3 Watt SMT Single Series DC/DC Converters
Features
SMT Technology
2:1 Input Range
High Efficiency up to 83%
I/O Isolation 1500VDC
Short Circuit Protected
MTBF > 1,000,000 Hours
Selection Chart
Model
12S3R3.700SMT
12S5.600SMT
12S12.250SMT
12S15.200SMT
24S3R3.700SMT
24S5.600SMT
24S12.250SMT
24S15.200SMT
48S3R3.700SMT
48S5.600SMT
48S12.250SMT
48S15.200SMT
Input Range
VDC
Min
9
9
9
9
18
18
18
18
36
36
36
36
Max
18
18
18
18
36
36
36
36
75
75
75
75
VDC
3.3
5
12
15
3.3
5
12
15
3.3
5
12
15
Output
mA
700
600
250
200
700
600
250
200
700
600
250
200
Power
W
3
3
3
3
3
3
3
3
3
3
3
3
A
2401 Stanwell Drive • Concord, California 94520 • Ph: 925/687-4411 or 800/542-3355 • Fax: 925/687-3333 • www.calex.com • Email: sales@calex.com
1
eco# 020717-1, eco# 031119-5, eco# 040727-3, eco# 041007-1
3 Watt SMT Single Series DC/DC Converters
Input Parameters
Model
Voltage Range
Input Current No Load
Full Load
Reflected Ripple
Under Voltage Shutdown
Reverse Polarity
Input Current
Short Circuit Input Power
Input Filter
Efficiency
Switching Frequency
Input Surge Voltage
(1000 ms)
Internal Power Dissipation
Recommended Fuse
Model
Voltage Range
Input Current No Load
Full Load
Reflected Ripple
Under Voltage Shutdown
Reverse Polarity
Input Current
Short Circuit Input Power
Input Filter
Efficiency
Switching Frequency
Input Surge Voltage
(1000 ms)
Internal Power Dissipation
Recommended Fuse
Model
Voltage Range
Input Current No Load
Full Load
Reflected Ripple
Under Voltage Shutdown
Reverse Polarity
Input Current
Short Circuit Input Power
Input FIlter
Efficiency
Switching Frequency
Input Surge Voltage
(1000 ms)
Internal Power Dissipation
Recommended Fuse
MIN
TYP
MAX
TYP
TYP
TYP
MAX
MAX
MAX
TYP
TYP
MIN
MAX
MAX
76
80
300
-0.7
100
2500
200 mA Slow Blow Type
48S3R3.700SMT
TYP
TYP
MIN
MAX
MAX
48S5.600SMT
36.0
48.0
75.0
3
63
3
78
10
32
0.5
1500
Pi Filter
83
83
%
kHz
VD C
mW
mA
3
75
76
80
300
-0.7
50
2500
350 mA Slow Blow Type
48S12.250SMT
48S15.200SMT
MIN
TYP
MAX
TYP
TYP
TYP
MAX
MAX
MAX
24S3R3.700SMT
MIN
TYP
MAX
TYP
TYP
TYP
MAX
MAX
MAX
TYP
TYP
MIN
MAX
MAX
24S5.600SMT
18.0
24.0
36.0
5
127
5
156
15
16
0.5
1500
Pi Filter
83
83
%
kHz
VD C
mW
mA
Units
VD C
3
75
mA
mA
VD C
A
mW
5
151
5
151
75
79
300
-0.7
25
2500
750 mA Slow Blow Type
24S12.250SMT
24S15.200SMT
12S3R3.700SMT
12S5.600SMT
9.0
12.0
18.0
20
257
20
316
25
8
0.5
1500
Pi Filter
82
82
20
305
20
305
12S12.250SMT
12S15.200SMT
Units
VD C
mA
mA
VD C
A
mW
%
kHz
VD C
mW
mA
Units
VD C
mA
mA
VD C
A
mW
A
2401 Stanwell Drive • Concord, California 94520 • Ph: 925/687-4411 or 800/542-3355 • Fax: 925/687-3333 • www.calex.com • Email: sales@calex.com
2
eco# 020717-1, eco# 031119-5, eco# 040727-3, eco# 041007-1
3 Watt SMT Single Series DC/DC Converters
Output Parameters
Model
Output Voltage
Output Current
Output Voltage Accuracy
Load Regulation,
Io=10% to 100%
Line Regulation,
Vin=Min. to Max.
Ripple & Noise (20MHz)
Ripple & Noise (20MHz),
Over Line, Load & Temp
Ripple & Noise (20MHz)
Over Load
Transient Recovery Time,
25% Load Step Change
Transient Response
Deviation,
25 % Load Step Change
Temperature Coefficient
Short Circuit
MIN
MAX
TYP
MAX
TYP
MAX
TYP
MAX
TYP
MAX
MAX
MAX
MIN
TYP
MAX
TYP
MAX
TYP
MAX
12S3R3.700SMT
24S3R3.700SMT
48S3R3.700SMT
3.3
70
700
12S5.600SMT
24S5.600SMT
48S5.600SMT
5
60
600
±0.5
±1.0
±0.3
±1.0
±0.1
±0.3
50
75
100
10
120
200
500
±2
±6
±0.01
±0.02
Continuous
12S12.250SMT
24S12.250SMT
48S12.250SMT
12
25
250
12S15.200SMT
24S15.200SMT
48S15.200SMT
15
20
200
Units
VD C
mA
%
%
%
mV P-P
mV P-P
mV RMS
%
µs
%
%/°C
NOTES
(1) Specifications typical at Ta=+25°C, resistive load, nominal input
voltage, full rated output current unless otherwise noted.
(2) Transient recovery time is measured to within 1% error band for
a step change in output load 75% to 100%
(3) When measuring output ripple & noise, an external 0.1µF
ceramic capacitor is recommended to be placed from +Vout to
-Vout.
(4) Specifications subject to change without notice.
(5) Water Washability - Calex DC/DC converters are designed to
withstand most solder/wash processes. Careful attention should
be used when assessing the applicability in your specific
manufacturing process. Converters are not hermetically sealed.
General Specifications
All Models
Isolation
Isolation Voltage,
60 Seconds
Isolation Resistance,
500 VDC
Isolation Capacitance,
100kHz, 1V
Environmental
Operating Temperature
Storage Temperature
Humidity
Cooling
General
Case Size
Case Material
Weight
MIN
TYP
TYP
MAX
MIN
MAX
MIN
MAX
MAX
1500
1000
65
100
-40
+71
-40
+125
95
Free-Air Convection
1.27 x 0.74 x 0.4 inches
32.3 x 18.8 x 10.2mm
Non-Conductive Black Plastic
10g
VDC
Mohms
pF
Units
A
°C
°C
%
2401 Stanwell Drive • Concord, California 94520 • Ph: 925/687-4411 or 800/542-3355 • Fax: 925/687-3333 • www.calex.com • Email: sales@calex.com
3
eco# 020717-1, eco# 031119-5, eco# 040727-3, eco# 041007-1
3 Watt SMT Single Series DC/DC Converters
Mechanical Configuration
0.085 (2.16)
0.10
(2.54)
Top
0.70
(17.8)
Side
1.27
(32.3)
Pin
1, 2
3, 10, 11, 12,
14, 22
13
15
23, 24
NC: No Connection
Function
-INPUT
NC
+OUTPUT
-OUTPUT
+INPUT
0.02
(0.5)
Solder Reflow Profile
0.58 (14.8)
0.63 (16.1)
0.74 (18.8)
Denotes
Pin 1
0.02 (0.5)
0.40 (10.2)
260
240
220
200
Temperature (°C)
180
160
140
120
100
80
60
40
20
0
0
30
PRE-HEAT AND TEMPERATURE SOAK
All dimensions are typical in inches (mm).
Tolerance X.XX = +/- 0.01 (+/- 0.25)
0.15
SOLDER
REFLOW
PEAK
TEMP.
235°C
60
90
120
150
180
210
240
270
300
Typical Application
Time (Seconds)
Figure 1.
The profile in Figure 1 should be used as a starting point for your own
experiments. Obviously your optimal profile will be a function of many
factors including, type of paste, paste thickness, board thickness,
number of conductive layers, copper weight, the density of surrounding
components, etc. It is recommended that the peak temperature
should not exceed +235°C for an extended period of time.
A
Derating Curve
Connecting Pin Patterns
2401 Stanwell Drive • Concord, California 94520 • Ph: 925/687-4411 or 800/542-3355 • Fax: 925/687-3333 • www.calex.com • Email: sales@calex.com
4
eco# 020717-1, eco# 031119-5, eco# 040727-3, eco# 041007-1
嵌入式系统
