DC-DC Converter for RF Power Amplifier and PoE Applications

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Built with a low-cost proven technology in a 110W output in a 1/16th brick format and has 2250V isolation rating

Excellent for thermal performance, the PKU4116HD through-hole DC-DC converter, a new open-frame module by Flex Power Modules is suitable for pin-in-paste reflow processes for convenient automated assembly, RF power amplifier and Power over Ethernet (PoE) applications.

It comes with 36-60 V input (80 V peak) and fully-regulated 55 V output. Rated at 110 W/2 A output to 50°C ambient with natural convection and to 85°C with additional airflow, it also allows operation to 100°C ambient with derating. Efficiency is high, typically 92.4% at 48 Vin, full load.

The PKU4116HD features monotonic start-up into a pre-biased load, a remote-control function, and full protection against over-temperature, input under-voltage, output over-voltage and over-current. Standby power is typically 0.5W.

Input/output isolation is 2250VDC and is compliant with IEC/EN/UL 62368-1. Along with the 55V output, this makes the part particularly suitable for Power over Ethernet (PoE) applications as well as a supply for RF power amplifiers in microwave radio systems and small cells. EN 55022/32, CISPR 22 and FCC part 15J conducted EMC levels can be met with a simple external filter network.

The the PKU4116HD series is available in 1/16th brick format having size 33.02mm x 22.86mm x 9.8mm.


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