1.25
(31.8)
0.80
(20.3)
0.60
(15.2)
0.40
(10.2)
0.15
(3.8)
0.08
(2.0)
0.10
(2.5)
0.20
(5.1)
Natural convection cooling
0%
25%
50%
75%
100%
125%
-25
0
25
50
75
100
Ambient Temperature(
o
C)
O
u
tput c
u
r
r
en
t
The W7 Family of high efficiency DC/DC converters offer power levels of up to 7 Watt, which exceeds that of other sub-bricks with the same package, while also providing Surface Mount Process-
able construction. With a wide input voltage range and single and multi-outputs, these converters provide versatility without sacrificing the board space. All models feature an input filter, continuous
short circuit protection and regulated outputs. The fully enclosed, encapsulated construction facilitates maximum power delivered with the highest efficiency of up to 83%. All converters combine
creative design practices with highly derated power devices to achieve very high reliability, high performance and low cost solution to systems designers.
Specifications & Features Summary
No minimum load required
Regulated Outputs
-25C to +71C ambient operation
Continuous Short-circuit protection
1500V, 10M
input-to-output isolation
Pi Input Filter
Voltage Accuracy 2%
2:1 Input Range
Applications
Servers, Switches and Data Storage Networking Gear
Wireless Communications
Data Communications
Distributed Power Architecture
Telecommunications
Semiconductor Test Equipment
Industrial / Medical
1400 PROVIDENCE HIGHWAY
BUILDING 2
NORWOOD, MASSACHUSETTS 02062-5015
WWW.INTRONICS.COM
W7 SERIES
DC/DC MODULES
Typical at Ta= +25 C under nominal input voltages of 12V, 24V and 48VDC, unless noted. The information and specifications contained in this brief are believed to be accurate and reliable at the time of publication.
Specifications are subject to change without notice. Refer to product specification sheet for performance characteristics and application guidelines.
Consult factory for hundreds of other available input/output voltage configurations.
Approval Pending
Dual Output Typical Connections
Single Output Typical Connection
Intronics, Inc. 1400 Providence Highway, Building 2, Norwood, MA 02062-5015
Phone: 1-800-367-0004, 1-781-551-5500
Fax: 1-781-551-5555 Rev. A
5-sided metal shield
270 330KHz Switching Frequency
Input Undervoltage Lockout
Output Overvoltage Protection
Output Current Limiting
No airflow or heatsink required
Delivers up to 7.5W in 1"x1.25"x0.45" package with Industry-Standard SMD Pinouts
THROUGH-HOLE PACKAGES AVAILABLE (add suffix "T" to the part number)
Recommended Land Pattern
0
50
100
150
200
250
300
0
50
100
150
200
250
300
Recommended Reflow Profile
Through-Hole Mechanical Drawing
Derating Curve
Output
Input Current
Model
Number
Vin
Range
Voltage
Current
No Load
Full Load
Eff
(%)
Regulation
Line/Load
Startup delay
Typ (ms)
Overshoot
Typ (%)
Rise time
Typ (ms)
Hold Time
Typ (us)
Recovery
Typ (us)
Dynamic
Response
Output
Ripple/Noise
W7-12S5
5VDC
1500mA
25mA
801mA
78
0.2/1.1%
0.4
5
0.2
100
300
2 %
50mVp-p
W7-12S12
12VDC
625mA
25mA
762mA
82
0.2/0.2%
2.2
2
2
100
300
2 %
50mVp-p
W7-12S15
15VDC
500mA
25mA
762mA
82
0.2/0.1%
2.5
2
2.3
100
300
2 %
50mVp-p
W7-12D5
5VDC
750mA
30mA
791mA
79
0.2/0.5%
1.7
4
1.5
100
300
2 %
60mVp-p
W7-12D12
12VDC
310mA
30mA
753mA
83
0.2/0.1%
5
2
4.5
100
300
2 %
60mVp-p
W7-12D15
15VDC
250mA
30mA
753mA
83
0.2/0.1%
10
2
6
100
300
2 %
60mVp-p
W7-12S3.3
9-18Vdc
3.3VDC
1500mA
25mA
557mA
74
0.2/1.1%
0.5
10
0.4
100
300
2 %
50mVp-p
W7-24S5
5VDC
1500mA
20mA
396mA
79
0.2/1.1%
15
5
0.2
100
300
2 %
50mVp-p
W7-24S12
12VDC
625mA
20mA
381mA
82
0.2/0.2%
20
2
2
100
300
2 %
50mVp-p
W7-24S15
15VDC
500mA
20mA
381mA
82
0.2/0.1%
20
2
2.3
100
300
2 %
50mVp-p
W7-24D5
5VDC
750mA
25mA
386mA
81
0.2/0.5%
20
4
1.5
100
300
2 %
60mVp-p
W7-24D12
12VDC
310mA
25mA
377mA
83
0.2/0.1%
20
2
4.5
100
300
2 %
60mVp-p
W7-24D15
15VDC
250mA
25mA
377mA
83
0.2/0.1%
25
2
6
100
300
2 %
60mVp-p
W7-24S3.3
18-36Vdc
3.3VDC
1500mA
20mA
271mA
76
0.2/1.1%
20
10
0.4
100
300
2 %
50mVp-p
W7-48S5
5VDC
1500mA
10mA
195mA
80
0.2/1.1%
15
5
0.2
200
300
2 %
50mVp-p
W7-48S12
12VDC
625mA
10mA
190mA
82
0.2/0.2%
20
2
2
200
300
2 %
50mVp-p
W7-48S15
15VDC
500mA
10mA
190mA
82
0.2/0.1%
20
2
2.3
200
300
2 %
50mVp-p
W7-48D5
5VDC
750mA
15mA
193mA
81
0.2/0.5%
20
4
1.5
200
300
2 %
60mVp-p
W7-48D12
12VDC
310mA
15mA
188mA
83
0.2/0.1%
20
2
4.5
200
300
2 %
60mVp-p
W7-48D15
15VDC
250mA
15mA
188mA
83
0.2/0.1%
25
2
6
200
300
2 %
60mVp-p
W7-48S3.3
36-72Vdc
3.3VDC
1500mA
10mA
136mA
76
0.2/1.1%
20
10
0.4
200
300
2 %
50mVp-p
All Dimensions in inches (mm); tolerance xx = 0.02, xxx = 0.010
Pin size is 0.020" (0.5mm) DIA or 0.020' x 0.014"
1
TOP VIEW
2
3
24
23
9
22
10
11
12
5
15
14
13
16
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