B0503S/D-1W MORNSUN [MORNSUN Science& Technology Ltd.], B0503S/D-1W Datasheet - Page 2

• Manufacturer Part Number: B0503S/D-1W
• Description: SINGLE OUTPUT MINIATURE SIP/DIP PACKAGE
• Manufacturer: MORNSUN [MORNSUN Science& Technology Ltd.]

connected to the input and output ends of the DC/DC converter, see (Figure 1).
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).
Item
Output power
Line regulation
Load regulation
Output voltage accuracy
Temperature drift
Ripple & Noise*
Switching frequency
*
Converter section, application notes.
OUTPUT SPECIFICATIONS
APPLICATION NOTE
Requirement on output load
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 (B_S-W2 & B_D-W2 Series).
Recommended circuit
Output Voltage Regulation and Over-voltage Protection Circuit
protection is a linear voltage regulator with overheat protection that is connected to the input
or output end in series (Figure 2).
Overload Protection
against overload. The simplest 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
Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power
The copyright and authority for the interpretation of the products are reserved by Mornsun
If you want to further decrease the input/output ripple, an “LC” filtering network may be
It should also be noted that the inductance and the frequency of the “LC” filtering network
To ensure this module can operate efficiently and reliably, During operation, the minimum
The simplest device for output voltage regulation, over-voltage and over-current
Under normal operating conditions, the output circuit of these products has no protection
Test Conditions
For Vin change of 1%(3.3V output)
For Vin change of 1%(others )
10% to 100% load (3.3V output)
10% to 100% load (5V output)
10% to 100% load (9V output)
10% to 100% load (12V output)
10% to 100% load (15V output)
100% full load
20MHz Bandwidth
Full load, nominal input
See tolerance envelope graph
Min.
0.1
Typ.
12.8
8.3
6.8
6.3
100
15
75
Max.
1.5
1.2
0.03
20
15
10
10
10
100 mVp-p
1
Units
%/°C
KHz
W
%
TYPICAL CHARACTERISTICS
RECOMMENDED CIRCUIT
capacitor in the application field with less than 0.5
watt output.
GND
Vin
It’s not recommended to connect any external
B_S-1W & B_D-1W
GND
GND
Vin
Vin
EXTERNAL CAPACITOR TABLE
(VDC)
3.3/5
Specifications subject to change without notice.
Vin
12
24
-
C
REG
L
(uF)
Cin
4.7
2.2
Operating Temp.( C)
DC DC
1
-
DC
(Figure 1)
(Figure 2)
DC DC
A/3-2009
DC
(VDC)
3.3/5
Vout
12
15
9
o
REG
L
(TABLE 1)
Page 2 of 3
C
Cout
(uF)
4.7
2.2
10
1
+Vo
+Vo
0V
0V
+Vo
0V