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30A buck converter offers high efficiency, fast transient response

Posted: 21 Sep 2011     Print Version  Bookmark and Share

Keywords:buck converter  transient protection  MOSFETs 

Texas Instruments Inc. (TI) has introduced the TPS53355, a synchronous 15V step-down regulator with integrated MOSFETs that achieves 90 percent power efficiency at 30A, 12Vin, 1.5Vout at 500kHz and fast transient response. The TPS53355 features a small 5x6mm PowerStack QFN package that touts 20 percent smaller solution as compared to other products.

According to the company, the TPS53355 converter delivers high performance to low-output voltage, high-current applications that demand increased power density such as notebook and embedded computers, servers, storage and telecommunication systems.

The TPS53355 30A regulator uses a D-CAP mode control to achieve a transient response of up to 2A/µs, which is 20 percent faster than other solutions that use current or voltage mode control. The D-CAP mode control also minimises the use of external components and requires no loop compensation.

The TPS53355 has accurate power delivery with 1 percent voltage regulation accuracy. It offers light-load efficiency with Eco-Mode auto-skip operation. It also comes in the smallest solution size with selectable switching frequency range of 250kHz to 1MHz.

For samples, SwitcherPro simulation model, and evaluation module visit TI's website.





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