SVRCH2800S DC-DC Converter

The SVRCH Series of space qualified DC-DC converters is specifically designed for the harsh radiation environment of space applications and is designed in accordance with Aerospace TOR requirements.

Performance is guaranteed through the use of hardened semiconductor components, radiation lot acceptance testing (RLAT) of non-hardened components, and analysis. The SVRCH 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 R. Characterization is performed at both the component level and at the SVRCH Series hybrid converter level.

The SVRCH Series of DC-DC converters is radiation hardened and suited for use in low Earth orbit (LEO), medium Earth orbit (MEO), geostationary orbit (GEO), deep space, and launch vehicle programs.

 

 

Features:

  • Single outputs of 3.3, 5, 12, and 15 V
  • Up to 1.5W output power
  • Wide input voltage range of 16 to 40 V plus 50 V transient
  • Continuous operation over full military temperature range of -55°C to +125°C with no power derating
  • Very low output noise
  • No use of optoisolators
  • Undervoltage lockout
  • Current limit protection / short circuit protection

Space-Level Characterizations:

  • Guaranteed TID performance to 100 krad(Si) including ELDRS
  • SEE performance to 85 MeV/mg/cm2. Transients are fully characterized for cross section and magnitude.
  • Worst-case analysis, stress, radiation, and reliability reports available

Compliances and Certifications:

  • Qualified to MIL-PRF-38534 Class H and Class K, DLA SMD # TBD
  • Available compliant to MIL-HDBK-1547 and Aerospace TOR component level element evaluation
  • MIL-PRF-38534 element evaluated components
  • MIL-STD-461 C/D/E/F/G 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:

ParameterConditionsSVRCH283R3SUnits
MinTypMax
Input
Voltage
Continuous
Transient(1)
162840
50
Vdc
Output
Voltage
Full Load3.253.33.35Vdc
Output
Power
0  1.2W
EfficiencyVin: 28V,
Full Load
6370 %
Input
Ripple
Full Load,
20Hz to 10 MHz
 1030mApp
Output
Ripple
Full Load,
20Hz to 10MHz
 3060mVpp
Load
Regulation
10% Load to Full Load 300450mV
Line
Regulation
Vin: 16-40V 3080mV

ParameterConditionsSVRCH2805SUnits
MinTypMax
Input
Voltage
Continuous
Transient(1)
162840
50
Vdc
Output
Voltage
Full Load4.92555.075Vdc
Output
Power
0  1.5W
EfficiencyVin: 28V,
Full Load
67.574 %
Input
Ripple
Full Load,
20Hz to 10 MHz
 1030mApp
Output
Ripple
Full Load,
20Hz to 10MHz
 2550mVpp
Load
Regulation
10% Load to Full Load 300450mV
Line
Regulation
Vin: 16-40V 2070mV

ParameterConditionsSVRCH2812SUnits
MinTypMax
Input
Voltage
Continuous
Transient(1)
162840
50
Vdc
Output
Voltage
Full Load11.821212.18Vdc
Output
Power
0  1.5W
EfficiencyVin: 28V,
Full Load
71.577.5 %
Input
Ripple
Full Load,
20Hz to 10 MHz
 1030mApp
Output
Ripple
Full Load,
20Hz to 10MHz
 2060mVpp
Load
Regulation
10% Load to Full Load 400700mV
Line
Regulation
Vin: 16-40V 50100mV

ParameterConditionsSVRCH2815SUnits
MinTypMax
Input
Voltage
Continuous
Transient(1)
162840
50
Vdc
Output
Voltage
Full Load14.7751515.225Vdc
Output
Power
0  1.5W
EfficiencyVin: 28V,
Full Load
7178 %
Input
Ripple
Full Load,
20Hz to 10 MHz
 1030mApp
Output
Ripple
Full Load,
20Hz to 10MHz
 2060mVpp
Load
Regulation
10% Load to Full Load 500750mV
Line
Regulation
Vin: 16-40V 50100mV

(1) Transient time up to 1 second.
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.