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LF306RW Arkusz danych(PDF) 2 Page - MicroPower Direct, LLC

Numer części LF306RW
Szczegółowy opis  Wide Input, 3W SMT Single & Dual Output DC/DC Converters
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Producent  MPD [MicroPower Direct, LLC]
Strona internetowa  http://www.micropowerdirect.com
Logo MPD - MicroPower Direct, LLC

LF306RW Arkusz danych(HTML) 2 Page - MicroPower Direct, LLC

  LF306RW Datasheet HTML 1Page - MicroPower Direct, LLC LF306RW Datasheet HTML 2Page - MicroPower Direct, LLC  
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Model Selection Guide
Mechanical Dimensions
Notes:
All dimensions are typical in inches (mm)
Tolerance x.xx =
±0.01 (±0.25)
Pin 1 is marked by a “dot” or indentation on the unit
Pin Connections
Board Layout
Notes:
1. When measuring output ripple, it is recommended that an external 0.47 μF ceramic
capacitor be placed from the +Vout pin to the -Vout pin for single output units and
from each output to common for dual output units. For noise sensitive applications,
the use of 3.3 μF capacitors will reduce the output ripple.
2. Transient recovery is measured to within a 1% error band for a load step change
of 75% to 100%.
3. Operation at no-load will not damage these units. However, they may not meet all
specifications.
4. Dual output units may be connected to provide a 24 VDC or 30 VDC output. To do
this, connect the load across the positive (+Vout) and negative (-Vout) outputs and
float the output common.
5. 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 ap-
plications 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 <1.0Ω at 100 kHz) capacitor be
mounted close to the converter. For 12V input units a 3.3 μF is recommended, and
for 24V & 48V units a 1.5 μF.
6. It is recommended that a fuse be used on the input of a power supply for protec-
tion. See the table above for the correct rating.
MicroPower Direct
www.micropowerdirect.com
292 Page Street Ste D Stoughton, MA 02072
TEL: (781) 344-8226
FAX: (781) 344-8481
E-Mail: sales@micropowerdirect.com
Derating Curve
Single Output
μF Max
Dual Output
μF Max
4,700
±180
Capacitive Load
Model
Number
Input
Output
Efficiency
(%, Typ)
Fuse Rating
Slow-Blow
(mA)
Voltage (VDC)
Current (mA)
Reflected
Ripple
(mA, Typ)
Voltage
(VDC)
Current
(mA, Max)
Current
(mA, Min)
Nominal
Range
Full-Load
No-Load
LF301RW
12
9.0 - 18.0
257
20
25
3.3
700.0
70.0
75
750
LF302RW
12
9.0 - 18.0
316
20
25
5.0
600.0
60.0
79
750
LF303RW
12
9.0 - 18.0
305
20
25
12.0
250.0
25.0
82
750
LF304RW
12
9.0 - 18.0
305
20
25
15.0
200.0
20.0
82
750
LF305RW
12
9.0 - 18.0
321
20
25
±5.0
±300.0
±30.0
78
750
LF306RW
12
9.0 - 18.0
309
20
25
±12.0
±125.0
±12.5
81
750
LF307RW
12
9.0 - 18.0
309
20
25
±15.0
±100.0
±10.0
81
750
LF311RW
24
18.0 - 36.0
127
5
15
3.3
700.0
70.0
76
350
LF312RW
24
18.0 - 36.0
156
5
15
5.0
600.0
60.0
80
350
LF313RW
24
18.0 - 36.0
151
5
15
12.0
250.0
25.0
83
350
LF314RW
24
18.0 - 36.0
151
5
15
15.0
200.0
20.0
83
350
LF315RW
24
18.0 - 36.0
158
5
15
±5.0
±300.0
±30.0
79
350
LF316RW
24
18.0 - 36.0
152
5
15
±12.0
±125.0
±12.5
82
350
LF317RW
24
18.0 - 36.0
152
5
15
±15.0
±100.0
±10.0
82
350
LF321RW
48
36.0 - 75.0
63
3
10
3.3
700.0
70.0
76
200
LF322RW
48
36.0 - 75.0
78
3
10
5.0
600.0
60.0
80
200
LF323RW
48
36.0 - 75.0
75
3
10
12.0
250.0
25.0
83
200
LF324RW
48
36.0 - 75.0
75
3
10
15.0
200.0
20.0
83
200
LF325RW
48
36.0 - 75.0
79
3
10
±5.0
±300.0
±30.0
79
200
LF326RW
48
36.0 - 75.0
79
3
10
±12.0
±125.0
±12.5
82
200
LF327RW
48
36.0 - 75.0
76
3
10
±15.0
±100.0
±10.0
82
200
Pin
Single
Dual
1
-Vin
-Vin
2
-Vin
-Vin
3NC
NC
10
NC
Common
11
NC
NC
12
NC
-Vout
13
+Vout
+Vout
14
NC
NC
15
-Vout
Common
22
NC
NC
23
+Vin
+Vin
24
+Vin
+Vin
NC: No Connection


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