IB0505LT-W75 Datasheet, PDF (2/2 Pages) MORNSUN Science& Technology Ltd. – SINGLE OUTPUT SMD DC-DC CONVERTER

ISOLATION SPECIFICATIONS
Item
Test condition
Isolation voltage
Tested for 1 minute
Isolation resistance Test at 500VDC
Min Typ
1000
1000
Max Units
VDC
MΩ
OUTPUT SPECIFICATIONS
Item
Test Conditions
Output power
Line regulation
For Vin change of 5%
Load regulation
10% to 100% load
Output voltage accuracy 100% full load
Temperature drift
100% full load
Ripple*
20MHz Bandwidth
Noise*
20MHz Bandwidth
Switching frequency
Full load, nominal input
Min Typ Max Units
0.1
1
W
±0.25
±1
%
±3
0.03 %/°C
10
20
mVp-p
50
75
100
KHz
*Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of
Power Converter section, application notes.
Note:
1. All specifications measured at TA=25°C, humidity<75%, nominal input voltage and rated output load
unless otherwise specified.
2. See below recommended circuits for more details.
TYPICAL TEMPERATURE CURVE
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, or use our
company’s products with a lower rated output
power (IB_LD -W25/IB_LS-W25 series).
Recommended 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).
L
Vin
L
+Vo
Cin
DC DC
Cout
GND
0V
(Figure 1)
Operating Temp.( C )
OUTLINE DIMENSION & PIN CONNECTIONS
IB X XX XL S- 1W
(0.079)
5. 08
(0.200)
Fi rst Angle Projection
IBXXXXL D-1W
1
7
14
11 9
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
Cin
Vout
Cout
(VDC)
(uF)
(VDC)
(uF)
5
4.7
5
10
12
4.7
9
4.7
15
2.2
12
2.2
24
1
15
1
It’s not recommended to connect any external capacitor
in the application field with less than 0.5 watt output.
No parallel connection or plug and play.
(0.020)
RECOMMENDED FOOTPRINT
Top view,grid:2.54*2.54mm(0.1*0.1inch),
diameter:1.00mm(0.039inch)
12 4 6
14 11 9
1
7
FOOTPRINT DETAILS
Pin
SIP
1
Vin
2
GND
4
0V
6
+Vo
Note:
Unit:mm(inch)
Pin section:0.50*0.30mm(0.020*0.012inch)
Pin section tol erances: 0.10mm( 0.004inch)
General tolerances: 0.25mm( 0.010inch)
FOOTPRINT DETAILS
Pin
DIP
1
GND
7
NC
9
+Vo
11
0V
14
Vin
NC:No Connection
MORNSUN reserves the copyright
Specifications subject to change without notice. IB_LD-1W & IB_LS-1W A/2-2008
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