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POL DC/DC converters tweaked for harsh environments

Posted: 21 Feb 2013 ?? ?Print Version ?Bookmark and Share

Keywords:point-of-load? DC/DC converters? ceramic flatpack?

Texas Instruments has recently introduced what it touts to be the industry's smallest monolithic point-of-load (POL) DC/DC converters. The latest converters have been designed for harsh environments, including radiation tolerant, geological, heavy industrial, and oil and gas applications. The 6.3-V, 6-A TPS50601 and the 6.3-V, 3-A TPS50301 are synchronous step- down converters optimised for small form factor designs.

The devices' current mode control, high switching frequency, and integration of the high- and low-side MOSFETs slash board space by 50 per cent compared to other solutions, reducing the size of equipment needed for tight spaces, such as down-hole drilling.

TI's latest POL DC/DC converters boast peak efficiency of up to 95 per cent results in lower heat dissipation, compared to competitive devices. The devices also boast 100kHz to 1MHz switching frequency and optimised compensation scheme enable designers to make trade-offs between size and efficiency. The TPS50301 is qualified up to +210 C for high temperature applications, while the TPS50601 is qualified up to +125 C for harsh environments with QMLV/RHA qualifications pending.

The TPS50601 and the TPS50301 are sampling now in a 20 pin thermally enhanced dual in-line ceramic flatpack.

Further information regarding the TPS50601 can be found here.

Further information regarding the TPS50301 can be found here.





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