Power Electronics / Power Management


10 A buck converter

19 August 2009 Power Electronics / Power Management

Texas Instruments has introduced a fully integrated, 10 A synchronous buck converter with integrated FETs that combines wide input, light load efficiency and reduced solution size to enable increased power density.

The TPS51315, a 1 MHz DC-DC switcher, features D-CAP mode control scheme, which allows for fast transient response while reducing the required number of external output capacitors. This converter helps designers meet Energy Star/90 Plus guidelines by utilising auto-skip mode and Eco-mode light load control schemes to achieve high efficiency across the entire load range. Its wide input and output voltage ranges and programmable switching frequency can enable designers to meet the requirements of power-dense applications in embedded PCs, notebooks and other computing applications, as well as base stations and network attached storage.

An input voltage of 3 to 14 V and an output voltage range of 0,75 to 5,5 V allow for flexible design in 3,3 V, 5 V and 12 V power systems and can power various components, such as DSPs, FPGAs, ASICs, I/O and DDR memory cores. Integrated power MOSFETs enable efficiency of more than 91% at full 10 A output current.



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