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TPS55287

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36V 4A buck-boost converter with I²C interface

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Data sheet

TPS55287

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck-Boost Vin (max) (V) 30 Vin (min) (V) 3 Vout (max) (V) 22 Vout (min) (V) 0.8 Switch current limit (typ) (A) 4 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
Rating Catalog Topology Buck-Boost Vin (max) (V) 30 Vin (min) (V) 3 Vout (max) (V) 22 Vout (min) (V) 0.8 Switch current limit (typ) (A) 4 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
VQFN-HR (RYQ) 21 15 mm² 5 x 3
  • Programmable power supply (PPS) support for USB power delivery (USB PD)
    • 3.0V to 36V 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 with 50mA step
    • ±5% accurate output current monitoring
    • I2C interface
  • High efficiency over entire load range
    • 96.7% efficiency at VIN = 12V, VOUT = 20V, and IOUT = 1.5A
    • 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
    • 4-A average inductor current limit
  • Small solution size
    • Maximum switching frequency up to 2.2MHz
    • 3.0mm × 5.0mm HotRod™ QFN package
  • Programmable power supply (PPS) support for USB power delivery (USB PD)
    • 3.0V to 36V 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 with 50mA step
    • ±5% accurate output current monitoring
    • I2C interface
  • High efficiency over entire load range
    • 96.7% efficiency at VIN = 12V, VOUT = 20V, and IOUT = 1.5A
    • 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
    • 4-A average inductor current limit
  • Small solution size
    • Maximum switching frequency up to 2.2MHz
    • 3.0mm × 5.0mm HotRod™ QFN package

The TPS55287 is a synchronous buck-boost converter that is optimized for converting battery voltage or adapter voltage into power supply rails. The TPS55287 integrates four MOSFET switches, providing a compact solution for USB power delivery (USB PD) application.

The TPS55287 has up to 36V input voltage capability. Through the I2C interface, the output voltage of the TPS55287 can be programmed from 0.8V to 22V with 10mV step. When working in boost mode, the device can deliver 35W from a 12V input. It is capable of delivering 25W from 9V input voltage.

The TPS55287 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 TPS55287 also provides optional spread spectrum to minimize peak EMI.

The TPS55287 offers output overvoltage protection, average inductor current limit, cycle-by-cycle peak current limit, and output short circuit protection. The TPS55287 also makes sure it safely operates with optional output current limit and hiccup-mode protection in sustained overload conditions.

The TPS55287 can use a small inductor and small capacitors with high switching frequency. It is available in a 3.0mm × 5.0mm QFN package.

The TPS55287 is a synchronous buck-boost converter that is optimized for converting battery voltage or adapter voltage into power supply rails. The TPS55287 integrates four MOSFET switches, providing a compact solution for USB power delivery (USB PD) application.

The TPS55287 has up to 36V input voltage capability. Through the I2C interface, the output voltage of the TPS55287 can be programmed from 0.8V to 22V with 10mV step. When working in boost mode, the device can deliver 35W from a 12V input. It is capable of delivering 25W from 9V input voltage.

The TPS55287 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 TPS55287 also provides optional spread spectrum to minimize peak EMI.

The TPS55287 offers output overvoltage protection, average inductor current limit, cycle-by-cycle peak current limit, and output short circuit protection. The TPS55287 also makes sure it safely operates with optional output current limit and hiccup-mode protection in sustained overload conditions.

The TPS55287 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 TPS55287 36-V, 4-A Buck-Boost Converter with I2 C Interface datasheet PDF | HTML 08 Aug 2024

Design & development

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Evaluation board

TPS55287Q1EVM — TPS55287-Q1 evaluation module

The EVM contains the TPS55287-Q1 device, which is a high-performance, high-efficiency synchronous buck-boost converter which integrates four MOSFETs. The TPS55287-Q1 is optimized for converting battery voltage or adaptor voltage into power supply rails. The TPS55287-Q1 uses I2C interface for (...)

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