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SVLHF2800S DC-DC Converter

The SVLHF Series of space qualified DC-DC converters is specifically designed for the harsh radiation environment of space applications. Performance is guaranteed through the use of hardened semiconductor components, radiation lot acceptance testing (RLAT) of non-hardened components, and analysis. The SVLHF Series has been characterized for Total Ionizing Dose (TID) performance including Enhanced Low Dose Rate Sensitivity (ELDRS) and for Single Event Effects (SEE) according to VPT’s DLA-approved Radiation Hardness Assurance (RHA) plan per MIL-PRF-38534, Appendix G, Level L. Characterization is performed at both the component level and at the SVLHF Series hybrid converter level.

Radiation-hardened to TID levels of 60 krad(Si) and SEE to 85 MeV/mg/cm2, the SVLHF Series of DC-DC converters is suited for use in many low Earth orbit (LEO), medium Earth orbit (MEO), geostationary orbit (GEO), deep space, and launch vehicle programs.

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

Space-Level Characterizations:

  • Guaranteed TID performance to 60 krad(Si) including LDR
  • SEE performance to 85 MeV/mg/cm2. Transients are fully characterized for cross section and magnitude
  • Worst-case analysis, stress, radiation, reliability reports available

Compliances and Certifications:

  • Qualified to MIL-PRF-38534 Class H and Class K, DLA SMD # TBD
  • MIL-PRF-38534 element evaluated components
  • MIL-STD-461 C/D/E/F when used with appropriate VPT EMI filter
  • Manufactured in a MIL-PRF-38534 Class H and Class K facility
  • MIL-STD-883
  • ISO-9001

Summary Data

For complete specifications, please see the official datasheet.

To provide you with the most accurate data for the actual performance of this product once deployed, please note that the electrical performance data provided below is at Tcase = -55° C to 125° C, Vin= +28V +-5%, full load, unless otherwise specified.

Select a product to view its specifications:

ParameterConditionsSVLHF283R3SUnits
MinTypMax
Input
Voltage
Continuous
Transient(1)
152850
80
Vdc
Output
Voltage
Full Load3.253.33.350Vdc
Output
Power
Vin: 15-50V0 10W
EfficiencyVin: 28V,
Full Load
6772 %
Input
Ripple
Full Load, 20Hz to
10MHz
 2580mApp
Output
Ripple
Full Load,
20Hz to 10MHz
 2040mVpp
Load
Regulation
No Load to
Full
 2050mV
Line
Regulation
Vin: 15 to 50V 220mV

ParameterConditionsSVLHF2805SUnits
MinTypMax
Input
Voltage
Continuous
Transient(1)
152850
80
Vdc
Output
Voltage
Full Load4.92555.075Vdc
Output
Power
Vin: 15-50V0 15W
EfficiencyVin: 28V,
Full Load
7278 %
Input
Ripple
Full Load, 20Hz to
10MHz
 2580mApp
Output
Ripple
Full Load,
20Hz to 10MHz
 2040mVpp
Load
Regulation
No Load to
Full
 2550mV
Line
Regulation
Vin: 15 to 50V 220mV

ParameterConditionsSVLHF2812SUnits
MinTypMax
Input
Voltage
Continuous
Transient(1)
152850
80
Vdc
Output
Voltage
Full Load11.751212.25Vdc
Output
Power
Vin: 15-50V0 20W
EfficiencyVin: 28V,
Full Load
7782 %
Input
Ripple
Full Load, 20Hz to
10MHz
 3080mApp
Output
Ripple
Full Load,
20Hz to 10MHz
 2040mVpp
Load
Regulation
No Load to
Full
 1050mV
Line
Regulation
Vin: 15 to 50V 220mV

ParameterConditionsSVLHF2815SUnits
MinTypMax
Input
Voltage
Continuous
Transient(1)
152850
80
Vdc
Output
Voltage
Full Load14.71515.3Vdc
Output
Power
Vin: 15-50V0 20W
EfficiencyVin: 28V,
Full Load
7884 %
Input
Ripple
Full Load, 20Hz to
10MHz
 3080mApp
Output
Ripple
Full Load,
20Hz to 10MHz
 2040mVpp
Load
Regulation
No Load to
Full
 1050mV
Line
Regulation
Vin: 15 to 50V 220mV

Subject to all export restrictions and export regulations including but not limited to the Export Administration and Foreign Assets Control Regulations. Further restrictions may apply; contact VPT for details.
 
VPT, Inc.