Model Selection Guide
Model
Number
LF101ES
LF102ES
LF103ES
LF104ES
LF109ES
LF111ES
LF112ES
LF113ES
LF114ES
LF151ES
LF152ES
LF153ES
LF159ES
Input
Voltage (VDC)
Nominal
Range
5
4.5 - 5.5
5
4.5 - 5.5
5
4.5 - 5.5
5
4.5 - 5.5
5
4.5 - 5.5
12
10.8 - 13.2
12
10.8 - 13.2
12
10.8 - 13.2
12
10.8 - 13.2
3.3
3.0 - 3.6
3.3
3.0 - 3.6
3.3
3.0 - 3.6
3.3
3.0 - 3.6
Output
Load
Current (mA)
Voltage Current
Current Regulation
Full-Load No-Load (VDC) (mA, Max) (mA, Min) (%, Max)
260
30
5.0
200.0
20.0
15.0
263
30
9.0
111.0
23.0
9.0
253
30
12.0
84.0
17.0
7.5
256
30
15.0
67.0
13.0
7.0
277
30
3.3
300.0
30.0
15.0
121
15
5.0
200.0
20.0
15.0
114
15
9.0
111.0
23.0
9.0
114
15
12.0
84.0
17.0
7.5
113
15
15.0
67.0
13.0
7.0
409
55
5.0
200.0
20.0
15.0
446
55
9.0
111.0
23.0
9.0
433
55
12.0
84.0
17.0
7.5
415
55
3.3
300.0
30.0
15.0
Efficiency
(%, Typ)
77
76
79
78
72
69
73
73
74
74
68
70
73
Fuse Rating
Slow-Blow
(mA)
500
500
500
500
500
200
200
200
200
750
750
750
750
Other input/output combinations are available (i.e. 24 VDC Input).
Contact the factory for details at:
sales@micropowerdirect.com
Notes:
1. Output load regulation is specified for a load change of 10% 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.
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:
Vin
3.3 VDC
5 VDC
12 VDC
Input
Capacitor
4.7
µF
4.7
µF
2.2
µF
Vout
3.3 VDC
5 VDC
9 VDC
12 VDC
15 VDC
Output
Capacitor
10.0
µF
10.0
µF
4.7
µF
2.2
µF
1.0
µF
Derating Curve
Pin Connections
Pin Description
1
-Vin
2
+Vin
3
NC
4
-Vout
NC = No Connection
Pin
5
6
7
8
Description
+Vout
NC
NC
NC
Recommended Solder Profile
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 Model Selection
table above for the correct rating.
Mechanical Dimensions
Board Layout
MicroPower Direct
www.micropowerdirect.com
•
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
292 Page Street Ste D Stoughton, MA 02072
TEL: (781) 344-8226
•
FAX: (781) 344-8481
•
E-Mail: sales@micropowerdirect.com
MPD [ MICROPOWER DIRECT, LLC ]
