OUTPUT SPECIFICATIONS
Item
Output power
Line regulation
Test conditions
Min
0.1
For Vin change of
±1%
(5V output)
(9V output)
Load regulation
10% to 100% load
(12V output)
(15V output)
Output voltage accuracy
Temperature drift
100% full load
Ripple & Noise*
20MHz Bandwidth
Switching frequency Full load, nominal input
Max
Units
1
W
±1.2
%
10
15
8.3
15
%
6.8
15
6.3
15
See tolerance envelope graph
0.03
%/
°
C
150
200
mVp-p
50
KHz
Typ
Recommended testing and application circuit
If you want to further decrease the
input/output ripple, an
“LC”
filtering network may
be connected to the input and output ends of the
DC/DC converter, see (Figure 1).
Single Output
L
L
Vin
Cin
+Vo
DC DC
Cout
GND
0V
*Test ripple and noise by
“parallel
cable” method. See detailed operation instructions at Testing of
Power Converter section, application notes.
TYPICAL CHARACTERISTICS
(Figure 1)
It should also be noted that the inductance and
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).
EXTERNAL CAPACITOR TABLE (Table 1)
Vin
Dual
Cou
Cin
Single Cout
(VDC)
(uF)
Vout
Vout
(uF)
(uF)
(VDC)
(VDC)
5
4.7
5
10
4.7
±
5
12
24
2.2
1
9
12
4.7
2.2
-
-
15
1
1
It’s not recommend to connect any external
capacitor in the application field with less than 0.5
watt output.
±
9
±
12
±
15
2.2
1
Ambient Temperature
( C )
OUTLINE DIMENSIONS & PIN CONNECTIONS
First Angle Projection
( 0.070 )
23.80
( 0.937 )
RE COMMEN DED FOOTPRINT
Top
view,grid:2.54mm(0.1inch),
diameter:1.00mm
Output Voltage Regulation and Over-voltage
Protection Circuit
The simplest device for output voltage
regulation,
over-voltage
and
over-current
protection is a linear voltage regulator with
overheat protection that is connected to the input
or output end in series (Figure 2).
S ingle Output
Vn
i
GND
R EG
REG
+Vout
DC DC
0V
13.70
( 0.539 )
( 0.400 )
1
8
Single Output
16
10 9
Bottom view
16
10 9
(Figure 2)
1
7 8
3.01
( 0.119 )
15.24
( 0.600 )
FOOTPRINT DETAILS
(0.300)
Overload Protection
Under normal operating conditions, the output
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.
PIN
7
8
2.54
( 0.100 )
( 0.157 )
Function
GND
NC
NC
+Vo
0V
Vin
7.62
Note:
Unit: mm(inch)
Pin diameter:0.50mm(0.020inch)
Pin tolernces:
+
0.05mm(
+
0.002inch)
General tolerances:
+
0.25mm (
+
0.010inch)
4.00
10
16
NC: no connection
APPLICATION NOTE
Requirement on output load
To ensure this module can operate efficiently and 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.
MORNSUN reserves the copyright
Specifications subject to change without notice.
FB_N-1W
A/0-2007
Page 2 of 2
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