DVPL0520S Series
HIGH RELIABILITY HYBRID
DC-DC CONVERTERS
DESCRIPTION
The DVPL series of high reliability DC-DC converters
is operable over the full military (-55 ° to +125 °
C
C)
temperature range with no power derating.
Operating at a nominal fixed frequency of 300 kHz,
these regulated, non-isolated converters are
optimized for low voltage point of load applications
with high efficiency synchronous rectification, fast
transient response, and power sequencing
capability.
These converters are designed and manufactured in
a facility qualified to ISO9001 and certified to MIL-
PRF-38534 and MIL-STD-883.
This product may incorporate one or more of the
following U.S. patents:
5,784,266
5,790,389
5,963,438
5,999,433
6,005,780
6,084,792
6,118,673
FEATURES
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High Reliability
Operates From 5V Input
Adjustable Output Voltage, 0.8V to 3.4V
Up to 20 Amps or 66W Output
High Efficiency, Up to 95%
High Power Density: >211 W/in
3
Output Voltage Sequencing
Output Voltage Tracking
Operation Into a Pre-Biased Output
Output Inhibit Control
Low Output Noise
NO Use of Optoisolators
Over Current and Short Circuit Protection
Precision Projection Welded Hermetic Package
Meets MIL-STD-461 Revisions C, D, E and F
EMC Requirements When Used With VPT DC-
DC Converters and EMI filters
Additional Environmental Screening Available
MIL-PRF-38534 Element Evaluated
Components
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Figure 1
– DVPL0520S DC-DC Converter
(Exact
marking may differ from that shown)
DVPL0520-4.0
http://www.vptpower.com
Sales Information:
Phone: (425) 353-3010
Fax: (425) 353-4030
E-mail: vptsales@vptpower.com
1
DVPL0520S Series
SPECIFICATIONS
(T
CASE
= -55°C to +125°C, V
IN
= +5V ± 5%, Full Load, Unless Otherwise Specified)
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Continuous)
Input Voltage (Transient, 1 second)
1
Output Power
Power Dissipation (Full Load, T
CASE
= +125°
C)
ESD Rating per MIL-PRF-38534
5.5 V
DC
5.8 V
DC
66 Watts
9 Watt
3A
Junction Temperature Rise to Case
Storage Temperature
Lead Solder Temperature (10 seconds)
Weight (Maximum)
+13°
C
-65° to +150°
C
C
270°
C
16 Grams
Parameter
STATIC
INPUT
Voltage
4
Current
Inhibit Pin Input
UVLO Turn On
UVLO Turn Off
OUTPUT
Voltage
Power
3,1
3
4
4
Conditions
DVPL0520S
Min
4.5
-
-
-
0
-
-
-
Typ
-
-
-
-
-
-
2.2
2.0
Vout
Vout
-
-
90
35
92
-
-
300
-
525
Max
5.5
5.8
3
160
1.5
Vin
-
-
+1.5
+2.5
66
20
150
70
-
5
5000
350
-
-
Units
V
IN
Continuous
Transient
Inhibited
No Load
V
V
mA
mA
V
V
V
V
%Vout
%Vout
W
A
mV
p-p
mV
%
W
µF
kHz
MΩ
kHrs
Inhibit Pin Open Circuit Voltage
4,6
4
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
4
T
CASE
= 25°
C
T
CASE
= -55° to +125°
C
C
V
OUT
= 3.3V
Full Load, 20Hz to 10MHz
No Load to Full Load
Vout = 3.3V
Short Circuit
-1.5
-2.5
0
0
-
-
88
-
-
240
Current
Ripple Voltage
Load Regulation
EFFICIENCY
FAULT POWER DISSIPATION
CAPACITIVE LOAD
CASE ISOLATION
MTBF (MIL-HDBK-217F)
4
SWITCHING FREQUENCY
500 V
DC
AIF @ T
C
= 55°
C
100
-
DYNAMIC
Load Step Output Transient
5
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
-
-
-
-
150
100
-
-
300
200
8
40
mV
µSec
mSec
mV
PK
VOLTAGE TRACKING
Tracking Accuracy
4
Slew Rate
4
Tracking Delay
4
Power-up
Power-down
At track pin
From Vin to tracking
voltage applied
-
-
0.1
10
100
200
-
-
300
400
2
-
mV
mV
V/msec
Ms
1. Dependent on output voltage
2. Time for output voltage to settle within 1% or
20mV of its nominal value, whichever is greater
3. Derate linearly to 0 at 135°
C
4. Verified by qualification testing
5. With 300μF capacitor from Vin to Ground
6. Vout not necessarily in regulation
DVPL0520-4.0
2
DVPL0520S Series
TYPICAL DISTRIBUTED APPLICATION
1
DVFL2805S DC/DC CONVERTER
7
28V IN
+V OUT
10
+S
28 Vdc
LOAD1
5V
C
3
9
-S
R
2
IN COM
OUT COM
8
2
COM
COM
7
INH
TRIM
6
1
DVPL0520S DC/DC CONVERTER
8
+V OUT
+V IN
5
TRACK
+SENSE
LOAD2
3.3V
4
+
-
4
INH
TRIM
3
1
DVPL0520S DC/DC CONVERTER
8
+V OUT
+V IN
5
TRACK
+SENSE
LOAD3
2.5V
6
INH
TRIM
R
7
COM
COM
4
C
3
2
Figure 4
TRACKING APPLICATION
1
DVPL0520S DC/DC CONVERTER
8
+V OUT
+V IN
5
TRACK
3
INH
2
COM
+VIN
COM
TRIM
R
7
+SENSE
LOAD1
3.3V
6
4
+
-
1
DVPL0520S DC/DC CONVERTER
8
+V OUT
+V IN
5
TRACK
+SENSE
LOAD2
2.5V
6
INH
TRIM
R
7
COM
COM
4
3
2
Figure 5
DVPL0520-4.0
4
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