B0503XT-1W MORNSUN [MORNSUN Science& Technology Ltd.], B0503XT-1W Datasheet - Page 2

• Manufacturer Part Number: B0503XT-1W
• Description: SINGLE OUTPUT, SMD DC-DC CONVERTER
• Manufacturer: MORNSUN [MORNSUN Science& Technology Ltd.]

RECOMMENDED REFLOW SOLDERING PROFILE
Storage humidity
Operating temperature
Storage temperature
Temp. rise at full load
Lead temperature
Cooling
Package material
Short circuit protection*
MTBF
Weight
*Supply voltage must be discontinued at the end of short circuit duration.
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
COMMON SPECIFICATION
Item
TYPICAL CHARACTERISTICS
MORNSUN reserves the copyright
1.85MAX
2.54 0.1
(0.100 0.004)
(0.073)
1.35MAX
(0.053)
±
±
12.70
(Side view)
(Top view)
(0.100) (0.100)
(0.283)
(0.266)
2.54
(0.300)
7.19
6.76
7.62
(0.500)
Test Conditions
1.5mm from case for 10 seconds
2 50
2 00
1 50
1 00
50
0
0.25
0.50
0.60 0.05
(0.024 0.002)
5.00 。
(0.012)
A
0.30
±
(0.020)
±
(0.079)
2.00
Specifications subject to change without notice.
Time ( s ec .)
Note:
Unit:mm(inch)
Pin section:0.60*0.25mm(0.024*0.010inch)
Pin tolerances: 0.10mm( 0.004inch)
General tolerances: 0.15mm( 0.006inch)
B_T-1W
FOOTPRINT DETAILS
NC:No Connection
RECOMMENDED FOOTPRINT
Top
8 7 6
1 2 3 4
3,6,7
90
( >22 0 C )
(0.039)
Pin
1
2
4
5
8
view,grid:2.54*2.54mm(0.1*0.1inch)
Se c
First Angle Projection
Function(T)
5
o
Ma x
GND
3500
+Vo
Min
-40
Vin
NC
NC
-55
0V
+
26 0 C
10
22 0 C
Operating Temp.( C)
Sec
+
Epoxy Resin(UL94V-0)
o
o
B_(X)T-1W
Free air convection
Max
8
1 2
Function(XT)
15
+
Typ
No Pin
GND
+Vo
Vin
NC
0V
+
5
4
Max
1.41
o
125
260
95
85
25
1
K Hours
Units
°C
%
g
s
B_(X)T-1W
Requirement on output load
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.
Recommended testing circuit
ripple, an “LC” filtering network may be connected
to the input and output ends of the DC/DC
converter, see (Figure 1).
the frequency of the “LC” filtering network should be
staggered with the DC/DC frequency to avoid
mutual interference. 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 (Table 1).
Output Voltage Regulation and Over-voltage
Protection Circuit
Overload Protection
application field with less than 0.5 watt output.
It’s not recommend to connect any external capacitor in the
APPLICATION NOTE
regulation,
protection is a linear voltage regulator with
overheat protection that is connected to the input
or output end in series (Figure2).
circuit of these products has no protection against
over-current
method is to connect a self-recovery fuse in series
at the input end or add a circuit breaker to the
circuit.
No parallel connection or plug and play.
GND
GND
Vin
Vin
To ensure this module can operate efficiently and
If you want to further decrease the input/output
It should also be noted that the inductance and
The
Under normal operating conditions, the output
Single Output
GND
Vin
EXTERNAL CAPACITOR TABLE (Table 1)
(VDC)
simplest
Cin
3.3/5
REG
Vin
12
24
-
-
DC DC
and short-circuits. The simplest
over-voltage
L
DC DC
0.47
(uF)
Cin
（Figure2）
4.7
2.2
A/2-2008
device
(Figure 1)
-
-
DC
DC
REG
(VDC)
3.3/5
Vout
12
15
24
9
for
and
L
output
+Vout
0V
Cout
+Vout
0V
Page 2 of 2
Cout
0.47
(uF)
4.7
2.2
10
1
over-current
+Vo
0V
voltage