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SVLSA2800S DC-DC Converter

The SVLSA 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 SVLSA 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 SVLSA 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:

  • Up to 6 W output power
  • 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
  • Parallel up to 5 units with current sharing
  • Output voltage trim up +10% or down -20%
  • 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 krads (Si) including ELDRS.
  • 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 K on DLA SMD# TDB
  • 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 military and space environmental screening
  • 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:

ParameterConditionsSVLSA283R3SUnits
MinTypMax
Input
Voltage
Continuous
Transient
(1)
152850
80
Vdc
Output
Voltage
Full Load3.2673.33.333Vdc
Output
Power
Vin: 16-50V0 4W
EfficiencyVin: 28V,
Full Load
6165 %
Input RippleFull Load,
20Hz to 10MHz
 2550mApp
Output RippleFull Load,
20Hz to 10MHz
 30mVpp
Load
Regulation
No Load to
Full
 150mV
Line
Regulation
Vin: 16-40V 115mV

ParameterConditionsSVLSA2805SUnits
MinTypMax
Input
Voltage
Continuous
Transient
(1)
152850
80
Vdc
Output
Voltage
Full Load4.95055.050Vdc
Output
Power
Vin: 16-50V0 5W
EfficiencyVin: 28V,
Full Load
6570 %
Input RippleFull Load,
20Hz to 10MHz
 3050mApp
Output RippleFull Load,
20Hz to 10MHz
 30mVpp
Load
Regulation
No Load to
Full
 150mV
Line
Regulation
Vin: 16-40V 115mV

ParameterConditionsSVLSA285R2SUnits
MinTypMax
Input
Voltage
Continuous
Transient
(1)
152850
80
Vdc
Output
Voltage
Full Load5.1455.25.252Vdc
Output
Power
Vin: 16-50V0 5.2W
EfficiencyVin: 28V,
Full Load
6570 %
Input RippleFull Load,
20Hz to 10MHz
 3050mApp
Output RippleFull Load,
20Hz to 10MHz
 1030mVpp
Load
Regulation
No Load to
Full
 1550mV
Line
Regulation
Vin: 16-40V 215mV

ParameterConditionsSVLSA2812SUnits
MinTypMax
Input
Voltage
Continuous
Transient
(1)
152850
80
Vdc
Output
Voltage
Full Load11.8801212.120Vdc
Output
Power
Vin: 16-50V0 6W
EfficiencyVin: 28V,
Full Load
7177 %
Input RippleFull Load,
20Hz to 10MHz
 3060mApp
Output RippleFull Load,
20Hz to 10MHz
 1030mVpp
Load
Regulation
No Load to
Full
 550mV
Line
Regulation
Vin: 16-40V 215mV

ParameterConditionsSVLSA2815SUnits
MinTypMax
Input
Voltage
Continuous
Transient
(1)
152850
80
Vdc
Output
Voltage
Full Load14.8501515.150Vdc
Output
Power
Vin: 16-50V0 6W
EfficiencyVin: 28V,
Full Load
7278.5 %
Input RippleFull Load,
20Hz to 10MHz
 3560mApp
Output RippleFull Load,
20Hz to 10MHz
 1030mVpp
Load
Regulation
No Load to
Full
 550mV
Line
Regulation
Vin: 16-40V 215mV

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.