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Introduction, characteristics, and applications of Texas Instruments TPS552872-Q1 fully integrated buck converter

2/12/2024 9:05:01 AM

Summary: This device is optimized to convert battery or adapter voltage to the power rails.

TPS552872-Q1 Texas Instruments

Texas Instruments TPS552872-Q1 fully integrated buck converter is optimized for converting battery or adapter voltage to the power rail. The TPS552872-Q1 integrates four MOSFET switches to provide a compact solution for a variety of applications. The TPS552872-Q1 has input voltage capability up to 36V. When operating in boost mode, the TPS552872-Q1 can output 30W from a 12V input. It is capable of delivering 25W from a 9V input voltage.

The TPS552872-Q1 uses an average current mode control scheme. The switching frequency is programmable from 200kHz to 2.2MHz with external resistors and can be synchronized to an external clock. The TPS552872-Q1 also offers optional spread spectrum to minimize peak EMI.

The TPS552872-Q1 provides output overvoltage protection, average inductor current limit, cycle-by-cycle peak current limit, and output short-circuit protection. The TPS552872-Q1 also features selectable output current limit and hiccup mode protection under sustained overload conditions to ensure safe operation.

Texas Instruments TPS552872-Q1 uses small inductors and small capacitors and has high switching frequency. It comes in a 3.0mm × 5.0mm QFN package.


characteristic

  • AEC-Q100 qualified

    • Equipment temperature level 1 (environmental operating temperature range -40℃~ +125℃)

  • Wide input and output voltage range

    • 3.0V to 36V wide input voltage range

    • Programmable output voltage range from 0.8V to 22V

    • ±1% reference voltage accuracy

    • Adjustable output voltage compensates for voltage drops across the cable

    • ±5% accurate output current monitoring

  • High efficiency over the entire load range

    • Efficiency is 96.7% at V(IN) = 12V, V(OUT) = 20V, I(OUT) = 1.5A

    • Efficiency is 98.3% at V(IN) = 12V, V(OUT) = 12V, I(OUT) = 2A

    • Programmable PFM and FPWM modes 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

    • makes no package

  • Rich protection functions

    • Output overvoltage protection

    • Output short circuit protection hiccup mode

    • Thermal shutdown protection

    • 4A average inductor current limit

  • Small solution volume

    • The maximum switching frequency can reach 2.2MHz

    • 3.0mm × 5.0mm HotRod QFN package


app

  • Advanced driver assistance system (ADAS)

  • Wireless charger

  • Automotive Infotainment and Clusters

  • car tail light


Functional block diagram


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