SVRGA0508S SERIES
SPACE QUALIFIED POINT OF LOAD CONVERTERS
Models Available
Input: 5 V nominal
20 W, 8 A output
Qualified to MIL-PRF-38534 Class H and Class K
Designed for TOR Compliance
SVRGA Series DC-DC Converter
1.0 DESCRIPTION
The SVRGA Series of space qualified point of load 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 SVRGA 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 SVRGA Series hybrid converter
level.
The SVRGA Series of point of load 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.
1.2 SPACE LEVEL CHARACTERIZATIONS
Guaranteed TID performance to 100 krad(Si) including ELDRS
SEE performance to 85 MeV-cm /mg. Transients are fully
characterized for cross section and magnitude
Worst-case analysis, stress, radiation, reliability reports available
2
1.3 MANUFACTURING AND COMPLIANCE
Qualified to MIL-PRF-38534 Class H and Class K,
DLA SMD #
5962-13217
Available compliant to MIL-HDBK-1547 and Aerospace TOR
component level element evaluation
MIL-PRF-38534 element evaluated components
Manufactured in a MIL-PRF-38534 Class H and Class K facility
MIL-STD-883
ISO-9001
1.4 PACKAGING
Low-profile: 1.075” x 1.075” x 0.270”
Max weight: 16 g
Precision projection-welded hermetic metal case
1.1 FEATURES
Operates from 5 V input
Adjustable Output from 0.8 V to 3.4 V
Up to 8 Amps or 20 Watt Output
High Efficiency, up to 92%
High Power Density, >64 W/in
Output Inhibit Control
Low Output Noise
No Use of Optoisolators
Short Circuit Protection
3
1.5 SIMILAR PRODUCTS AND ACCESSORIES
SVGA0510S
33 W space qualified point of load DC-DC converter
Custom versions available
Space qualified isolated DC-DC converters,
15 - 100 W
EMI filters
Products and reports described in this datasheet are subject to all export license restrictions and regulations which may include but are not limited to ITAR
(International Traffic in Arms Regulations) and the Export Administration and Foreign Assets Control Regulations. Further restrictions may apply. Contact VPT
sales for details.
Sales Information
Phone:(425) 353-3010
E-mail:
vptsales@vptpower.com
Fax: (425) 353-4030
Web:
www.vptpower.com
SVRGA0508S - 2.0
Page 1
SVRGA0508S Series
3.2 PERFORMANCE SPECIFICATIONS
1
Tcase = -55 °C to +125 °C, Vin = +5 V ± 1%, Full Load, Unless Otherwise Specified
SVRGA0508S
Parameter
INPUT
Voltage4
Current
Undervoltage Lockout4,5
OUTPUT STATIC
Voltage
Power2
Current
Ripple Voltage
Load Regulation
Load Fault Power Dissipation
OUTPUT DYNAMIC
Load Step, Half to Full Load, Vout = 3.3 V
Turn-On, Vin = 0 to 5 V
FUNCTION
INH Pin Input4
INH Pin Open Circuit Voltage4
GENERAL
Efficiency
Capacitive Load4
Switching Frequency
Isolation
Weight
MTBF (MIL-HDBK-217F)
POST-RAD END-OF-LIFE LIMITS6
OUTPUT Voltage
Output Inhibited
Output Enabled
Vout = 2.5 V, Iout = 8 A
Vout = 3.3 V, Iout = 6 A
Vout ≤ 2.5V
Vout > 2.5V
Any pin to case, 500 V DC
Standard package option
SF @ Tcase = 55 °C
Tcase = -55 °C to +125 °C
0
-
84
88
-
-
200
100
-
-
-3.0
-
4.7
87
91
-
-
250
-
-
6.852
-
1.5
Vin
-
-
2500
1200
350
-
16
-
+3.0
V
V
%
%
µF
µF
kHz
MΩ
g
MHr
%Vout
Conditions
Vout = 0.8 V to 2.5 V
Vout = 2.6 V to 3.3 V
INH < 1.5 V
No Load
Turn-On
Turn-Off
Tcase = 25 °C
Tcase = -55 °C to +125 °C
Vout = 0.8 V to 2.5 V
Vout = 2.6 V to 3.3 V
20 Hz to 10 MHz
No Load to Full Load
Vout = 3.3 V
Output Transient
Recovery3
Delay
Overshoot
Min
3.6
4.4
-
-
-
-
-1.0
-1.5
0
0
0
-
-
-
-
-
-
-
Typ
-
-
28
100
3.0
2.7
-
-
-
-
-
35
4
-
25
20
7
1
Max
7.0
7.0
35
200
-
-
+1.0
+1.5
20
8
6
100
30
3
150
100
12
20
Units
V
V
mA
mA
V
V
%Vout
%Vout
W
A
A
mVpp
mV
W
mV
µs
ms
mVpk
1. Performance specifications are met with 220 µF from
VIN to COM and 220 µF from VOUT to COM
2. Dependent on output voltage
3. Time for output voltage to settle within 1% of steady-state value
4. Verified by qualification testing
5. Output voltage not necessarily in regulation
6. End-of-Life performance includes aging and radiation
degradation and is within standard limits except where noted
Sales Information
Phone:(425) 353-3010
E-mail:
vptsales@vptpower.com
Fax: (425) 353-4030
Web:
www.vptpower.com
SVRGA0508S - 2.0
Page 3
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