Flex Power Modules now offers its PKU-D series of low-profile sixteenth-brick DC-DC converters with the PKU3913D, a 100W rated part with an extended input range down to 30V and regulated output of 12V/8.3 A. The intended application is for nominal inputs of 48V or 54V with possible long cable lengths and consequent voltage drops, including microwave radio links. In this case, the low input drop-out voltage of the part is an advantage to guarantee extended operation, and the input range is also compatible with PoE standard IEEE 802.3af (37-57VDC).
The PKU3913D is developed for high efficiency at lower input voltages, peaking at over 95%. According to Telcordia standards, the parts feature pre-bias, monotonic start-up capability, remote on/off, and an MTBF of 13.88M hours at 40C ambient. Products are certified to IEC/EN/UL 62368-1 for 2250VDC input to output isolation. Comprehensive protection is included against over-temperature, input undervoltage, output overvoltage, over-current and short circuits.
The series is housed in a 33.02mm x 22.86mm footprint and is only 11.3mm high in the open-frame formats, with optional through-hole or SMT termination, or just 12.7mm high for the pinned version with an optional base plate. Size and pin-out is industry-standard.
The series benefits from this long experience and has undergone comprehensive qualification, which guarantees reliable operation together with highly automated manufacturing. Its products are backed up by ISO 9001/14001 certification and excellent technical support.