Crane Aerospace & Electronics Power Solutions
SMTR Single, Dꢀꢁl ꢁnd Triple DC/DC Converters
28 VOꢂT INPuT – 30 WaTT – PENDINꢃ REVISION F REꢂEaSE
Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
85
80
75
70
65
60
85
80
75
70
65
60
87
82
77
72
67
62
16V
16V
16V
28V
28V
28V
40V
40V
40V
5
10
15
20
25
5
10
15
20
25
30
5
10
15
20
25
30
OUTPUT POWER (Watts)
OUTPUT POWER (Watts)
OUTPUT POWER (Watts)
SMTR2805S EFFICIENCY
SMTR2812S EFFICIENCY
SMTR2815S EFFICIENCY
Fi g u r e 6
Fi g u r e 7
Fi g u r e 8
85
80
75
70
65
60
90
85
80
75
70
65
16V
0
10
20
30
40
50
60
70
80
90
100
28V
16V
28V
40V
40V
5
10
15
20
25
30
5
10
15
20
25
30
0.1
1
10
100
FREQUENCY (kHz)
OUTPUT POWER (Watts)
OUTPUT POWER (Watts)
AUDIO REJECTION, SMTR SERIES
SMTR2812D EFFICIENCY
SMTR2815D EFFICIENCY
SINGLE AND DUAL OUTPUT MODELS
Fi g u r e 9
Fi g u r e 10
Fi g u r e 11
25W to 12.5W
V
IN
V
IN
V
OUT
V
OUT
12.5W to 25W
500 µs / div
50μs/div
50% 100%
50μs/div
16 TO 40V
SMTR2805S TURN-ON INTO NO LOAD
SMTR2805S STEP LOAD RESPONSE
SMTR2805S STEP LINE RESPONSE
Fi g u r e 12
Fi g u r e 13
Fi g u r e 14
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Rev F - 20090324 - Pending Revision F Release
CRANE [ Crane Aerospace & Electronics. ]
