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LF103ESI View Datasheet(PDF) - MicroPower Direct, LLC

Part Name
Description
Manufacturer
LF103ESI Datasheet PDF : 2 Pages
1 2
Model Selection Guide
www.micropowerdirect.com
Model
Number
LF101ESI
LF102ESI
LF103ESI
LF104ESI
LF111ESI
LF112ESI
LF113ESI
LF114ESI
LF151ESI
LF152ESI
LF153ESI
Input
Voltage (VDC)
Current (mA) Voltage
Nominal Range Full-Load No-Load (VDC)
5
4.5 - 5.5
285
30
5.0
5
4.5 - 5.5
266
30
9.0
5
4.5 - 5.5
256
30
12.0
5
4.5 - 5.5
250
30
15.0
12 10.8 - 13.2 116
15
5.0
12 10.8 - 13.2 110
15
9.0
12 10.8 - 13.2 105
15
12.0
12 10.8 - 13.2 103
15
15.0
3.3
3.0 - 3.6
415
55
5.0
3.3
3.0 - 3.6
433
55
9.0
3.3
3.0 - 3.6
433
55
12.0
Output
Current
(mA, Max)
200.0
111.0
84.0
67.0
200.0
111.0
84.0
67.0
200.0
111.0
84.0
Current
(mA, Min)
20.0
23.0
17.0
13.0
20.0
23.0
17.0
13.0
20.0
23.0
17.0
Load
Regulation
(%, Max)
15.0
9.0
7.5
7.0
15.0
9.0
7.5
7.0
15.0
9.0
7.5
Efficiency
(%, Typ)
Fuse Rating
Slow-Blow
(mA)
70
500
75
500
78
500
80
500
72
200
76
200
79
200
81
200
73
750
70
750
70
750
Notes:
1. Output load regulation is specified for a load 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 single output units and from each output to common for dual output units.
3. During operation, care must be taken not to exceed the specified input range of the unit or to allow the output
load to drop below the specified minimum (10% of full load). Operating the unit under either of these conditions
could cause damage to the unit.
4. These converters are specified for operation without external components. However, in some applications the
addition of input/output capacitors will enhance stability and reduce output ripple. Recommended capacitor values
are:
Derating Curve
Vin
3.3 VDC
5 VDC
12 VDC
Input
Capacitor
4.7 µF
4.7 µF
2.2 µF
Vout
5 VDC
9 VDC
12 VDC
15 VDC
Output
Capacitor
4.7 µF
2.2 µF
1.0 µF
0.47 µF
For applications requiring very low output noise levels, a simple LC filter should be effective.
5. It is recommended that a fuse be used on the
input of a power supply for protection. See the
Pin Connections
Model Selection table above for the correct rating.
Pin Description Pin
Description
1
-Vin
7
NC
2
+Vin
8
+Vout
3
NC
10
NC
5
-Vout
11
NC
Mechanical Dimensions
6
NC
12
NC
NC = No Connection
Recommended Solder Profile
Board Layout
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
MicroPower Direct
We Power Your Success - For Less!
292 Page Street Ste D Stoughton, MA 02072 TEL: (781) 344-8226 FAX: (781) 344-8481 E-Mail: sales@micropowerdirect.com
 

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