B0503XT-W2R2 Datasheet, PDF (1/4 Pages) MORNSUN Science& Technology Ltd. – DC/DC Converter

DC/DC Converter
B_XT-W2R2 Series
0.25W, Fixed input voltage, isolated & unregulated
single output
FEATURES
z Continuous short circuit protection
z Efficiency up to 79%
z Operating temperature range: -40℃ to +105℃
z Isolation voltage: 1.5K VDC
z Ultra-Low ripple & noise
z Miniature SMD package
Patent Protection RoHS
z Internal surface mounted design
z International standard pin-out
B_XT-W2R2 series is specially designed for applications where an isolated voltage is required in a distributed power supply system. It is
suitable for
1.Where the voltage of the input power supply is stable (voltage variation: ±10%Vin);
2.Where isolation is necessary between input and output (isolation voltage ≤1500VDC);
3.Where do not has high requirement of line regulation , load regulation and the ripple & noise of the output voltage;
Such as: pure digital circuits, low frequency analog circuits, and relay-driven circuits.
Selection Guide
Input Voltage (VDC)
Part No.
Nominal
(Range)
B0503XT-W2R2
B0505XT-W2R2
5
(4.5-5.5)
B1205XT- W2R2
B1212XT- W2R2
B2405XT- W2R2
12
(10.8-13.2)
24
(21.6-26.4)
Output
Output Voltage
(VDC)
3.3
5
5
12
Output Current (mA)
(Max./Min.)
76/8
50/5
50/5
21/2
5
50/5
Input Specifications
Item
Operating Conditions
Min.
5V input
--
Input Current (full load / no-load) 12V input
--
24V input
--
5V input
-0.7
Surge Voltage (1sec. max.)
12V input
-0.7
24V input
-0.7
5V input
--
Reflected Ripple Current
12V/24V input
--
Input Filter
Efficiency
(%,Min./Typ.)
@ Full Load
69/74
74/79
74/79
74/79
66/71
Max. Capacitive
Load
(μF)
220
Typ.
Max.
68/15
--
27/10
--
15/8
--
--
9
--
18
--
30
20
--
5
--
Capacitor filter
Unit
mA
VDC
mA
Output Specifications
Item
Operating Conditions
Min.
Typ.
Max.
Unit
Output Voltage Accuracy
See tolerance envelope graph (Fig. 1)
Line Regulation
Input voltage change:
±1%
3.3V output
5V/12V output
--
--
±1.5
--
--
--
±1.2
3.3V output
--
15
20
Load Regulation
10%-100% load
5V output
--
12
15
%
12V output
--
7
10
Ripple & Noise*
20MHz bandwidth
--
10&20
--
mVp-p
Temperature Drift Coefficient 100% load
--
--
±0.03
%/℃
Output Short Circuit Protection
Continuous, self-recovery
Note: * Ripple and noise tested with “parallel cable” method, please see DC-DC Converter Application Notes for specific operation methods.
2014.05.22-A/1
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MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation