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Military DC-DC Converters
Series LFC/LMC Single and Series LFC/LMC Dual
Isolated Regulated 75 Watts, Wide Input Range/100-180 VDC
Fully Regulated, Short Circuit Protected
Parallel Operation Available
Features:
Dual isolated outputs
Short circuit protection
Input voltage protection
Thermal, over temp. shutdown
Line regulation
Load regulation
No external components required
Hi density, hi efficiency design
Remote shutdown
Trim capabilities
Fixed frequency-100 Khtz
46 Standard Models
For all variations, call factory.
For Parallel Operation: Add suffix "P"
(i.e. LFC/LMC5SP). Consult factory to optimize for your application.
Typical Characteristics:
Frequency:
100 Khtz
Base plate:
Max. +85º C
Operating temperature:
See
thermal chart: -40º C to +85º C base
plate, -55º C to +85º C base plate.
Test conditions:
25º C ambient
Isolation Base Input:
2121 VDC
Isolation Input Output:
4242 VDC
Isolation Output to Base:
1000
VDC
Storage temperature:
-55º C to
+105º C
Series LFC : (-40º C to +85º C Operating Temperature)
Series LMC : (-55º C to +85º C Operating Temperature)
Surge:
Meets MIL STD 704
Vibration:
Meets MIL STD 202 Method 204 Cond. D
Humidity:
Meets MIL STD 202 Method 106
Shock:
Meets MIL STD 202 Method 213 Cond. I
Altitude:
Meets MIL STD 202 Method 105 Cond. D
Selected MIL STD 883 Options also Available
Stabilization Bake:
MIL STD 883 Method 1008 24 Hrs TA=125º C
Burn In:
MIL STD 883 Method 1015 160 Hrs at 90º C, case
Temperature Cycle:
MIL STD 883 -55ºC to +105ºC Method 1010 Cond. B
The PICO Series LFC and LMC Series of high power DC-DC Converters, allow a wide input voltage of 100-180
VDC, while maintaining a regulated output. They are fully safeguarded for over voltage, over temperature and
continuous short circuit protection.
The availability of Dual Isolated Outputs, small size, and the capability of parallel operations as standard features
should reduce your design and component costs, while the fixed frequency operation helps parallel connections for
higher power requirements.
This high density unit is assembled in the USA with PICO quality and component selection, allowing it to meet the
most stringent commercial requirements.
Series LFC/LMC Single * 75 Watts * Input 100-180 VDC
Max.
Output
Max.
Line
Series LFC
Series LMC
Voltage
EFF.
Load
Regulation Ripple Outp.
Single
Single
Input
Max.
Outp.
Full
Regulation
At Full
Volt.
Output
(Full
Volt. (-40º C to +85º (-55º C to +85º
Volt.
Load
(%)**
Load
C)
C)
Range
Power
Load) Toler.
(V
Typical
(%)
(V
*
1-1MHz
**
DC)
**
DC)
(W)
BW
(± %)
Pico
Price
Pico
Price
(%)
10-
50- 100- 150- (MV P-
Part
(US
Part
(US
50% 100% 150V 180V
P)
Number
$)
Number
$)
100-
180
100-
180
100-
180
100-
180
100-
180
100-
180
100-
180
100-
180
100-
180
100-
180
3.3
30
74
1.25
1.25
0.75
0.75
50
2.0
LFC3.3S
324.92 LMC3.3S
455.50
5
50
81
1.00
1.00
0.75
0.75
50
1.5
LFC5S
324.92
LMC5S
455.50
5.2
50
81
1.00
1.00
0.75
0.75
50
1.5
LFC5.2S
324.92 LMC5.2S
455.50
9
65
84
0.75
0.75
0.5
0.5
50
1.0
LFC9S
324.92
LMC9S
455.50
12
75
85
0.75
0.75
0.5
0.5
50
1.0
LFC12S
324.92
LMC12S
455.50
15
75
86
0.75
0.75
0.5
0.5
50
1.0
LFC15S
324.92
LMC15S
455.50
24
75
87
0.5
0.5
0.5
0.5
50
0.5
LFC24S
324.92
LMC24S
455.50
28
75
87
0.5
0.5
0.3
0.3
50
0.5
LFC28S
324.92
LMC28S
455.50
48
75
85
0.5
0.5
0.3
0.3
50
0.5
LFC48S
324.92
LMC48S
455.50
100
75
85
0.5
0.5
0.3
0.3
100
0.5
LFC100S 487.38 LMC100S 683.25
10% Minimum load required at all times.
* Using proper thermal management, maximum temp. of +85º C (case)
** Reading taken at nominal 150 VDC input
Series LFC/LMC Dual * 75 Watts * Input 100-180 VDC
Max.
Output
Max.
Line
Series LFC
Series LMC
Voltage
EFF.
Load
Regulation Ripple Outp.
Dual
Dual
Input
Max.
Outp.
Full
Regulation
At Full
Volt.
Output
(Full
Volt. (-40º C to +85º (-55º C to +85º
Volt.
Load
(%)**
Load
C)
C)
Range
Power
Load) Toler.
(V
Typical
(%)
(V
*
1-1MHz
**
DC)
**
DC)
(W)
BW
(± %)
Pico
Price
Pico
Price
(%)
10-
50- 100- 150- (MV P-
Part
(US
Part
(US
50% 100% 150V 180V
P)
Number
$)
Number
$)
100-
180
100-
180
100-
180
5
50
81
1.0
1.0
0.75
0.75
50
1.5
LFC5D
438.27
LMC5D
614.39
9
65
84
1.0
1.0
0.75
0.75
50
1.0
LFC9D
438.27
LMC9D
614.39
12
75
85
0.75
0.75
0.5
0.5
50
1.0
LFC12D
438.27
LMC12D
614.39
180
100-
180
100-
180
100-
180
100-
180
12
75
85
0.75
0.75
0.5
0.5
50
1.0
LFC12D
438.27
LMC12D
614.39
15
75
86
0.75
0.75
0.5
0.5
50
1.0
LFC15D
438.27
LMC15D
614.39
24
75
87
0.5
0.5
0.5
0.5
50
0.5
LFC24D
438.27
LMC24D
614.39
28
75
87
0.5
0.5
0.5
0.5
50
0.5
LFC28D
438.27
LMC28D
614.39
48
75
85
0.5
0.5
0.5
0.5
50
0.5
LFC48D
438.27
LMC48D
614.39
10% Minimum load required at all times.
* Using proper thermal management, maximum temp. of +85º C (case)
** Reading taken at nominal 150 VDC input
****HIGH VOLTAGE SERIES LFC/LMC
TO 250 VDC - 50 WATTS - INPUT 100-180 VDC
MAX. LINE
OUTPUT
MAX. LOAD REGULATION VOLTAGE
SERIES LFC
SERIES LMC
EFF.
REGULATION
AT FULL
SINGLE
SINGLE
INPUT
MAX.
@
RIPPLE
OUTPUT
OUTPUT
(%)**
LOAD
(-55ºC to +85ºC)
VOLTAGE
OUTPUT FULL
FULL
VOLTAGE (-40ºC to +85ºC)
VOLTAGE
(%)
RANGE
POWER LOAD
LOAD
Tolerance
(VDC)
(VDC)
(W)*
TYP.
1-1 MHz
(±%)**
PICO
PICO
20-
50-
100-
150-
PRICE
PRICE
(%)**
BW
PART
PART
50% 100% 150V 180V
(US $)
(US $)
(%)
NUMBER
NUMBER
100-180
100-180
100-180
100-180
100-180
100-180
125
150
175
200
225
250
50
50
50
50
50
50
85
85
85
85
85
85
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
1
1
1
1
1
1
0.5
0.5
0.5
0.5
0.5
0.5
LFC125S
LFC150S
LFC175S
LFC200S
LFC225S
LFC250S
487.38
487.38
487.38
649.85
649.85
649.85
LMC125S
LMC150S
LMC175S
LMC200S
LMC225S
LMC250S
683.25
683.25
683.25
911.00
911.00
911.00
10% Minimum load required at all times
*Using proper thermal management maximum temp of +85ºC (case)
**Reading taken at nominal 150 VDC input ****UL approbal recognition pending
VIEW HEAT SINKS
(http://www.picoelectronics.com/node/13342)
GO TO APPLICATION NOTES
GO TO MECHANICAL CONFIGURATION
(http://www.picoelectronics.com/node/13343) (http://www.picoelectronics.com/node/13347)
Larger Version of Graph
(http://www.picoelectronics.com/sites/all/staticpage_images/pe116gb.jpg)
For immediate engineering assistance or to place an order:
Call Toll Free: 800-431-1064
PICO Electronics, Inc.
143 Sparks Ave. Pelham, NY 10803-1810
Tel: 914-738-1400 Fax: 914-738-8225
京公网安备 11010802033920号
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