28V SVL Series with Wide Input Voltage Range and No Power Derating for Space Applications

VPT, Inc. has announced the availability of its SVL series of 28 volts, space-qualified DC-DC converters with a wide input voltage range of 15V to 50V, designed specifically for space applications facing harsh radiation environments. This series is operable over the full military temperature range (-55 °C to +125 °C) with no power derating and is suited for use in low Earth orbit (LEO), medium Earth orbit (MEO), geostationary orbit (GEO), deep space missions, and launch vehicle programs. This Series is characterized by Total Ionizing Dose (TID) performance and includes Enhanced Low Dose Rate Sensitivity (ELDRS).

SVLFL, SVLHF, SVLTR, and SVLSA Series come with guaranteed performance through the use of hardened semiconductor components, radiation lot acceptance testing (RLAT) of non-hardened components, and analysis. The SVLFL and SVLTR are qualified to MIL-PRF-38534 Class H and Class K, and Radiation Hardness Assurance (RHA) Level R, while the SVLHF and SVLSA have been submitted for qualification.

Features

• Single outputs of +3.3 V / 10W, +5 V / 15W, +12 V / 20W, +15 V / 20W

• Wide input voltage range: 15 V to 50 V plus 80 V transient

• Continuous operation over full military temperature range of -55 °C to +125 °C with no power derating

• Very low output noise

• Radiation immune magnetic feedback circuit

• No use of optoisolators

• Undervoltage lockout

• Current limit protection / short circuit protection

Applications

• Space applications