FB1205S-2W MORNSUN Science& Technology Ltd., FB1205S-2W Datasheet - Page 2

• Manufacturer Part Number: FB1205S-2W
• Description: Single Output Dc-dc Converter
• Manufacturer: MORNSUN Science& Technology Ltd.

*Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of
Power Converter section, application notes.
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 (FB_S-1W).
Item
Output power
Line regulation
Load regulation
Output voltage accuracy
Temperature drift
Ripple & Noise*
Switching frequency
OUTPUT SPECIFICATIONS
TYPICAL CHARACTERISTICS
OUTLINE DIMENSIONS & PIN CONNECTIONS
APPLICATION NOTE
To ensure this module can operate efficiently and reliably, During operation, the minimum
Note:
Unit:mm(inch)
Pin secti on:0.50*0.30mm(0.020*0.012inch)
Pin diameter tolerances: 0.10mm( 0.004inch)
General tolerances: 0.25mm( 0.010i nch)
MORNSUN reserves the copyright
1 2
5
Test conditions
For Vin change of ±1%
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
(5V input)
(12V/24V input)
Specifications subject to change without notice.
RECOMMENDED FOOTPRINT
Top
diameter:1.00mm(0.039inch)
First Angle Projection
FOOTPRINT DETAILS
Ambient Temperature
Single Output
view,grid:2.54mm(0.1inch)
Pin
Min
1
2
5
7
0.2
See tolerance envelope graph
1
2
Function
GND
Typ
150
+Vo
Vin
8.3
6.8
6.3
10
45
50
0V
5
7
(
C
Max
±1.2
0.03
250
15
15
15
15
)
2
mVp-p
Units
%/°C
KHz
W
%
%
FB_S-2W
Recommended testing and application circuit
It’s
capacitor in the application field with less than 0.5
watt output.
Output Voltage Regulation and Over-voltage
Protection Circuit
Overload Protection
ripple,
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).
regulation,
protection is a linear voltage regulator with
overheat protection that is connected to the input
or output end in series (Figure 2).
circuit of these products has no 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.
If you want to further decrease the input/output
It should also be noted that the inductance and
The
GND
Under normal operating conditions, the output
S ingle O u tpu t
V i n
(VDC)
Single Output
GND
Vin
not recommend to connect any external
EXTERNAL CAPACITOR TABLE (Table 1)
Vin
12
24
5
-
an
Cin
simplest
R EG
“LC”
over-voltage
L
(uF)
Cin
4.7
2.2
10
DC DC
-
A/1-2008
device
(Figure 1)
filtering
(Figure 2)
DC
Single Vout
DC
(VDC)
for
12
15
5
9
network may
and
REG
L
output
Page 2 of 2
Cout
over-current
Cout
(uF)
4.7
2.2
10
+Vout
0V
1
voltage
+Vo
0V
be