DC/DC power converters optimised to drive LDO regulators

1st March 2019
Lanna Cooper


TRACO Power has announced the expansion of their THN 15/20/30 WI series of 15, 20 and 30W DC/DC converters in the standard 1.00x1.00x0.40” package with ultra-wide 4-1 input ranges.

These new 15 / 20 / 30W 5Vout models with “-A1” suffix feature an extended trim range up to 6VDC.

The extended trim function up to 6VDC make these DC/DC converters perfect for LDO regulator applications, reducing power losses over the LDO while eliminating almost all ripple and noise components and provide a clean 5VDC output voltage. This makes these converters suitable for providing isolation and regulation for circuits in low noise applications

These compact, high performance 15, 20 and 30W DC/DC converters are the latest generation of DC/DC converters and feature: an ultra-wide 4:1 input range of 9-36 / 18-75 Vin.; full-load operating temperature range of -40°C to +70°C (up to 105°C with derating); input to output isolation of 1,600 VDC and a 6-sided shielded metal case with an insulated base plate.

All models are safety approved to IEC/EN/UL 62368-1 and are qualified to meet EN 55032 Class A conducted emissions limits and will meet Class B limits with the addition of external components.

Reliability is measured at more than 1.6 million hours per MIL-HDBK-2175 and backed by TRACO Power’s three year warranty.

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