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Texas Instruments TPS55288/TPS55288-Q1 Synchronous Four-Switch Buck-Boost Converter is capable of regulating the output voltage at, above, or below the input voltage. The TPS55288 operates over 2.7V to 36V wide input voltage and capable of outputing 0.8V to 22V voltage to support a variety of applications. The TPS55288/TPS55288-Q1 integrates two 16A MOSFETs of the boost leg to balance the solution size and efficiency. With the programmable output voltage and output current limit through an I2C interface, the TPS55288 is fully compliant to the USB PD specification. The TPS55288/TPS55288-Q1 is capable of delivering 100W from 12V input voltage.
The Texas Instruments TPS55288/TPS55288-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 TPS55288/TPS55288-Q1 also provides an optional spread spectrum to minimize peak EMI. The TPS55288/TPS55288-Q1 offers output over-voltage protection, average inductor current limit, cycle-by-cycle peak current limit, and output short circuit protection. The TPS55288/TPS55288-Q1 also ensures safe operating with optional output current limit and hiccup-mode protection in sustained overload conditions. The TPS55288/TPS55288-Q1 can use a small inductor and small capacitors with high switching frequency. It is available in 4.0mm × 3.5mm QFN package. The TPS55288-Q1 devices are AEC-Q100 qualified for automotive applications.
