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TPS55289 Series

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

Manufacturer: Texas Instruments

Catalog(2 parts)

PartMounting TypeFunctionSynchronous RectifierSupplier Device PackageVoltage - Input (Min)Operating TemperatureOperating TemperatureOutput TypeVoltage - Output (Max)Frequency - SwitchingFrequency - SwitchingTopologyVoltage - Input (Max)Output ConfigurationCurrent - OutputCurrent - OutputNumber of OutputsVoltage - Output (Min/Fixed)QualificationGrade
Texas Instruments
TPS55289RYQR
Buck-Boost Switching Regulator IC Positive Adjustable 0.8V 1 Output 6.35A (Switch) 21-PowerVFQFN
Surface Mount
Step-Up/Step-Down
21-VQFN-HR (3x5)
3 V
125 °C
-40 °C
Adjustable
22 V
2200000 Hz
200000 Hz
Buck-Boost
30 V
Positive
6.349999904632568 A
Switch
1 ul
0.800000011920929 V
Texas Instruments
TPS55289QWRYQRQ1
Buck-Boost Switching Regulator IC Positive Adjustable 0.8V 1 Output 5A 21-PowerVFQFN
Surface Mount, Wettable Flank
Step-Up/Step-Down
21-VQFN-HR (3x5)
3 V
125 °C
-40 °C
Adjustable
22 V
2200000 Hz
200000 Hz
Buck-Boost
36 V
Positive
5 A
1 ul
0.800000011920929 V
AEC-Q100
Automotive

Key Features

AEC-Q100 qualified:Device temperature grade 1: –40°C to +125°C ambient operating temperature rangeFunctional Safety-CapableDocumentation available to aid functional safety system designProgrammable power supply (PPS) support for USB power delivery (USB PD)Wide input voltage range: 3.0V to 36VProgrammable output voltage range: 0.8V to 22V with 10mV step±1% reference voltage accuracyAdjustable output voltage compensation for voltage droop over the cableProgrammable output current limit up to 6.35A with 50mA step±5% accurate output current monitoringI2C interfaceHigh efficiency over entire load range96% efficiency at VIN = 12V, VOUT = 20V and IOUT = 3AProgrammable PFM and FPWM mode at light loadAvoid frequency interference and crosstalkOptional clock synchronizationProgrammable switching frequency from 200kHz to 2.2MHzEMI mitigationOptional programmable spread spectrumLead-less packageRich protection featuresOutput overvoltage protectionHiccup mode for output short-circuit protectionThermal shutdown protection8A average inductor current limitSmall solution sizeMaximum switching frequency up to 2.2MHz3.0mm × 5.0mm HotRod™ QFN packageAEC-Q100 qualified:Device temperature grade 1: –40°C to +125°C ambient operating temperature rangeFunctional Safety-CapableDocumentation available to aid functional safety system designProgrammable power supply (PPS) support for USB power delivery (USB PD)Wide input voltage range: 3.0V to 36VProgrammable output voltage range: 0.8V to 22V with 10mV step±1% reference voltage accuracyAdjustable output voltage compensation for voltage droop over the cableProgrammable output current limit up to 6.35A with 50mA step±5% accurate output current monitoringI2C interfaceHigh efficiency over entire load range96% efficiency at VIN = 12V, VOUT = 20V and IOUT = 3AProgrammable PFM and FPWM mode at light loadAvoid frequency interference and crosstalkOptional clock synchronizationProgrammable switching frequency from 200kHz to 2.2MHzEMI mitigationOptional programmable spread spectrumLead-less packageRich protection featuresOutput overvoltage protectionHiccup mode for output short-circuit protectionThermal shutdown protection8A average inductor current limitSmall solution sizeMaximum switching frequency up to 2.2MHz3.0mm × 5.0mm HotRod™ QFN package

Description

AI
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.