QA-XS&QB-XLS Series
0.25W, FIXED INPUT, ISOLATED&UNREGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER
PRODUCT PROGRAM
Input
Output
Current (mA)
Part
Efficiency
(%, Typ)
Voltage (VDC)
Voltage
(VDC)
Number
Nominal
Nominal
Max
75.8
50
QB0303XLS
QB0305XLS
QA0505XS
QA0509XS
QA0512XS
QA0515XS
QB0505XLS
QB0509XLS
QB0512XLS
QB0515XLS
QA1205XS
QA1209XS
QA1212XS
QA1215XS
QB1203XLS
QB1205XLS
QB1209XLS
QB1212XLS
QB1215XLS
QA2405XS
QA2409XS
QA2412XS
QA2415XS
QB2405XLS
QB2409XLS
QB2412XLS
QB2415XLS
QB2424XLS
3.3
5
62
65
62
64
66
65
64
65
67
65
62
63
64
65
62
65
66
67
66
63
64
65
65
63
63
65
65
64
3.3
3.0-3.6
FEATURES
±5
±9
±12
±15
5
±25
±13.8
±10.4
±8.3
50
◆Small Footprint
◆1KVDC Isolation
◆SIP Package
5
4.5-5.5
9
27.8
20.8
16.7
±25
±13.8
±10.4
±8.3
75.8
50
◆Internal SMD Construction
12
◆
Temperature Range: -40
℃to +85℃
15
◆No Heat sink Required
±5
±9
±12
±15
3.3
5
◆No External Component Required
◆Industry Standard Pin out
12
10.8-13.2
MODEL SELECTION
①
②
③
④
⑤
QB 05 05 X LS
9
27.8
20.8
16.7
±25
±13.8
±10.4
±8.3
50
①Product Series
③Output Voltage
⑤SIP-7 Package
②Input Voltage
④Fixed Input
12
15
±5
±9
±12
±15
5
APPLICATIONS
The QA-XS&QB-XLS 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.
24
21.6-26.4
9
27.8
20.8
16.7
10.4
12
15
These products apply to:
24
1) Where the voltage of the input power supply
is fixed (voltage variation ±10%);
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 not demanding.
Such as: purely digital circuits,ordinary low
frequency analog circuits, and IGBT power
device driving circuits.
COMMON SPECIFICATIONS
Item
Test conditions
Min
Typ
Max
95
Units
%
Storage humidity
Operating Temperature
Storage Temperature
Temp. rise at full load
Lead temperature
Short circuit protection*
Cooling
-40
-55
85
125
25
℃
15
1.5mm from case for 10 seconds
300
1
s
MICRODC RESERVES THE COPYRIGHT
Free air convection
Plastic (UL94-V0)
Case material
MTBF
3500
K hours
g
Weight
2.1
*Supply voltage must be discontinued at the end of short circuit duration.
http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
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