DC DC
1 Watt
ISF Series
•
•
•
•
•
•
•
Single & Dual Output
SMD Package
Industry Standard Pinouts
xppower.com
1000 VDC Isolation, 3000 VDC Optional
MTBF >3.5 MHrs
40 º C to +85 º C Operation
3 Year Warranty
Specification
Input
Input Voltage Range
Input Reverse Voltage
Protection
• Nominal ±10%
• None
Input Voltage Output Voltage
3.3 VDC
3.3
5.0
3.3
5.0
9.0
12.0
15.0
5.0
9.0
12.0
15.0
3.3
5.0
9.0
12.0
15.0
24.0
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
Output Current Efficiency (typ)
300
200
300
200
110
84
67
200
110
84
67
300
200
110
84
67
42
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
73%
74%
72%
77%
76%
79%
78%
69%
73%
73%
74%
69%
70%
72%
75%
76%
77%
Model Number
(4,5)
ISF0303A
(1,2,3)
ISF0305A
(1,2,3)
ISF0503A
(2)
ISF0505A
(1,2,3)
ISF0509A
(1,2,3)
ISF0512A
(1,2,3)
ISF0515A
(1,2,3)
ISF1205A
(1,2,3)
ISF1209A
(1,2,3)
ISF1212A
(1,2,3)
ISF1215A
(1,2,3)
ISF2403A
ISF2405A
(1)
ISF2409A
(1)
ISF2412A
(1)
ISF2415A
(1)
ISF2424A
5 VDC
Output
Output Voltage
Minimum Load
Line Regulation
Load Regulation
Setpoint Accuracy
Ripple & Noise
See table
10%
(6)
1.2%/1%
∆
Vin
7.5% max for a 10-100% load change
100-110% of nominal at 10% load
Single output: 100 mV pk-pk,
Dual output: 75 mV pk-pk,
20 MHz bandwidth
Temperature Coefficient
• 0.03%/°C
•
•
•
•
•
•
12 VDC
24 VDC
Notes
1. For dual output models, delete suffix ‘A’ at the end of the part number and
split current equally between two outputs.
2. For single output 3000 VDC isolation, add ‘-H’ to the end of the part number.
3. For dual output 3000 VDC isolation, replace ‘A’ with ‘-H’ in the part number.
4. For package type see connections table.
5. Single & dual output 1 kV models can have optional pinout, add suffix ‘-X’ to
part number
6. Operation at no load will not damage device but may not meet all specifications.
General
Efficiency
Isolation Voltage
Isolation Resistance
Switching Frequency
MTBF
•
•
•
•
See table
1000 VDC standard, 3000 VDC optional
10
9
Ω
5/12 V input: 100 kHz, 24 V input: 500 kHz
typical at nominal input, full load
• >3.5 MHrs to MIL-HDBK-217F at 25 °C, GB
Environmental
Operating Temperature
Storage Temperature
Case Temperature
Cooling
Lead Temperature
•
•
•
•
•
-40 °C to +85 °C, full load
-55 °C to +125 °C
105 °C max
Convection-cooled
260 °C, 0.06 in (1.5 mm) from case, 10 s
Mechanical Details
0.167
(4.25)
Package A
0.600 (15.24)
0.400
(10.16)
0.250
(6.50)
0.246
(6.25)
Side View
0.100
(2.54)
0.010
(0.25)
Recommended Footprint
Top View grid: 0.1 x 0.1 in (2.54 x 2.54 mm)
A1
A2
0.441
(11.20)
0.295
(7.50)
Top View
10 9
1
0.047
(1.20)
2
8
3
7 6
4 5
0.071
(1.80)
10
1
2
7
4 5
0.100
±0.004
(2.54
±0.10
)
0.500 (12.70)
0.300
(7.62)
0.024
±0.002
(0.60
±0.05
)
0.163
(4.13)
Package B
B1
B2
0.246
(6.25)
0.441
(11.20)
Connections
No.
O/P
1
1
1
2
2
2
Isolation
1 kV
1 kV
3 kV
1 kV
1 kV
3 kV
Pinout
Standard
Optional ‘-X’
Optional ‘-H’
Standard
Optional ‘-X’
Optional ‘-H’
Package
B1
B2
C1
A1
A2
C1
+Vin
2
2
2
2
2
2
-Vin
1
1
1
1
1
1
-Vout
N/A
N/A
N/A
5
5
6
0V
4
4
5
4
4
5
+Vout
5
5
8
7
7
8
N/C
3,6,7,8
8
3,6,7,
10,11,12
3,6,8,9,10
10
3,7,10,
11,12
0.295
(7.50)
Top View
0.236
(6.00)
Side View
0.100
(2.54)
0.010
(0.25)
8
1
7
2
6
3
5
4
0.079
(2.00)
8
1
2
5
4
0.100
(2.54
±0.10
)
±0.004
0.024
±0.002
(0.60
±0.05
)
0.600 (15.24)
0.500 (12.70)
0.254
(6.50)
0.244
(6.25)
0.039
(1.00)
C1
0.079
(2.00)
8 7
5 6
0.039
(1.00)
Package C
0.441
(11.20)
0.295
(7.50)
Top View
0.024
(0.60)
Side View
0.166
(4.25)
12 11 10
1 2
3
0.100
(2.54)
0.051
(1.30)
Notes
1. All dimensions in inches (mm)
2. Tolerance: ±0.010 (±0.25)
3. Weight: 0.004 lbs (1.7 g)
4. Pin tolerance: ±0.004 (±0.10 mm)
0.01
(0.25)
0.053
(1.35)
0.02 (0.25)
5
0.335 (8.5)
06-July-12
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