Crane Aerospace & Electronics Power Solutions
sMFL single and dual dc/dc converters
28 VoLt input – 65 Watt
Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
90
85
16V
28V
40V
90
85
90
16V
28V
85
16V
28V
Efficiency (%)
75
70
65
60
10
Efficiency (%)
75
70
65
40V
Efficiency (%)
80
80
80
75
70
65
40V
SMFL2805S & SMFL2805D Efficiency
Output (Watts)
20
30
40
50
60
10
F
igure
4
SMFL2812S & SMFL2812D Efficiency
Output Power (Watts)
20
30
40
50
60
60
10
F
igure
5
SMFL2815S & SMFL2815D Efficiency
Output Power (Watts)
20
30
40
50
60 65
F
igure
6
90
85
16 VIN
28 VIN
40 VIN
0.
20.
Efficiency (%)
80
75
70
65
Attenuation (dB)
100mV/div.
20V/div.
40.
60.
80.
Vout
Vin
60
0
SMFL2828S Efficiency
Output Power (Watts)
10
20 30 40 50 60 70
100.
0.1
SMFL Series Audio Rejection
Frequency (kHz)
1
10
100
F
igure
7
F
igure
8
SMFL2805S Step Line Response
50
µs/div
16 to 40 V
F
igure
9
20V/div.
20V/div.
100mV/div.
1ms/div
No Load
100% to 50%
Vin
Vin
+Vout
100mV/div.
1V/div.
50% to 100%
Vout
–Vout
SMFL2805S Step Load Response
1ms/div
F
igure
10
SMFL2805S Turn On Response
F
igure
11
SMFL2815D Step Line Response
50
µs/div
16 to 40 V
F
igure
12
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