Satellite set-top box power converter – TPS65235RUKT
It accepts an input from 4.5V to 16V and delivers regulated outputs at 13.4V and 18.2V — two rails from one chip, which simplifies the downstream power tree and reduces BOM count.
Input headroom and dual-rail output
With a 4.5V minimum input, the part can run off a 5V rail or a 12V brick, while the 16V ceiling covers most intermediate bus voltages in set-top designs. The 13.4V and 18.2V outputs are typical for powering tuner front-ends and LNB supply circuits — check your load current against the datasheet's output capability before committing the BOM. Compared to the TPS51100DGQ (a DDR converter with a 4.75V input and 1.2V supply), the TPS65235RUKT targets a different application — satellite power rather than memory termination. The TPS53317RGBR (D-CAP+ DDR converter) also serves DDR rails. Neither is a drop-in second source for this part; the TPS65235RUKT is purpose-built for the 13.4V/18.2V satellite rail requirement.
Active production, ROHS3, and 20-WQFN package
ROHS3 compliance is confirmed, so it passes lead-free assembly requirements without exemption paperwork.
Sourcing and ordering for TPS65235RUKT
For a firm price and delivery estimate, submit an RFQ with your target quantity and preferred date code. The active lifecycle means no last-time-buy pressure, but satellite set-top box designs often run for years — securing a multi-year supply agreement early avoids mid-production surprises.