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12A synchronous buck regulator features PMBus interface

Posted: 19 Mar 2014     Print Version  Bookmark and Share

Keywords:Texas Instruments  buck regulator  MOSFET  ASIC  PMBus 

Texas Instruments (TI) has debuted what it says is the industry's smallest 12A, synchronous DC/DC buck converter with PMBus interface. The SWIFT TPS53915 converter features a tiny PowerStack QFN package and integrated NexFET MOSFETs to drive ASICs in space-constrained and power-dense applications such as wired and wireless communications, enterprise/cloud computing and storage systems.

Used in conjunction with TI's WEBENCH online design tools, the TPS53915 claims to simplify power conversion and speeds the design process. The device likewise offers no external compensation, internal soft start, input under-voltage protection, internal bootstrap capacitor and thermal shutdown.

SWIFT TPS53915 converter

The highly integrated converter features 0.5 per cent reference voltage accuracy to meet voltage requirements of deep sub-micron processors. D-CAP3 adaptive on-time control mode is easy to use, provides very fast load transient response and reduces external component count, TI stated. Programmability and fault reporting via PMBus simplifies power supply design and further reduces component count. For analog applications without PMBus control, TI offers the SWIFT 8-A TPS53513 and 12-A TPS53515 pin-to-pin compatible buck converters.

The TPS53915 DC/DC converter is available in a 28-pin, 3.5 x 4.5 x 1mm PowerStack QFN package in volume from TI and its authorized distributors. It is priced at $3.51 in 1,000-unit quantities.





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