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TPS55289-Q1

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AEC-Q100 qualified, 36-V 8-A fully integrated buck-boost converter with I²C interface

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Data sheet

TPS55289-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Buck-Boost Type Converter Vin (min) (V) 3 Vin (max) (V) 36 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 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 Vout (min) (V) 0.8 Vout (max) (V) 22 Iq (typ) (µA) 760 Duty cycle (max) (%) 100 Switch current limit (typ) (A) 8
Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable Topology Buck-Boost Type Converter Vin (min) (V) 3 Vin (max) (V) 36 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 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 Vout (min) (V) 0.8 Vout (max) (V) 22 Iq (typ) (µA) 760 Duty cycle (max) (%) 100 Switch current limit (typ) (A) 8
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 36V
    • 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 36V
    • 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 TPS55289-Q1 is a synchronous buck-boost converter that is optimized for converting battery voltage or adapter voltage into power supply rails. The TPS55289-Q1 integrates four MOSFET switches providing a compact solution for USB Power Delivery (USB PD) application.

The TPS55289-Q1 has up to 36V input voltage capability. Through the I2C interface, the output voltage of the TPS55289-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 TPS55289-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 TPS55289-Q1 also provides optional spread spectrum to minimize peak EMI.

The TPS55289-Q1 offers output over-voltage protection, average inductor current limit, cycle-by-cycle peak current limit and output short circuit protection. The TPS55289-Q1 also ensures safe operating with optional output current limit and hiccup-mode protection in sustained overload conditions.

The TPS55289-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 TPS55289-Q1 is a synchronous buck-boost converter that is optimized for converting battery voltage or adapter voltage into power supply rails. The TPS55289-Q1 integrates four MOSFET switches providing a compact solution for USB Power Delivery (USB PD) application.

The TPS55289-Q1 has up to 36V input voltage capability. Through the I2C interface, the output voltage of the TPS55289-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 TPS55289-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 TPS55289-Q1 also provides optional spread spectrum to minimize peak EMI.

The TPS55289-Q1 offers output over-voltage protection, average inductor current limit, cycle-by-cycle peak current limit and output short circuit protection. The TPS55289-Q1 also ensures safe operating with optional output current limit and hiccup-mode protection in sustained overload conditions.

The TPS55289-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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Technical documentation

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Type Title Date
* Data sheet TPS55289-Q1 36V, 8A Buck-Boost Converter with I2 C Interface datasheet PDF | HTML 11 Dec 2023
EVM User's guide TPS55289Q1EVM-011 Buck-Boost Converter Evaluation Module User's Guide PDF | HTML 04 Dec 2023
Functional safety information TPS55289-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 01 Dec 2023
Certificate TPS55289Q1EVM EU Declaration of Conformity (DoC) 08 Nov 2023

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS55289EVM — TPS55289 evaluation module for 36-V, 8-A/4-A, I²C fully integrated buck-boost converter

The TPS55289 is a synchronous buck-boost converter that is optimized for converting battery voltage or adaptor voltage into power supply rails. The TPS55289 integrates four MOSFET switches providing a compact solution for USB Power Delivery (USB PD) application.

User guide: PDF | HTML
Not available on TI.com
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 (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS55289 Encrypted PSpice Model

SLVMDY0.ZIP (213 KB) - PSpice Model
Download
Reference designs

PMP41092 — CISPR 25 Class 5, 400kHz-rated, 60W automotive dual USB Type-C® and USB PD charger reference desi

This reference design is a 60W automotive charger for dual USB Type-C® power delivery (PD) with 45W maximum power per port. The TPS25772-Q1 is used as a dual USB Type-C PD controller with a buck-boost regulator. The TPS55289-Q1 is used as a buck-boost regulator for another port. The board maximum (...)
Test report: PDF
Package Pins CAD symbols, footprints & 3D models
VQFN-HR (RYQ) 21 Ultra Librarian
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