFET switches providing a compact solution for USB Power Delivery (USB PD) application.

The TPS55189-Q1 has up to 27V input voltage capability. Through the I2C interface, the output voltage of the TPS55189-Q1 can be programmed from 0.8V to 22V with 10mV step. When working in boost mode, it can deliver 60W from a 12V input voltage. It is capable of delivering 45W from 9V input voltage.

The TPS55189-Q1 employs an average current-mode control scheme. The switching frequency is programmable from 200kHz to 2.2MHz by an external resistor and can be synchronized to an external clock. The TPS55189-Q1 also provides optional spread spectrum to minimize peak EMI.

The TPS55189-Q1 offers output over-voltage protection, average inductor current limit, cycle-by-cycle peak current limit and output short circuit protection. The TPS55189-Q1 also ensures safe operating with optional output current limit and hiccup-mode protection in sustained overload conditions.

The TPS55189-Q1 can use a small inductor and small capacitors with high switching frequency. It is available in a 3.0mm × 5.0mm QFN package.

The TPS55189-Q1 is a synchronous buck-boost converter that is optimized for converting battery voltage or adapter voltage into power supply rails. The TPS55189-Q1 integrates four MOSFET switches providing a compact solution for USB Power Delivery (USB PD) application.

The TPS55189-Q1 has up to 27V input voltage capability. Through the I2C interface, the output voltage of the TPS55189-Q1 can be programmed from 0.8V to 22V with 10mV step. When working in boost mode, it can deliver 60W from a 12V input voltage. It is capable of delivering 45W from 9V input voltage.

The TPS55189-Q1 employs an average current-mode control scheme. The switching frequency is programmable from 200kHz to 2.2MHz by an external resistor and can be synchronized to an external clock. The TPS55189-Q1 also provides optional spread spectrum to minimize peak EMI.

The TPS55189-Q1 offers output over-voltage protection, average inductor current limit, cycle-by-cycle peak current limit and output short circuit protection. The TPS55189-Q1 also ensures safe operating with optional output current limit and hiccup-mode protection in sustained overload conditions.

The TPS55189-Q1 can use a small inductor and small capacitors with high switching frequency. It is available in a 3.0mm × 5.0mm QFN package.
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* Data sheet TPS55189-Q1 27V, 8A Buck-Boost Converter with I2 C Interface datasheet PDF | HTML 28 May 2024
Functional safety information TPS55189-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 29 May 2024

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Evaluation board

TPS55289Q1EVM — TPS55289-Q1 evaluation module

This evaluation module contains the TPS55289-Q1 device, which is a high-performance high-efficiency synchronous buck-boost converter that integrates four MOSFETs. The TPS55289-Q1 is optimized for converting battery voltage or adaptor voltage into power supply rails. The TPS55289-Q1 uses I²C (...)
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VQFN-HR (RYQ) 21 Ultra Librarian
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