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LF124D Folha de dados(PDF) 2 Page - MicroPower Direct, LLC

Nome de Peças LF124D
Descrição Electrónicos  Ultra-Miniature, 1W Dual Output SMT DC/DC Converters
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Fabricante Electrônico  MPD [MicroPower Direct, LLC]
Página de início  http://www.micropowerdirect.com
Logo MPD - MicroPower Direct, LLC

LF124D Folha de dados(HTML) 2 Page - MicroPower Direct, LLC

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Model Selection Guide
Notes:
1. Load regulation is measured for an output change of 20% to 100%.
2. When measuring output ripple, it is recommended that an external
0.33 μF ceramic capacitor be placed from each output to common. For
noise sensitive applications, the use of 0.47 μF capacitors will reduce
the output ripple.
3. Operation at no-load will not damage these units. However, they may
not meet all specifications.
4. The converter should be connected to a low ac-impedance source. An
input source with a highly inductive impedance may affect the stability
of the converter. In applications where the converter output loading is
high and input power is supplied over long lines, it may be necessary
to use a capacitor on the input to insure start-up.
In this case, it is recommended that a low ESR (ESR <1.0
Ω at 100 kHz)
capacitor be mounted close to the converter. For 5V input units a 2.2 μF
is recommended, for 12V input units, a 1.0 μF, and for 24V input units,
a 0.47 μF.
5. The outputs of these units may be connected to provide a 10 VDC, 18
VDC, 24 VDC or 30 VDC output. To do this, connect the load across
the positive (+Vout) and negative (-Vout) outputs and float the ouput
common.
6. It is recommended that a fuse be used on the input of a power supply
for protection. See the table above for the correct rating.
Pin Connections
μF Max
33
Capacitive Load
Model
Number
Input
Output
Load
Regulation
(%, Max)
Efficiency
(%, Typ)
Fuse Rating
Slow-Blow
(mA)
Voltage (VDC)
Current (mA)
Voltage
(VDC)
Current
(mA, Max)
Current
(mA, Min)
Nominal
Range
Full-Load
No-Load
LF101D
5
4.5 - 5.5
267
30
±5.0
±100.0
±2.0
10
75
500
LF102D
5
4.5 - 5.5
260
30
±9.0
±55.0
±1.0
10
76
500
LF103D
5
4.5 - 5.5
255
30
±12.0
±42.0
±0.8
8
79
500
LF104D
5
4.5 - 5.5
251
30
±15.0
±33.0
±0.7
7
79
500
LF111D
12
10.8 - 13.2
111
15
±5.0
±100.0
±2.0
8
75
200
LF112D
12
10.8 - 13.2
109
15
±9.0
±55.0
±1.0
8
76
200
LF113D
12
10.8 - 13.2
105
15
±12.0
±42.0
±0.8
5
80
200
LF114D
12
10.8 - 13.2
103
15
±15.0
±33.0
±0.7
5
80
200
LF121D
24
21.6 - 26.4
56
9
±5.0
±100.0
±2.0
8
74
100
LF122D
24
21.6 - 26.4
55
9
±9.0
±55.0
±1.0
8
75
100
LF123D
24
21.6 - 26.4
53
9
±12.0
±42.0
±0.8
5
79
100
LF124D
24
21.6 - 26.4
52
9
±15.0
±33.0
±0.7
5
79
100
Pin
Description
Pin
Description
1-Vin
6
NA
2
+Vin
7
+Vout
3NA
8
NA
4
Common
9
NA
5
-Vout
10
NA
MicroPower Direct
www.micropowerdirect.com
Board Layout
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