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SVLHF5000D 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:

  • Output Voltage: ±5 V / 15W, ±12 V / 20W, ±15 V / 20W
  • Wide input voltage range: 30 V to 60 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:

ParameterConditions SVLHF5005DUnits
MinTypMax
Input
Voltage
Continuous
Transient(1)
305060
80
Vdc
Output
Voltage
Full Load4.925
4.75
5
5
5.075
5.25
Vdc
Output
Power
Vin: 30-60V0 15W
EfficiencyVin: 50V,
Full Load
7478 %
Input
Ripple
Full Load, 20Hz to
10MHz
 3580mApp
Output
Ripple
Full Load,
20Hz to 10MHz
 50100mVpp
Load
Regulation
No Load to
Full
 5
25
50
200
mV
Line
Regulation
Vin: 15 to 50V 2
20
20
200
mV

ParameterConditions SVLHF5012DUnits
MinTypMax
Input
Voltage
Continuous
Transient(1)
305060
80
Vdc
Output
Voltage
Full Load11.82
11.52
12
12
12.18
12.48
Vdc
Output
Power
Vin: 30-60V0 20W
EfficiencyVin: 50V,
Full Load
7883 %
Input
Ripple
Full Load, 20Hz to
10MHz
 45100mApp
Output
Ripple
Full Load,
20Hz to 10MHz
 50100mVpp
Load
Regulation
No Load to
Full
 5
25
50
200
mV
Line
Regulation
Vin: 15 to 50V 2
20
20
200
mV

ParameterConditions SVLHF5015DUnits
MinTypMax
Input
Voltage
Continuous
Transient(1)
305060
80
Vdc
Output
Voltage
Full Load14.775
14.40
15
15

15.225
15.6
Vdc
Output
Power
Vin: 30-60V0 20W
EfficiencyVin: 50V,
Full Load
7984 %
Input
Ripple
Full Load, 20Hz to
10MHz
 45100mApp
Output
Ripple
Full Load,
20Hz to 10MHz
 50100mVpp
Load
Regulation
No Load to
Full
 5
25
50
200
mV
Line
Regulation
Vin: 15 to 50V 2
20
20
200
mV

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.