DVPL0503S Series
HIGH RELIABILITY HYBRID
DC-DC CONVERTERS
DESCRIPTION
The DVPL series of high reliability DC-DC converters
is operable over the full military (-55 °C to +125 °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 and fast
transient response.
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
High Reliability
Operates From 5V Input
Adjustable Output Voltage, 0.8V to 3.4V
Up to 3 Amps or 10W Output
High Efficiency, Up to 95%
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
Figure 1
– DVPL0503S DC-DC Converter
(Exact
marking may differ from that shown)
Sales Information:
Phone: (425) 353-3010
Fax: (425) 353-4030
E-mail: vptsales@vpt-inc.com
DVPL0503S-5.0
http://www.vpt-inc.com
1
DVPL0503S 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, 20 milliseconds)
Output Power
1
Power Dissipation (Full Load, T
CASE
= +125°C)
ESD Rating per MIL-PRF-38534
5.5 V
DC
5.8 V
DC
10 Watts
1.7 Watt
1C
Junction Temperature Rise to Case
Storage Temperature
Lead Solder Temperature (10 seconds)
Weight (Maximum)
+8°C
-65°C to +150°C
270°C
8 Grams
Parameter
STATIC
INPUT
4
Voltage
Current
Inhibit Pin Input
UVLO Turn On
UVLO Turn Off
OUTPUT
Voltage
Power
3,1
3
4
4
Conditions
DVPL0503S
Min
Typ
Max
Units
V
IN
Vout = 0.8V to 3.3V
Inhibited
No Load
4.0
-
0
-
20
-
2.2
2.0
5.5
3
45
0.2
Vin
V
mA
mA
V
V
V
V
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°C to +125°C
V
OUT
= 3.3V
Full Load, 20Hz to 10MHz
No Load to Full Load
Vin = 5V, Vout = 3.3V
Short Circuit
-1.5
-2.5
0
0
Vout
Vout
+1.5
+2.5
10
3
%Vout
%Vout
W
A
mV
p-p
mV
%
W
F
kHz
MΩ
kHrs
Current
Ripple Voltage
Load Regulation
EFFICIENCY
FAULT POWER DISSIPATION
CAPACITIVE LOAD
CASE ISOLATION
MTBF (MIL-HDBK-217F)
4
35
20
86
92
90
40
4
5000
SWITCHING FREQUENCY
500 V
DC
AIF @ T
C
= 55°C
5
240
100
300
-
823
350
-
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
200
200
5
350
400
10
70
mV
Sec
mSec
mV
PK
Notes:
1.
3.
5.
6.
Dependant on output voltage. 2. Time for output voltage to settle within 1% of its nominal value.
Derate linearly to 0 at 135°C.
4. Verified by qualification testing.
With 100μF capacitor from Vin to Ground
Vout not necessarily in regulation.
DVPL0503S-5.0
2
DVPL0503S Series
TYPICAL DISTRIBUTED APPLICATION
1
DVHE2805S DC/DC CONVERTER
5
28V IN
+V OUT
6
+S
28 Vdc
LOAD1
5V
C
5
TRIM
INH
R
2
COM
COM
2
4
DVPL0503S DC/DC CONVERTER
1
+V IN
+V OUT
+
-
2
INH
TRIM
-S
9
3
4
6
LOAD2
3.3V
10
IN COM
OUT COM
4
DVPL0503S DC/DC CONVERTER
1
+V IN
+V OUT
6
C
5
TRIM
INH
R
2
COM
COM
2
LOAD3
2.5V
DVPL0503S DC/DC CONVERTER
4
1
+V IN
+V OUT
C
5
TRIM
INH
6
LOAD4
0.8V
R
2
COM
COM
2
Figure 4
DVPL0503S-5.0
4
DVPL0503S Series
OUTPUT VOLTAGE TRIM
+V OUT
PIN 1
10k
TRIM
The output voltage is set with an external
resistor connected from the TRIM pin to
GND pin. This resistor must have a
tolerance of 1% or less to achieve an
accurate output voltage.
The default output voltage with the TRIM
pin left floating is 0.8V.
R-TRIM
-
+
PIN 6
0.7 V
+
-
59k
COM
PIN 2
DVPL0503S
+V
OUT
(V)
0.8
0.9
1.0
1.2
1.5
1.8
1.9
2.0
2.5
2.8
3.0
3.3
3.4
R
TRIM
(Ω)
-
70.2k
35.0k
17.5k
10.0k
7.0k
6.37k
5.84k
4.12k
3.50k
3.18k
2.80k
2.69k
488.6 * 10
6
55860
Rtrim
Vo
½
69.8 * 10
3
488.6 * 10
6
Rtrim
½
Vo
* 69.8 * 10
3
55860
Figure 5
– Output Voltage Trim
DVPL0503S-5.0
5
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