TYPICAL CHARACTERISTICS
EXTERNAL CAPACITOR TABLE (TABLE 1)
Vin(VDC) Cin(uF) Vout(VDC) Cout(uF)
5
4.7
2.2
1
5
-
1
-
12
24
-
-
It’s not recommended to connect any external capacitor
in the application field with less than 0.5 watt output.
Output Voltage Regulation and Over-voltage
Protection Circuit
The simplest device for output voltage
(
C)
Ambient Temperature
regulation,
over-voltage
and
over-current
protection is
a
linear voltage regulator with
OUTLINE DIMENSIONS & PIN CONNECTIONS
overheat protection that is connected to the input
or output end in series (Figure 2).
First Angle Projection
RECOMMENDED FOOTPRINT
Top view,grid:2.54*2.54mm(0.1*0.1inch),
diameter:1.00mm(.039inch)
+Vo1
0V1
Vin
REG
+Vo2
0V2
+Vo3
1
4 5 6 7
1110 9 8
DC DC
14
1
1110 9 8
4 5 6 7
14
0V3
+Vo4
0V4
GND
+Vo1
REG
REG
FOOTPRINT DETAILS
0V1
+Vo2
0V2
Vin
Pin
Function
(Side View)
1
4
GND
0V3
DC
DC
REG
REG
+Vo3
0V3
5
6
+Vo3
0V4
GND
+Vo4
0V4
7
8
9
+Vo4
+Vo2
0V2
(Figure 2)
Overload Protection
Note:
Unit:mm(inch)
Pin section:0.50*0.30mm(0.020*0.012inch)
Pin section tolerances: 0.10mm( 0.004inch)
General tolerances: 0.25mm( 0.010inch)
10
11
14
+Vo1
0V1
+Vin
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.
APPLICATION NOTE
Recommended circuit
If you want to further decrease the input/output ripple, an “LC” filtering network may be
Requirement on output load
connected to the input and output ends of the DC/DC converter, see (Figure 1).
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
L
+Vo1
C
L
0V1
L
Vin
+Vo2
C
C
C
0V2
+Vo3
0V3
+Vo4
0V4
L
L
C
DC DC
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.
GND
( Figure 1)
No parallel connection or plug and play.
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).
MORNSUN reserves the copyright
Specifications subject to change without notice.
J_N-1W
A/1-2008
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