
DUAL OUTPUT MODELS
PARAMETER
OUTPUT VOLTAGE
SMTR2805D
MIN
4.95
SMTR2812D
MIN
11.88
12.00
SMTR2815D
MIN
TYP
15.00
CONDITIONS
TYP
5.00
MAX
5.05
TYP
MAX
12.12 14.85
MAX
15.15
UNITS
+V
OUT
–V
OUT
VDC
4.92
5.00
5.08
11.82
12.00
12.18
14.77
15.00
15.23
OUTPUT CURRENT
1, 2
OUTPUT POWER
1, 2
OUTPUT RIPPLE
VOLTAGE +/– V
OUT
LINE REGULATION
3
V
IN
= 16 TO 40 VDC
LOAD REGULATION
NO LOAD TO FULL
CROSS REGULATION
EFFECT ON –V
OUT
INPUT VOLTAGE
1
NO LOAD TO FULL
INPUT CURRENT
V
IN
= 16 TO 40 VDC
V
IN
= 16 TO 40 VDC
10 kHz - 2 MHz
Tc = –55°C TO +125°C
0
2.5
4.5
0
1.25
2.25
0
1.0
1.8
A
0
—
—
—
20
40
25
50
80
0
—
—
—
30
40
30
80
120
0
—
—
—
25
40
30
80
120
W
mV p-p
Tc = –55°C
TO +125°C
Tc = –55°C
TO +125°C
+V
OUT
–V
OUT
+V
OUT
–V
OUT
—
—
—
—
—
—
10
50
5
25
7
4
50
100
50
100
12
6
—
—
—
—
—
—
10
50
15
30
4
4
50
150
50
180
8.3
6
—
—
—
—
—
—
10
50
15
30
3
4
50
180
50
180
8
6
mV
mV
SEE NOTE 4
SEE NOTE 5
%
CONTINUOUS
TRANSIENT 50 ms
NO LOAD
FULL LOAD
INHIBITED
16
0
—
—
—
28
—
35
1.10
3
40
50
75
—
8
16
0
—
—
—
28
—
50
1.34
3
40
50
75
—
8
16
0
—
—
—
28
—
50
1.29
3
40
50
75
—
8
VDC
V
mA
A
mA
INPUT RIPPLE
CURRENT
1, 6
EFFICIENCY
LOAD FAULT
7
10 kHz - 10 MHz
—
74
15
76
50
—
—
77
20
80
50
—
—
78
20
81
50
—
mA p-p
%
POWER DISSIPATION
SHORT CIRCUIT
1
RECOVERY
50 – 100 – 50% BALANCED
TRANSIENT
RECOVERY
8
16 – 40 – 16 V
IN
TRANSIENT
9
RECOVERY
8
DELAY
OVERSHOOT
FULL LOAD
NO LOAD
—
—
—
1.4
10
5.0
—
—
—
1.4
10
5.0
—
—
—
1.4
10
5.0
W
ms
STEP LOAD
RESPONSE ± V
OUT
—
—
±200
100
±300
200
—
—
±150
100
±300
200
—
—
±200
100
±400
200
mV pk
μs
STEP LINE
RESPONSE ± V
OUT
—
±200
±400
—
±200
±400
—
±400
±500
mV pk
—
—
—
1.4
300
5
—
—
—
1.4
300
5
—
—
—
1.4
300
5
μs
ms
START–UP
1
—
—
0
180
250
—
—
0
120
600
—
—
0
150
750
mV pk
50
120
150
3
SMTR SERIES
30 WATT
DC/DC C
ONVERTERS
Notes
1. Tc = –55°C to +125°C.
2. Up to 90% of the total output current/power is available from either output
power.
3. Operation is limited below 16 V (see Figure 21).
4. Effect on the negative output under the following conditions:
+P
out
20% to 80%; –P
out
80% to 20%
5. Effect on the negative output under the following conditions:
+P
50%; –P
10% to 50%
6. Tested with 3300 pF ceramic bypass capacitors connected externally from
input common to case and output common to case
7. Indefinite short circuit protection not guaranteed above 125°C case.
8. Recovery time is measured from application of the transient to point at which
Vout is within 1% of final value.
9. Transition time
≥
10 μs.
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified.