FIXED INPUT,ISOLATED®ULATED Dual Output DC/DC Converters
SELECTION GUIDE
Input
Order code
Voltage(VDC)
2A-XSR
Series
Output
Voltage
(VDC)
Current
Max
Min
Efficiency
(%,Typ)
Nomi
nal
Range
Switching
Frequency
(KHz,Typ)
2A0503XSR
5
5
5
5
5
12
12
12
12
24
24
24
24
4.75-5.25
4.75-5.25
4.75-5.25
4.75-5.25
4.75-5.25
11.4-12.6
11.4-12.6
11.4-12.6
11.4-12.6
22.8-25.2
22.8-25.2
22.8-25.2
22.8-25.2
±3.3
±5
±9
±12
±15
±5
±9
±12
±15
±5
±9
±12
±15
±150
±200
±100
±83
±67
±150
±100
±83
±67
±150
±100
±83
±67
±15
±20
±10
±9
±7
±15
±10
±9
±7
±15
±10
±9
±7
69
70
62
64
65
70
63
65
68
70
63
67
69
100
55
67
67
200
83
91
91
200
83
100
200
91
FEATURES
◆
◆
◆
◆
2A0505XSR
2A0509XSR
2A0512XSR
2A0515XSR
2A1205XSR
2A1209XSR
2A1212XSR
2A1215XSR
2A2405XSR
2A2409XSR
2A2412XSR
2A2415XSR
RoHS compliant
Efficiency up to 86%
SIP Package
Wide temperature performance at full
2 Watt load,-40°C to 85°C
◆
◆
◆
◆
◆
◆
◆
◆
UL 94V-0 package material
No heatsink required
Small Footprint
Industry standard pinout
Power sharing on output
1KVDC isolation
3.3V,5V,9V,12V and 15V output
Internal SMD construction
No external components required
ISOLATION SPECIFICATIONS
Parameter
Isolation test voltage
Isolation resistance
Test conditions
Flash tested for 1 minute and 1mA max
Test at Viso=500VDC
Min.
1000
1000
Typ.
Max.
Units
VDC
MΩ
◆
◆
MTTF up to 1.5 million hours
MODEL SELECTION
2A 05 05 X S R
①Product
Series
③Output
Voltage
⑤SIP
Package
①
②
③
④
⑤
⑥
②Input
Voltage
④Fixed
Input
⑥Regulated
output
APPLICATIONS
The 2A_XSR series are specially designed
for applications where a group of polar power
supplies are isolated from the input power
supply in a distributed power supply system on
a circuit board.
These products apply to:
1) where the voltage of the input power supply
is fixed (voltage variation ≤±5%);
2) where isolation is necessary between input
and output (isolation voltage≥1000VDC);
3) where the regulation of the output voltage
and the output ripple noise are demanded.
OUTPUT SPECIFICATIONS
Parameter
Output power
Line regulation
Load regulation
Output voltage accuracy
Temperature drift
Output Ripple*
Output Noise*
For Vin change of ±5%
10% to 100% full load
100% full load
100% full load
20MHz Bandwidth
20MHz Bandwidth
20
75
Test conditions
Min
0.2
Typ.
Max.
2
±0.25
±1
±3
0.03
30
150
Units
W
%
%
%
%/°C
MV p-p
MV p-p
* Test ripple and noise by "parallel cable" method. See detailed operation instructions at Testing of Power
Converter section, application notes.
MICRODC R ESERVES THE COPYRIGHT
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 1 of 2
2A-XSR
Series
TEMPERATURE CHARACTERISTICS
Parameter
Storage humidity range
Operating temperature
Storage temperature
Lead temperature
Temp.rise at full load
Cooling
Case material
Short circuit protection
MTBF
Weight
05V output
Others*
3500
5.2
1.5mm from case for 10 seconds
20
-40
-55
Recommended circuit
Typ.
Max.
95
80
125
30
300
Conditions
Min.
Units
%
°C
°C
°C
°C
To get an extreme low ripple,an "LC" filtering network
may be connected to the input and output ends of the
DC/DC converter, which may produce a more significant
filtering effect.It should also be noted that the inductance
and the frequency of the "LC" filtering network should be
staggered with the DC/DC frequency to avoid mutual
interference (see figure 1).
Free air convection
Plastic(UL94-V0)
Continuous
1
S
K hours
g
*Supply voltage must be discontinued at the end of short circuit duration.
TYPICAL CHARACTERISTICS
Temperature Derating Graph
In some circuits which are sensitive to noise and ripple,
a filtering capacitor may be added to the DC/DC output
end and input end to reduce the noise and ripple.
However, the capacitance of the output filter capacitor
must be proper. If the capacitance is too big, a startup
problem might arise. For every channel of output,
provided the safe and reliable operation is ensured, the
greatest capacitance of its filter capacitor sees the
EXTERNAL CAPACITOR TABLE (see Table 1).
EXTERNAL CAPACITOR TABLE (TABLE 1)
Cin
Vout
Vin
(VDC)
5
12
24
-
(μF)
4.7
2.2
0.47
-
(VDC)
±5
±9
±12
±15
Cout
(μF)
4.7
2.2
1
0.47
OUTLINE DIMENSIONS & PIN CONNECTIONS
SIZE Graph
RECOMMENDED FOOTPRINT
Top view,grid:2.54mm(0.1inch)
diameter:1.00mm(0.039inch)
It's not recommend to connect any external capacitor in
the application field with less than 0.5 watt output.
Input Over-voltage Protection Circuit
The simplest device for input over-voltage protection is
a linear voltage regulator with overheat protection that is
connected to the input end in series (Figure 2).
FOOTPRINT DETAILS
Pin
1
Note:
Unit:mm(inch)
Pin section:0.50*0.3mm(0.020*0.012inch)
Pin section tolerances:±0.10mm(±0.004inch)
General tolerances:±0.25mm(±0.010inch)
2
7
9
10
Function
VIN
GND
+V0
-V0
0V
When the environment temperature is higher than 71℃,
the product output power should be less then 60% of the
rated power.
No parallel connection or plug and play.
Use dual output simultaneously, forbid opening output
pin (0V) to use as single output.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise
specified.Another 24V products, please inquire Our technical department!
Requirement on output load
To ensure this module can operate efficiently and reliably, During operation, the minimum output load is
not less than 10% of the full load, and that this product should never be operated under no load! If the
actual output power is very small, please connect a resistor with proper resistance at the output end in
parallel to increase the load.or use our company's products with a lower rated output power (IA_XS-1W
series).
RoHS COMPLIANT INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature
of 300°C for 10 seconds.
The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin
with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this
series are backward compatible with Sn/Pb soldering systems.
REACH COMPLIANT INFORMATION
This series has proven that this product does not contain harmful chemicals, it also has
harmful chemical substances through the registration, inspection and approval.
Microdc Professional Power Module,Inc.
Tel:0086-20-86000646
E-mail:tech@microdc.cn
Website:http://www.microdc.cn
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 2 of 2
Embedded System
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