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Military DC-DC Converters
Series FB/MB Single and Series FB/MB Dual
Isolated Regulated 100 Watts, Wide Input Range/36-72 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
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
50 Standard Models
For all variations, call factory.
For Parallel Operation: Add suffix "P" (i.e. FB/MB5SP).
Consult factory to optimize for your application
Series FB : (-40º C to +85º C Operating Temperature)
Series MB : (-55º C to +85º C Operating Temperature)
Surge
Vibration
Humidity
Shock
Altitude
Meets MIL STD 704
Meets MIL STD 202 Method 204 Cond. D
Meets MIL STD 202 Method 106
Meets MIL STD 202 Method 213 Cond. I
Meets MIL STD 202 Method 105 Cond. D
Selected MIL STD 883 Options also Available
Stabilization
Bake
Burn In
Temperature
Cycle
MIL STD 883 Method 1008 24 Hrs
TA=125º C
MIL STD 883 Method 1015 160 Hrs at 90º
C, case
MIL STD 883, -55ºC to +105ºC,Method
1010 Cond. B
The PICO FB and MB Series of high power DC-DC
Converters, allow a wide input voltage of 36-72 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 operation 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 FB/MB Single * 100 Watts * Input 36-72 VDC
Max.
Output
Max.
Line
Series FB
Voltage
EFF.
Load
Regulation Ripple Outp.
Single
Input
Max.
Outp.
Full
Regulation
At Full
Volt.
Output
(Full
Volt. (-40º C to +85º
Volt.
Load
(%)**
Load
C)
Range
Power
Load) Toler.
(V
Typical
(%)
(V
*
1-1MHz
**
Series MB
Single
(-55º C to +85º
C)
(V
DC)
(V
DC)
*
(W)
Typical
**
(%)
(%)
10-
50-
36-
50% 100% 48V
1.50
1.00
1.00
1.00
0.75
0.75
0.50
0.50
0.50
0.50
1.50
1.00
1.00
1.00
0.75
0.75
0.50
0.50
0.50
0.50
0.75
0.75
0.75
0.75
0.50
0.50
0.50
0.50
0.50
0.50
48-
72V
0.75
0.75
0.75
0.75
0.50
0.50
0.50
0.50
0.50
0.50
1-1MHz
BW
(MV P-
P)
50
50
50
50
50
50
50
50
50
50
**
(±%)
Pico
Price
Pico
Price
Part
(US
Part
(US
Number
$)
Number
$)
FB3.3S
FB5S
FB5.2S
FB9S
FB12S
FB15S
FB24S
FB28S
FB48S
FB100S
261.95
261.95
261.95
261.95
261.95
261.95
261.95
261.95
261.95
392.93
MB3.3S
MB5S
MB5.2S
MB9S
MB12S
MB15S
MB24S
MB28S
MB48S
MB100S
367.22
367.22
367.22
367.22
367.22
367.22
367.22
367.22
367.22
550.84
36-72
36-72
36-72
36-72
36-72
36-72
36-72
36-72
36-72
36-72
3.3
5
5.2
9
12
15
24
28
48
100
50
75
75
100
100
100
100
100
100
100
76
78
78
82
84
85
87
87
88
87
2.0
1.5
1.5
1.0
1.0
1.0
0.5
0.5
0.5
0.5
10% Minimum load required at all times.
* Using proper thermal management, maximum temp. of +85º C (case)
** Reading taken at nominal 48 VDC input
Series FB/MB Dual * 100 Watts * Input 36-72 VDC
Max.
Max.
Line
EFF.
Load
Regulation
Input
Max.
Outp.
Full
Regulation
At Full
Volt.
Output
Volt.
Load
(%)**
Load
Range
Power
(V
Typical
(%)
(V
*
DC)
**
DC)
(W)
(%)
10-
50-
36-
48-
50% 100% 48V
36-72
36-72
36-72
36-72
36-72
36-72
36-72
5
9
12
15
24
28
48
37.5/37.5
50/50
50/50
50/50
50/50
50/50
50/50
78
82
84
85
87
87
88
1.00
1.00
0.75
0.75
0.50
0.50
0.50
1.00
1.00
0.75
0.75
0.50
0.50
0.50
0.75
0.75
0.50
0.50
0.50
0.50
0.50
Output
Series MB
Voltage
Series FB Dual
Dual
Ripple Outp. (-40º C to +85º
(-55º C to +85º
(Full
Volt.
C)
C)
Load) Toler.
1-1MHz
**
BW
(± %)
Pico
Price
Pico
Price
(MV P-
Part
(US
Part
(US
72V
P)
Number
$)
Number
$)
0.75
0.75
0.50
0.50
0.50
0.50
0.50
50
50
50
50
50
50
50
1.5
1.0
1.0
1.0
0.5
0.5
0.5
FB5D
FB9D
FB12D
FB15D
FB24D
FB28D
FB48D
375.30
375.30
375.30
375.30
375.30
375.30
375.30
MB5D
MB9D
MB12D
MB15D
MB24D
MB28D
MB48D
526.12
526.12
526.12
526.12
526.12
526.12
526.12
10% Minimum load required at all times.
* Using proper thermal management, maximum temp. of +85º C (case)
** Reading taken at nominal 48 VDC input
****HIGH VOLTAGE SERIES FB/MB
TO 300 VDC - 100 WATTS - INPUT 36-72 VDC
MAX. LINE
OUTPUT
MAX. LOAD REGULATION VOLTAGE
SERIES FB
SERIES MB
EFF.
REGULATION
AT FULL
SINGLE
SINGLE
MAX.
@
RIPPLE
OUTPUT
INPUT
OUTPUT
(%)**
LOAD
(-55ºC to +85ºC)
OUTPUT FULL
FULL
VOLTAGE (-40ºC to +85ºC)
VOLTAGE VOLTAGE
(%)
POWER LOAD
LOAD
Tolerance
(VDC)
(VDC)
(W)*
TYP.
1-1MHz
(±%)*
PICO
PICO
20-
50-
36-
48-
PRICE
PRICE
(%)**
BW
PART
PART
50% 100%
48V
72V
(US $)
(US $)
(%)
NUMBER
NUMBER
36-72
36-72
36-72
125
150
175
100
100
100
85
85
85
0.5
0.5
0.5
0.5
0.5
0.5
0.3
0.3
0.3
0.3
0.3
0.3
1
1
1
0.5
0.5
0.5
FB125S
FB150S
FB175S
382.21
382.21
382.21
MB125S
MB150S
MB175S
550.84
550.84
550.84
36-72
36-72
36-72
36-72
36-72
36-72
175
200
225
250
275
300
100
100
100
100
100
100
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
FB175S
FB200S
FB225S
FB250S
FB275S
FB300S
382.21
509.62
509.62
509.62
509.62
637.02
MB175S
MB200S
MB225S
MB250S
MB275S
MB300S
550.84
734.45
734.45
734.45
734.45
918.06
10% Minimum load required at all times
*Using proper thermal management maximum temp of +85ºC (case)
**Reading taken at nominal 48 VDC input
****UL approval recognition pending
VIEW HEAT SINKS
GO TO APPLICATION NOTES
GO TO MECHANICAL CONFIGURATIONS
(http://www.picoelectronics.com/node/13349) (http://www.picoelectronics.com/node/13343) (http://www.picoelectronics.com/node/13344)
Larger Version of Graph
(http://www.picoelectronics.com/sites/all/staticpage_images/pe119gb.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
FPGA/CPLD
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