PDF version

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
Input
Volt.
Range
(V DC)
Outp.
Volt.
(V DC)
Max.
Output
Power
*
(W)
EFF.
Full
Load
Typical
**
(%)
Max.
Load
Regulation
(%)**
Max.
Line
Regulation
At Full Load
(%)
Output
Voltage
Ripple
(Full
Load)
1-1MHz
BW
(MV P-P)
Outp.
Volt.
Toler.
**
(± %)
Series LFC Single
(-40º C to +85º C)
Series LMC Single
(-55º C to +85º C)
10-50%
50-100%
100-150V
150-180V
Pico
Part
Number
Price
(US $)
Pico
Part
Number
Price
(US $)
100-180
3.3
30
74
1.25
1.25
0.75
0.75
50
2.0
LFC3.3S
357.41
LMC3.3S
487.38
100-180
5
50
81
1.00
1.00
0.75
0.75
50
1.5
LFC5S
357.41
LMC5S
487.38
100-180
5.2
50
81
1.00
1.00
0.75
0.75
50
1.5
LFC5.2S
357.41
LMC5.2S
487.38
100-180
9
65
84
0.75
0.75
0.5
0.5
50
1.0
LFC9S
357.41
LMC9S
487.38
100-180
12
75
85
0.75
0.75
0.5
0.5
50
1.0
LFC12S
357.41
LMC12S
487.38
100-180
15
75
86
0.75
0.75
0.5
0.5
50
1.0
LFC15S
357.41
LMC15S
487.38
100-180
24
75
87
0.5
0.5
0.5
0.5
50
0.5
LFC24S
357.41
LMC24S
487.38
100-180
28
75
87
0.5
0.5
0.3
0.3
50
0.5
LFC28S
357.41
LMC28S
487.38
100-180
48
75
85
0.5
0.5
0.3
0.3
50
0.5
LFC48S
357.41
LMC48S
487.38
100-180
100
75
85
0.5
0.5
0.3
0.3
100
0.5
LFC100S
536.12
LMC100S
731.08
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
Input
Volt.
Range
(V DC)
Outp.
Volt.
(V DC)
Max.
Output
Power
*
(W)
EFF.
Full
Load
Typical
**
(%)
Max.
Load
Regulation
(%)**
Max.
Line
Regulation
At Full Load
(%)
Output
Voltage
Ripple
(Full
Load)
1-1MHz
BW
(MV P-P)
Outp.
Volt.
Toler.
**
(± %)
Series LFC Dual
(-40º C to +85º C)
Series LMC Dual
(-55º C to +85º C)
10-50%
50-100%
100-150V
150-180V
Pico
Part
Number
Price
(US $)
Pico
Part
Number
Price
(US $)
100-180
5
50
81
1.0
1.0
0.75
0.75
50
1.5
LFC5D
482.09
LMC5D
657.40
100-180
9
65
84
1.0
1.0
0.75
0.75
50
1.0
LFC9D
 482.09
LMC9D
657.40
100-180
12
75
85
0.75
0.75
0.5
0.5
50
1.0
LFC12D
482.09
LMC12D
657.40
100-180
15
75
86
0.75
0.75
0.5
0.5
50
1.0
LFC15D
482.09
LMC15D
657.40
100-180
24
75
87
0.5
0.5
0.5
0.5
50
0.5
LFC24D
482.09
LMC24D
657.40
100-180
28
75
87
0.5
0.5
0.5
0.5
50
0.5
LFC28D
482.09
LMC28D
657.40
100-180
48
75
85
0.5
0.5
0.5
0.5
50
0.5
LFC48D
482.09
LMC48D
657.40
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
INPUT
VOLTAGE
RANGE
(VDC)
OUTPUT
VOLTAGE
(VDC)
MAX.
OUTPUT
POWER
(W)*
EFF.
@
FULL
LOAD
TYP.
(%)**
MAX. LOAD
REGULATION
(%)**
MAX. LINE
REGULATION
AT FULL LOAD
(%)
OUTPUT
VOLTAGE
RIPPLE
FULL LOAD
1-1 MHz
BW
(%)
OUTPUT
VOLTAGE
Tolerance
(±%)**
SERIES LFC SINGLE
(-40ºC to +85ºC)
SERIES LMC SINGLE
(-55ºC to +85ºC)
20-50%
50-100%
100-150V
150-180V
PICO
PART
NUMBER
PRICE
(US $)
PICO
PART
NUMBER
PRICE
(US $)
100-180
125
50
85
0.5
0.5
0.3
0.3
1
0.5
LFC125S
536.12
LMC125S
731.08
100-180
150
50
85
0.5
0.5
0.3
0.3
1
0.5
LFC150S
563.12
LMC150S
731.08
100-180
175
50
85
0.5
0.5
0.3
0.3
1
0.5
LFC175S
563.12
LMC175S
731.08
100-180
200
50
85
0.5
0.5
0.3
0.3
1
0.5
LFC200S
714.83
LMC200S
974.77
100-180
225
50
85
0.5
0.5
0.3
0.3
1
0.5
LFC225S
714.83
LMC225S
974.77
100-180
250
50
85
0.5
0.5
0.3
0.3
1
0.5
LFC250S
714.83
LMC250S
974.77
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

 


Larger Version of Graph

 

For immediate engineering assistance or to place an order: Call Toll Free: 800-431-1064

PICO Electronics, Inc.

143 Sparks Ave. Pelham, NY 10803
Tel: 914-738-1400 Fax: 914-738-8225