New family of adaptable buck-boost converters in a tiny footprint to shrink board space

18-10-2019 | Texas Instruments | Power

Texas Instruments introduces a family of four high-efficiency, low-quiescent-current (IQ) buck-boost converters that offer tiny packaging with minimal external components for a very small solution size. The integrated TPS63802, TPS63805, TPS63806 and TPS63810 DC-DC non-inverting buck-boost converters provide wide input and output voltage range that scale to support various battery-driven applications, assisting engineers to simplify and expedite their designs.


All of the devices in the family automatically chooses buck, buck-boost or boost mode depending on the operating conditions. Their complete solution size of 19.5mm2 to 25mm2 – up to 25% smaller than similar devices – is due to compact packaging, an advanced control topology needing few external multilayer ceramic capacitors, and tiny 0.47µH inductors. The devices provide a wide 1.3V to 5.5V input and 1.8V to 5.2V output voltage range, which assists engineers to speed their designs and promotes reuse across multiple applications.


These DC-DC converters are a recent addition to the company’s low-IQ power-management portfolio, offering low 11 to 15µA IQ for superior light-load efficiency while reducing power losses and increasing run times in battery-driven applications such as grid infrastructure metering devices, portable electronic point-of-sale terminals, wireless sensors and handheld electronic devices.

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