Pico Electronics: SERIES LR MILITARY DC-DC CONVERTERS
Page 1 of 3
SERIES LR
DC-DC CONVERTERS
Wide Input Range/up to 3.33:1
Isolated Regulated up to 5 Watt
DC-DC Converters
Fully Regulated
All Units Shielded
This series of high efficiency, wide input range, encapsulated regulators come in 90 different
FEATURES
models. These units feature a 500 VOLT DC input to output isolation in both single and dual output
models. The LR Series will operate over a temperature range of -25º C to +70º C with no heat sink
Voltage regulation over input range of
or electrical derating. These units are excellent for applications where input voltage varies
dramatically, yet a high efficiency and output voltage regulation must be maintained.
Unit
TYPICAL CHARACTERISTICS:
Test conditions:
25º C ambient.
Operating temperature:
-25º C to +70º C ambient.
Output voltage tolerance:
±1% at typical input voltage
Output voltage temperature coefficient:
0.02%/ºC
Storage temperature:
-55º C to +125º C
Short circuit protection:
Temporary
Operating frequency:
40 KHz, typ.
OPTIONS AVAILABLE
Per Mil. Std. 883
Expanded operating temp. (-55º C to +85º C)
Stabilization Bake (125º C ambient)
Temperature Cycle (-55º C to +125º C)
Hi Temp, full power burn in (100% power, 125º C case temp)
LRE
LRF
LRA
LRB
LRC
Low
5V
8V
18V
36V
18V
High
15V
24V
36V
60V
60V
Encapsulated semiconductors, conservatively rated for maximum reliability.
Load regulation (see table for typical variation at different loads)
Line regulation = Typical values
5-15V DC = ±1.5%
8-24V DC = ±1.5%
18-36V DC = ±1.0%
36-60V DC = ±1.0%
18-60V DC = ±1.5%
High efficiency - up to 80%
Will operate over a temperature range of -25º C to +70º C with no heat sink or electrical derating
6 sided shielding
Isolation - 100 megohms at 500 volts DC
External output trimming pin standard, +5%
Single and dual isolated outputs
Each unit is supplied with an external control pin. This "C" pin, when connected to the negative (-) input,
will disable the unit, allowing for remote shutdown.
SERIES LR - SINGLE OUTPUT
PICO
Part
Number
LRE2S
LRE3.3S
LRE5S
LRE5.2S
LRE9S
LRE12S
LRE15S
LRE24S
LRE28S
LRE48S
LRE100S
LRF2S
LRF3.3S
LRF5S
LRF5.2S
LRF9S
LRF12S
LRF15S
LRF24S
RF28S
LRF48S
LRF100S
LRA2S
LRA3.3S
LRA5S
LRA5.2S
LRA9S
LRA12S
LRA15S
LRA24S
LRA28S
LRA48S
LRA100S
LRB2S
LRB3.3S
LRB5S
LRB5.2S
LRB9S
LRB12S
LRB15S
LRB24S
LRB28S
LRB48S
LRB100S
LRC2S
LRC3.3S
LRC5S
LRC5.2S
LRC9S
LRC12S
LRC15S
LRC24S
LRC28S
LRC48S
Input
Volt.
Range
5-15
5-15
5-15
5-15
5-15
5-15
5-15
5-15
5-15
5-15
5-15
8-24
8-24
8-24
8-24
8-24
8-24
8-24
8-24
8-24
8-24
8-24
18-36
18-36
18-36
18-36
18-36
18-36
18-36
18-36
18-36
18-36
18-36
36-60
36-60
36-60
36-60
36-60
36-60
36-60
36-60
36-60
36-60
36-60
18-60
18-60
18-60
18-60
18-60
18-60
18-60
18-60
18-60
18-60
Output
Volt.
DC
2
3.3
5
5.2
9
12
15
24
28
48
100
2
3.3
5
5.2
9
12
15
24
28
48
100
2
3.3
5
5.2
9
12
15
24
28
48
100
2
3.3
5
5.2
9
12
15
24
28
48
100
2
3.3
5
5.2
9
12
15
24
28
48
Max.
Load
Current
(mA)
1000
910
600
576
444
333
267
167
143
83
40
1500
1212
1000
961
556
417
333
208
179
104
50
1500
121
1000
961
556
417
333
208
179
104
50
1500
1212
1000
961
556
417
333
208
179
104
50
1500
1212
1000
961
556
417
333
208
179
104
Max.
Output
Power
(watts)
2
3
3
3
4
4
4
4
4
4
4
3
4
5
5
5
5
5
5
5
5
5
3
4
5
5
5
5
5
5
5
5
5
3
4
5
5
5
5
5
5
5
5
5
3
4
5
5
5
5
5
5
5
5
Eff. @
Full
Load
Typical
(%)*
68
75
78
78
78
79
79
80
80
80
80
69
75
78
78
78
79
79
80
80
80
80
69
76
76
76
76
77
79
80
80
80
80
67
74
74
74
74
74
76
76
76
76
78
67
74
76
76
76
76
77
78
78
78
Input
Current
Full
Load
Typical
(mA)*
294
400
385
385
515
505
505
500
500
500
500
272
333
400
400
400
395
395
390
390
390
390
161
195
245
245
245
240
235
230
230
230
230
93
113
140
140
140
140
135
135
135
135
135
115
139
170
170
170
170
165
165
165
165
Output
Volt.
Ripple@
Full LD.
1-1 MHz BW
mv p-p
150
200
150
150
125
125
125
125
125
175
200
150
200
150
150
125
125
125
125
125
175
200
150
150
100
100
100
100
100
100
100
150
200
150
150
100
100
100
100
100
100
100
150
200
150
150
100
100
100
100
100
100
100
150
Output
Volt.
Tolerance
(± %)*
1.50
1.00
0.75
0.75
0.50
0.50
0.50
0.50
0.50
0.50
0.50
1.50
1.00
0.75
0.75
0.50
0.50
0.50
0.50
0.50
0.50
0.50
1.50
1.00
0.75
0.75
0.50
0.50
0.50
0.50
0.50
0.50
0.50
1.50
1.00
0.75
0.75
0.50
0.50
0.50
0.50
0.50
0.50
0.50
1.50
1.00
0.75
0.75
0.50
0.50
0.50
0.50
0.50
0.50
**
V LD.
Reg.
25%-100%
Load
(± %)*
3.50
3.00
1.50
1.50
1.25
1.25
1.25
1.00
1.00
1.00
1.00
3.50
3.00
1.50
1.50
1.25
1.25
1.25
1.00
1.00
1.00
1.00
4.00
3.00
2.00
2.00
2.00
2.00
1.50
1.50
1.50
1.00
1.00
4.00
3.00
1.25
1.25
1.00
1.00
1.00
0.75
0.75
0.75
1.00
4.00
3.00
2.00
2.00
1.00
1.00
1.00
0.75
0.75
0.75
Line
Regu-
lation
(± %)*
3.50
2.75
2.00
2.00
1.50
1.25
1.25
1.25
1.00
1.00
1.00
3.00
2.75
2.00
2.00
1.50
1.25
1.25
1.25
1.00
1.00
1.00
2.00
1.50
0.75
0.75
0.50
0.50
0.50
0.25
0.25
0.25
0.50
2.00
1.50
0.50
.050
0.25
0.25
0.25
0.25
0.25
0.25
0.50
2.50
1.75
1.25
1.25
0.75
0.75
0.75
0.50
0.50
0.50
Price
125.94
125.94
125.94
125.94
125.94
125.94
125.94
125.94
125.94
125.94
157.43
125.94
125.94
125.94
125.94
125.94
125.94
125.94
125.94
125.94
125.94
157.43
125.94
125.94
125.94
125.94
125.94
125.94
125.94
125.94
125.94
125.94
157.43
148.84
148.84
148.84
148.84
148.84
148.84
148.84
148.84
148.84
148.84
186.05
160.29
160.29
160.29
160.29
160.29
160.29
160.29
160.29
160.29
160.29
http://www.picoelectronics.com/dcdclow/pe82_83.htm?PartNo=LRC100S
3/25/2009
Pico Electronics: SERIES LR MILITARY DC-DC CONVERTERS
Page 2 of 3
LRC100S
18-60
100
* Measurements taken with input voltage set at mid value.
** 10% minimum load required.
50
5
78
165
200
0.50
1.00
0.50
200.63
Series LR - Single Output
Larger Size Schematic
Typical Weight: 65 grams
Larger Size Drawing
PICO
Part
Number
LRE5D
LRE9D
LRE12D
LRE15D
LRE24D
LRE28D
LRE48D
LRF5D
LRF9D
LRF12D
LRF15D
LRF24D
LRF28D
LRF48D
Input
Volt.
Range
5-15
5-15
5-15
5-15
5-15
5-15
5-15
8-24
8-24
8-24
8-24
8-24
8-24
8-24
Output
Volt.
DC
Per
Output
5
9
12
15
24
28
48
5
9
12
15
24
28
48
Max.
Load
Current
(mA)
Per
Output
300
222
167
134
84
72
42
500
278
208
167
104
89
52
500
278
208
167
104
89
52
500
278
208
167
104
89
52
500
278
208
167
104
89
52
LRA5D
18-36
5
LRA9D
18-36
9
LRA12D
18-36
12
LRA15D
18-36
15
LRA24D
18-36
24
LRA28D
18-36
28
LRA48D
18-36
48
LRB5D
36-60
5
LRB9D
36-60
9
LRB12D
36-60
12
LRB15D
36-60
15
LRB24D
36-60
24
LRB28D
36-60
28
LRB48D
36-60
48
LRC5D
18-60
5
LRC9D
18-60
9
LRC12D
18-60
12
LRC15D
18-60
15
LRC24D
18-60
24
LRC28D
18-60
28
LRC48D
18-60
48
* Measurements taken with input voltage set at mid value.
**10% minimum load required.
Max.
Output
Power
(watts)
Per
Output
1.5
2.0
2.0
2.0
2.0
2.0
2.0
2.5
2.5
>
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
SERIES LR - DUAL OUTPUT
Eff. @
Full
Load
Typical
(%)*
78
78
79
79
80
80
80
78
78
79
79
80
80
80
76
76
77
79
80
80
80
74
74
74
76
76
76
76
75
75
75
77
78
78
78
Input
Current
Full
Load
Typical
(mA)*
385
515
505
505
500
500
500
400
400
395
395
390
390
390
245
245
240
235
230
230
230
140
140
140
135
135
135
135
170
170
170
165
165
165
165
Output
Volt.
Ripple@
Full LD.
1-1 MHz BW
mv p-p
150
125
125
125
125
125
175
150
125
125
125
125
125
175
100
100
100
100
100
100
150
100
100
100
100
100
100
150
100
100
100
100
100
100
150
Output
Volt.
Tolerance
(± %)*
0.75
0.50
0.50
0.50
0.50
0.50
0.50
0.75
0.50
0.50
0.50
0.50
0.50
0.50
0.75
0.50
0.50
0.50
0.50
0.50
0.50
0.75
0.50
0.50
0.50
0.50
0.50
0.50
0.75
0.50
0.50
0.50
0.50
0.50
0.50
**
V LD.
Reg.
25%-100%
Load
(± %)*
1.50
1.25
1.25
1.25
1.00
1.00
1.00
1.50
1.25
1.25
1.25
1.00
1.00
1.00
2.00
2.00
2.00
1.50
1.50
1.50
1.00
1.25
1.00
1.00
1.00
0.75
0.75
0.75
2.00
1.00
1.00
1.00
0.75
0.75
0.75
Line
Regu-
lation
(± %)*
2.00
1.50
1.25
1.25
1.25
1.00
1.00
2.00
1.50
1.25
1.25
1.25
1.00
1.00
0.75
0.50
0.50
0.50
0.25
0.25
0.25
0.50
0.25
0.25
0.25
0.25
0.25
0.25
1.25
0.75
0.75
0.75
0.50
0.50
0.50
Price
154.56
154.56
154.56
154.56
154.56
154.56
154.56
154.56
154.56
154.56
154.56
154.56
154.56
154.56
154.56
154.56
154.56
154.56
154.56
154.56
154.56
177.46
177.46
177.46
177.46
177.46
177.46
177.46
188.91
188.91
188.91
188.91
188.91
188.91
188.91
Series LR - Dual Output
Larger Size Schematic
Typical Weight: 65 grams
Larger Size Drawing
Ordering Instructions:
No minimum.
Net 30 days F.O.B. Pelham, NY
Delivery--stock to one wee for sample orders.
For immediate engineering assistance or to place an order:
Call Toll Free: 800-431-1064
PICO Electronics, Inc.
http://www.picoelectronics.com/dcdclow/pe82_83.htm?PartNo=LRC100S
3/25/2009
Pico Electronics: SERIES LR MILITARY DC-DC CONVERTERS
Page 3 of 3
143 Sparks Ave. Pelham, NY 10803-1837
Tel: 914-738-1400 or Fax: 914-738-8225
Go back to DC-DC Converters menu
http://www.picoelectronics.com/dcdclow/pe82_83.htm?PartNo=LRC100S
3/25/2009