SVGA0510S Series
ULTRA-HIGH RELIABILITY
100 krad (Si)
RADIATION HARDENED
HYBRID DC-DC CONVERTERS
DESCRIPTION
The SVGA series of high-reliability DC-DC converters is
operable over the full military temperature range (-55°C to
+125°C) with no power derating. Operating at a nominal
fixed frequency of 250 kHz, these regulated non-isolated
converters are optimized for low voltage point-of-load
applications with high-efficiency synchronous rectification
and fast transient response.
The SVGA series is specifically designed for the harsh
radiation environment of space applications. Performance
is guaranteed by design through extensive Worst Case
Analysis, the use of hardened components, and Radiation
Lot Acceptance Testing (RLAT) of semiconductor
components. The SVGA 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. Characterization is
performed at both the component level and at the SVGA
series hybrid converter level.
These converters are designed and manufactured in a
facility qualified to ISO9001 and certified to MIL-PRF-
38534 Class H and Class K and MIL-STD-883.
This product may incorporate one or
more of the following U.S. patents:
5,784,266
5,999,433
6,118,673
5,790,389
6,005,780
5,963,438
6,084,792
FEATURES
Guaranteed TID Performance to 100 krad(Si)
including ELDRS, per VPT’s RHA plan specified per
MIL-PRF-38534, Appendix G, Level R.
SEE Characterized to 85 MeV-cm
2
/mg with minor
transients only; no dropouts, shutdowns, latch up or
burn out.
High Reliability
Operates from 5V input
Adjustable Output Voltage from 0.8V to 3.4V
Up to 10 Amps or 33 Watts Output Power
High Efficiency, Up to 94%
High Power Density, >100W/in
3
Output Inhibit Control
Low Output Noise
No Use of Opto-isolators
Short Circuit Protection
Precision Projection Welded Hermetic Package
MIL-PRF-38534 Element Evaluated Components
Compliant to MIL-HDBK-1547 Deratings
Worst Case Analysis, Stress, Radiation and
Reliability reports available
1
Figure 1
– SVGA0510S DC-DC Converter
(Exact
marking may differ from that shown)
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.
1
SVGA0510S-2.0
http://www.vpt-inc.com
Sales Information:
Phone: (425) 353-3010
Fax: (425) 353-4030
E-mail: vptsales@vpt-inc.com
1
SVGA0510S Series
SPECIFICATIONS
(T
CASE
= -55°C to +125°C, V
IN
= +5V ± 1%, Full Load, Unless Otherwise Specified)
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous)
Input Voltage Transient (1 second)
Output Power
1
Power Dissipation (Full Load, T
CASE
= +125°C)
ESD Rating per MIL-PRF-38534
7 V
DC
7.5 V
DC
33 Watts
4.5 Watts
3B
Junction Temperature Rise to Case
Storage Temperature
Lead Solder Temperature (10 seconds)
Weight (Maximum)
+11°C
-65°C to +150°C
270°C
16 Grams
Parameter
STATIC
INPUT
4
Voltage
Current
Inhibit Pin Input
UVLO Turn On
UVLO Turn Off
OUTPUT
Voltage
Power
1,3
3
4
4
Conditions
SVGA0510S
Min
3.5
4.1
-
-
0
-
-
-
Typ
-
-
30
100
-
4.7
3.0
2.7
Vout
Vout
-
-
60
10
93
1.5
Max
7.0
7.0
35
150
1.5
Vin
-
-
+1.0
+1.5
33
10
100
25
3
5000
350
-
Units
Vout = 0.8V to 2.5V
Vout = 2.6V to 3.3V
Inhibited
No Load
V
mA
mA
V
V
V
V
%V
%V
W
A
mV
p-p
mV
%
W
F
kHz
MHrs
Inhibit Pin Open Circuit Voltage
4,6
4,6
V
OUT
V
OUT
I
OUT
V
OUT
V
OUT
T
CASE
= 25°C
T
CASE
= -55°C to +125°C
-1.0
-1.5
0
0
Current
Ripple Voltage
Load Regulation
EFFICIENCY
1
Full Load, 20Hz to 10MHz
No Load to Full Load
Vout = 3.3V
Vout = 3.3V
-
-
88
FAULT POWER DISSIPATION
CAPACITIVE LOAD
4
SWITCHING FREQUENCY
MTBF (MIL-HDBK-217F)
SF @ T
C
= 55°C
5
200
-
250
6.90
DYNAMIC
Load Step Output Transient
Load Step Recovery
Turn On Delay
Turn On Overshoot
2,5
V
OUT
V
OUT
Half Load to Full Load
Vout = 3.3V
V
IN
= 0V to 5V
-
-
-
-
75
25
5
2
120
60
8
10
mV
Sec
mSec
mV
PK
POST-RAD END-OF-LIFE LIMITS
7
OUTPUT
Voltage
T
CASE
= -55°C to +125°C
-3.0
Vout
+3.0
%V
Notes:
1.
2.
3.
4.
5.
6.
7.
Dependent on output voltage.
Time for output voltage to settle within 1% or 20mV of its nominal value, whichever is greater.
Derate linearly to 0 at 135°C.
Verified by qualification testing.
With 100μF capacitor from Vin to Ground
Vout not necessarily in regulation
All other specifications remain the same
SVGA0510S-2.0
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