DC-DC
2 Watts
IU Series
•
•
•
•
•
•
•
SIP or DIP Package
Wide 2:1 Input Range
xppower.com
Regulated Single & Dual Output
1000 VDC Isolation, 3000 VDC Option
Continuous Short Circuit Protection
Efficiency up to 78%
-40 °C to +85 °C Operating Temperature
Specification
Input
• 5 V models: 4.5 - 9.0 V
12 V models: 9.0 - 18.0 V
24 V models: 18.0 - 36.0 V
48 V models: 36.0 - 72.0 V
Input Current
• See table
Input Reflected Ripple
• 35 mA pk-pk through 12 µH inductor,
5 Hz to 20 MHz
Input Filter
• Capacitor
Input Voltage Range
General
Efficiency
Isolation Voltage
Input to Output
Capacitance
Switching Frequency
MTBF
• See table
• 1000 VDC input to output 1 min
Optional 3000 VDC (see note 2)
• 60 pF
• 100-650 kHz variable
• >2.7 MHrs to MIL-STD-217F
Output
Output Voltage
Output Voltage Balance
Initial Set Accuracy
Start Up Rise Time
Line Regulation
Load Regulation
Cross Regulation
Transient Response
Ripple & Noise
Short Circuit Protection
Current Limiting
Remote On/Off
•
•
•
•
•
•
•
•
•
•
•
•
See tables
±1% between dual output rails
±2%
100 ms typical
±0.5%
±1% for 25-100% load change
±5%
±3% deviation recovering to <1% within
300 µs for 25% load change
80 mV pk-pk, 20 MHz BW. See note 6.
Continuous with auto recovery
Typically 110% of max Iout
Applying 5 V via 1 kΩ current limiting
resistor & diode to pin 3 turns output off
±0.02/°C max
See table
Physical
Case Material
• Non-conductive black plastic (UL94V-0
rated). Optional metal:
nickel coated copper
• SIP case: Alloy 42 solder coated
DIP case: ø0.5 mm brass solder coated
• Epoxy (UL94V-0 rated)
• 260 ºC 1.5 mm from case for 10 s
Pin Material
Potting Material
Lead Soldering
Temperature
Environmental
Operating Temperature
• -40 °C to +85 °C, derate from 100% load
at +85 °C to 0% load at +100 °C
Storage Temperature
• -40 °C to +125 °C
Case Temperature
• +100 °C max
Humidity
• Up to 95% RH, non-condensing
Cooling
• Convection-cooled
Temperature Coefficient
•
Maximum Capacitive
•
Load
Remote On/Off
• Optional on SIP package models applying
5 V via 1 kΩ current limiting resistor and
diode turns output off (see note 4)
DC-DC
Models and Ratings
Input Voltage
No Load Input
Current
15
15
30
30
30
60
15
15
15
15
15
15
8
8
8
8
8
8
6
6
6
6
6
6
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
Full Load Input
Current
492
571
555
555
547
533
205
216
213
208
213
208
98
108
104
104
104
104
48
56
53
53
53
52
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
Output Voltage
3.3
5.0
9.0
12.0
15.0
24.0
3.3
5.0
9.0
12.0
15.0
24.0
3.3
5.0
9.0
12.0
15.0
24.0
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
V
V
V
V
V
V
V
Output Current
500
400
222
167
133
83
500
400
222
167
133
83
500
400
222
167
133
83
500
400
222
167
133
83
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
Efficiency
67%
70%
72%
72%
73%
75%
67%
77%
78%
80%
78%
80%
70%
77%
80%
80%
80%
80%
71%
74%
78%
78%
78%
80%
Max Capactive load
Single Output
3300 µF
3300 µF
470 µF
470 µF
470 µF
220 µF
3300 µF
3300 µF
470 µF
470 µF
470 µF
220 µF
3300 µF
3300 µF
470 µF
470 µF
470 µF
220 µF
3300 µF
3300 µF
470 µF
470 µF
470 µF
220 µF
Dual Output
±1000 µF
±1000 µF
±220 µF
±220 µF
±220 µF
±100 µF
±1000 µF
±1000 µF
±220 µF
±220 µF
±220 µF
±100 µF
±1000 µF
±1000 µF
±220 µF
±220 µF
±220 µF
±100 µF
±1000 µF
±1000 µF
±220 µF
±220 µF
±220 µF
±100 µF
IU
Model
Number
(1,2,3,4,5)
IU0503SA
IU0505SA
IU0509SA
IU0512SA
IU0515SA
IU0524SA
IU1203SA
IU1205SA
IU1209SA
IU1212SA
IU1215SA
IU1224SA
IU2403SA
IU2405SA
IU2409SA
IU2412SA
IU2415SA
IU2424SA
IU4803SA
IU4805SA
IU4809SA
IU4812SA
IU4815SA
IU4824SA
4.5-9.0 V
9.0-18.0 V
18.0-36.0 V
36.0-72.0 V
Notes
1. For dual inline package replace ‘S’ in model number with ‘D’.
2. For optional 3 kV isolation add suffix ‘-H’ to the model number.
3. For dual output delete suffix ‘A’ & split output currents equally between rails.
4.
5.
6.
7.
For optional Remote On/Off on SIP models, add suffix ‘-R’ to model number.
For optional metal case, add suffix ‘-M’ to model number.
Output capacitor of 100 µF required to meet quoted ripple & noise.
Minimum load of 25% required to meet quoted specifications.
Mechanical Details
SIP Package - Non-conductive Plastic Case
SIP Package - Nickel Coated Copper Case
Dimensions are in inches (mm)
Weight: Plastic case = 4.5 g
Metal case = 6.5 g
PIN CONNECTIONS
Pin
0.44
(11.10)
0.86
(21.85)
Printed Face
0.42
(10.60)
0.36
(9.20)
0.86
(21.85)
Printed Face
0.44
(11.10)
0.42
(10.60)
0.36
(9.20)
Single
-V Input
+V Input
Opt. ROF*
N.P. / N.C.
+V Output
-V Output
NC
Dual
-V Input
+V Input
Opt. ROF**
N.C.
+V Output
-V Output
Common
1
2
0.02
(0.50)
0.10
(2.54)
0.60
(15.24)
0.02
(0.50)
0.12
(3.05)
0.02
(0.50) 0.10
(2.54)
0.70
(17.78)
0.12
(3.05)
3
5
6
7
8
0.14
0.36 (3.50)
(9.20)
Bottom View
5 6 7 8
1 2 3
0.01
(0.25)
0.14
0.36 (3.50)
(9.20)
Bottom View
5 6 7 8
1 2 3
0.01
(0.25)
0.02
(0.50)
*When optional ROF is present pin 5 is No
Connection. When not present pin 3 & 5
are No Pin.
**When optional ROF is present pin 5 is No
Connection. When not present pin 3 & 5
are No Connection.
Dimensions are in inches (mm)
Weight: Plastic case = 6.0 g
Metal case = 8.0 g
PIN CONNECTIONS
Pin
Single
-V Input
-V Input
NC
NC
+V Output
-V Output
+V Input
+V Input
Dual
-V Input
-V Input
Common
-V Output
+V Output
Common
+V Input
+V Input
DIP Package - Non-conductive Plastic Case
DIP Package - Nickel Coated Copper Case
0.92
(23.40)
0.12
(3.05)
0.92
(23.40)
0.12
(3.05)
0.55
(14.00)
0.40
(10.16)
0.55
(14.00)
0.40
(10.16)
0.08
(1.92)
0.11
(2.81)
0.70
(17.78)
6
Bottom View
8
DIA.
0.02
(0.50)
0.08
(1.92)
0.11
(2.81)
0.70
(17.78)
6
Bottom View
8
DIA.
0.02
(0.50)
1
2
1 2
0.40
(10.16)
16 15
0.08
(1.92)
0.10
(2.54)
1 2
0.02
(0.50)
0.40
(10.16)
16 15
0.02
(0.50)
0.08
(1.92)
0.10
(2.54)
0.02
(0.50)
9
0.02
(0.50)
6
8
9
11
15
16
11
9
11
0.20
(5.08)
0.20
(5.08)
07-Apr-08
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