
Notes
1. Guaranteed by design, not tested.
2. Unit will shut down above approximately 45 V but will be undamaged and will
restart when voltage drops into normal range.
3. Recovery time is measured from application of the transient to point at
which Vout is within 1% of final value.
4. Transition time > 10 μS.
5. Tested on release from inhibit.
6. Shall not compromise DC performance.
7. SMFL283R3S current and power are at 25°C only.
Electrical Characteristics: -55°C to +125°C Tc, 28 VDC Vin, 100% load, RHA level O, unless otherwise specified.
SINgLE OUTPUT MODELS
SMFL283R3S
SMFL2805S
SMFL2812S
SMFL2815S
unitS
Parameter
cOnDitiOnS
MIN TYP MAx
MIN TYP MAx
MIN TYP MAx
MIN TYP MAx
OutPut VOltage
tc = 25°c
3.26 3.30 3.34
4.95 5.00 5.05
11.88 12.00 12.12
14.85 15.00 15.15
VDc
OutPut current
V
in
= 16
tO
40 VDc
0
—
12.12
0
—
10
0
—
5
0
—
4.33
a
OutPut POwer
V
in
= 16
tO
40 VDc
0
—
40
0
—
50
0
—
60
0
—
65
w
OutPut riPPle
10
k
h
z
- 2 mh
z
tc = 25°c
—
10
35
—
10
50
—
15
35
—
30
50
—
30
75
—
45
100
—
30
85
—
45
110
mV p-p
tc = -55°c
tO
+125°c
line regulatiOn
V
in
= 16
tO
40 VDc
nO lOaD tO Full
—
0
20
—
0
20
—
0
20
—
0
20
mV
lOaD regulatiOn
—
—
40
—
—
20
—
—
20
—
—
20
mV
inPut VOltage
cOntinuOuS
16
28
40
—
—
50
16
28
40
—
—
50
16
28
40
—
—
50
16
28
40
—
—
50
VDc
V
TRANSIENT
1
, 2
50 ms
inPut current
nO lOaD
—
70
100
—
9
14
—
35
70
—
70
120
—
9
14
—
35
70
—
50
100
—
9
14
—
35
70
—
50
100
—
9
14
—
35
70
mA
inhibiteD – inh1
inhibiteD – inh2
inPut riPPle
10
k
h
z
- 10 mh
z
—
30
50
—
30
50
—
30
50
—
30
50
mA p-p
eFFiciency
tc = 25°c
70
—
—
75
78
—
81
84
—
82
85
—
%
lOaD Fault
ShOrt circuit
POwer DiSSiPatiOn
tc = 25°c
—
12.5
16
—
1.5
4
—
12.5
16
—
1.5
4
—
10
16
—
1.5
4
—
10
16
—
1.5
4
w
ms
recOVery
1
SteP lOaD
reSPOnSe
50% - 100% - 50%
tranSient
—
200
300
—
1.5
3.0
—
250
350
—
1.5
3.0
—
450
600
—
1.5
3.0
—
500
600
—
1.5
3.0
mV pk
mS
recOVery
1
, 3
SteP line
reSPOnSe
1
, 3
16 - 40 -16 VDc
tranSient
4
—
250
300
—
200
600
—
250
300
—
200
300
—
250
400
—
200
300
—
250
400
—
200
300
mV pk
μs
recOVery
Start-uP
5
Delay
—
3.5
6
—
3.5
6
—
3.5
6
—
3.5
6
ms
Crane Aerospace & Electronics Power Solutions
www.craneae.com
Page 6 of 13
Rev H - 20061102
sMFL single and dual dc/dc converters
28 VoLt input – 65 Watt