
DVFL2800S Series
SPECIFICATIONS 
(T
CASE
 = -55°C to +125°C, V
IN
 = +28V ± 5%, Full Load, Unless Otherwise Specified) 
ABSOLUTE MAXIMUM RATINGS 
12010DSB 
4
Input Voltage (Continuous) 
Input Voltage (Transient, 1 second) 
Output Power
1
Power Dissipation (Full Load, T
CASE
 = +125°C) 
40 V
DC
50 Volts 
120 Watts 
41 Watts 
Junction Temperature Rise to Case 
Storage Temperature 
Lead Solder Temperature (10 seconds) 
Weight 
+15°C 
-65°C to +150°C 
270°C 
100 grams 
DVFL2812S 
DVFL2815S 
Parameter 
Conditions 
Min 
Typ 
Max 
Min 
Typ 
Max 
Units 
STATIC 
Continuous 
16 
28 
40 
16 
28 
40 
V 
INPUT 
Voltage
4 
Transient, 1 sec 
- 
- 
50 
- 
- 
50 
V 
Inhibited 1 
- 
- 
3 
- 
- 
3 
mA 
Inhibited 2 
- 
- 
70 
- 
- 
70 
mA 
Current
No Load 
- 
- 
120 
- 
- 
120 
mA 
Ripple Current 
INH1 Pin Input
4 
INH2 Pin Input
4 
INH1 Pin Open Circuit Voltage
4 
INH2 Pin Open Circuit Voltage
4 
Full Load, 20Hz to 10MHz 
- 
- 
80 
- 
- 
80 
mA
p-p 
V 
0 
- 
1.5 
0 
- 
1.5 
0 
- 
1.0 
0 
- 
1.0 
V 
10.5 
- 
13.5 
10.5 
- 
13.5 
V 
5.0 
- 
8.0 
5.0 
- 
8.0 
V 
UVLO Turn On 
UVLO Turn Off
4 
14.0 
- 
16.0 
14.0 
- 
16.0 
V 
14.0 
- 
15.5 
14.0 
- 
15.5 
V 
V
OUT 
V
OUT 
T
CASE
 = 25°C 
T
CASE
 = -55°C to +125°C 
11.88 
12.00 
12.12 
14.85 
15.00 
15.15 
V 
OUTPUT 
Voltage 
11.82 
12.00 
12.18 
14.775 
15.00 
15.225 
V 
Power
- 
- 
110 
- 
- 
120 
W 
Current 
V
OUT 
V
OUT 
V
OUT 
V
OUT 
V
OUT 
- 
- 
9.2 
- 
- 
8.0 
A 
Ripple Voltage 
Full Load, 20Hz to 10MHz 
- 
- 
80 
- 
- 
80 
mV
p-p 
mV 
Line Regulation 
V
IN
 = 16V to 40V 
No Load to Full Load 
- 
- 
20 
- 
- 
20 
Load Regulation 
Voltage Trim
4 
Share Pin Voltage
4 
- 
- 
120 
- 
- 
150 
mV 
Full Load 
-20 
- 
10 
-20 
- 
10 
% 
2.0 
- 
3.0 
2.0 
- 
3.0 
V 
EFFICIENCY 
Overload
4 
79 
- 
- 
80 
- 
- 
% 
- 
- 
80 
- 
- 
80 
W 
LOAD FAULT POWER DISSIPATION 
Short Circuit 
- 
- 
80 
- 
- 
80 
W 
μ
F 
kHz 
CAPACITIVE LOAD
4 
- 
- 
500 
- 
- 
500 
SWITCHING FREQUENCY 
V
H
 – V
L
 = 5V 
Duty Cycle = 20% - 80% 
500 V
DC 
Case to Ambient (
θ
CA) 
AIF @ T
C
 = 55°C 
450 
500 
600 
450 
500 
600 
SYNC FREQUENCY RANGE 
500 
- 
600 
500 
- 
600 
kHz 
ISOLATION 
100 
- 
- 
100 
- 
- 
M
THERMAL RESISTANCE 
- 
12 
- 
- 
12 
- 
°C/W 
MTBF (MIL-HDBK-217F) 
- 
400 
- 
- 
400 
- 
kHrs 
Notes: 
1.  Dependant on output voltage. 
3.  Derate linearly to 0 at 135°C. 
2.  Time for output voltage to settle within 1% of its nominal value. 
4.  Verified by qualification testing.