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LF105S 데이터시트(PDF) 2 Page - MicroPower Direct, LLC

부품명 LF105S
상세설명  Ultra-Miniature, 1W Single Output SMT DC/DC Converters
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제조업체  MPD [MicroPower Direct, LLC]
홈페이지  http://www.micropowerdirect.com
Logo MPD - MicroPower Direct, LLC

LF105S 데이터시트(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 the +Vout
pin to the -Vout pin. 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 sup-
plied 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. 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.
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
LF101S
5
4.5 - 5.5
250
30
5.0
200.0
4.0
10
80
500
LF102S
5
4.5 - 5.5
254
30
9.0
110.0
2.0
10
78
500
LF103S
5
4.5 - 5.5
252
30
12.0
84.0
1.5
8
80
500
LF104S
5
4.5 - 5.5
248
30
15.0
67.0
1.0
7
81
500
LF105S
5
4.5 - 5.5
264
30
3.3
300.0
60.0
10
75
500
LF111S
12
10.8 - 13.2
103
15
5.0
200.0
4.0
8
81
200
LF112S
12
10.8 - 13.2
106
15
9.0
110.0
2.0
8
78
200
LF113S
12
10.8 - 13.2
104
15
12.0
84.0
1.5
5
81
200
LF114S
12
10.8 - 13.2
102
15
15.0
67.0
1.0
5
82
200
LF115S
12
10.8 - 13.2
110
15
3.3
300.0
60.0
8
75
200
LF121S
24
21.6 - 26.4
53
8
5.0
200.0
4.0
8
79
100
LF122S
24
21.6 - 26.4
54
8
9.0
110.0
2.0
8
77
100
LF123S
24
21.6 - 26.4
52
8
12.0
84.0
1.5
5
80
100
LF124S
24
21.6 - 26.4
52
8
15.0
67.0
1.0
5
80
100
LF125S
24
21.6 - 26.4
57
8
3.3
300.0
60.0
8
73
100
Pin
Description
Pin
Description
1
-Vin
5
+Vout
2+Vin
6
NA
3NA
7
NA
4
-Vout
8
NA
Pin Connections
μF Max
33
Capacitive Load
Board Layout
Derating Curve
MicroPower Direct
www.micropowerdirect.com


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