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Pico Electronics: SERIES LR MILITARY DC-DC CONVERTERS

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 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 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.

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)
FEATURES
  • Voltage regulation over input range of
Unit
Low
High
LRE
5V
15V
LRF
8V
24V
LRA
18V
36V
LRB
36V
60V
LRC
18V
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
    Input
    Volt.
    Range
    Output
    Volt.
    DC
    Max.
    Load
    Current
    (mA)
    Max.
    Output
    Power
    (watts)
    Eff. @
    Full
    Load
    Typical
    (%)*
    Input
    Current
    Full
    Load
    Typical
    (mA)*
    Output
    Volt.
    Ripple@
    Full LD.
    1-1 MHz BW
    mv p-p
    Output
    Volt.
    Tolerance
    (± %)*
    **
    V LD.
    Reg.
    25%-100%
    Load
    (± %)*
    Line
    Regu-
    lation
    (± %)*
    Price
    (US $)
    LRE2S
    LRE3.3S
    LRE5S
    LRE5.2S
    LRE9S
    LRE12S
    LRE15S
    LRE24S
    LRE28S
    LRE48S
    LRE100S
    5-15
    5-15
    5-15
    5-15
    5-15
    5-15
    5-15
    5-15
    5-15
    5-15
    5-15
    2
    3.3
    5
    5.2
    9
    12
    15
    24
    28
    48
    100
    1000
    910
    600
    576
    444
    333
    267
    167
    143
    83
    40
    2
    3
    3
    3
    4
    4
    4
    4
    4
    4
    4
    68
    75
    78
    78
    78
    79
    79
    80
    80
    80
    80
    294
    400
    385
    385
    515
    505
    505
    500
    500
    500
    500
    150
    200
    150
    150
    125
    125
    125
    125
    125
    175
    200
    1.50
    1.00
    0.75
    0.75
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    3.50
    3.00
    1.50
    1.50
    1.25
    1.25
    1.25
    1.00
    1.00
    1.00
    1.00
    3.50
    2.75
    2.00
    2.00
    1.50
    1.25
    1.25
    1.25
    1.00
    1.00
    1.00
    144.19
    144.19
    144.19
    144.19
    144.19
    144.19
    144.19
    144.19
    144.19
    144.19
    193.72
    LRF2S
    LRF3.3S
    LRF5S
    LRF5.2S
    LRF9S
    LRF12S
    LRF15S
    LRF24S
    RF28S
    LRF48S
    LRF100S
    8-24
    8-24
    8-24
    8-24
    8-24
    8-24
    8-24
    8-24
    8-24
    8-24
    8-24
    2
    3.3
    5
    5.2
    9
    12
    15
    24
    28
    48
    100
    1500
    1212
    1000
    961
    556
    417
    333
    208
    179
    104
    50
    3
    4
    5
    5
    5
    5
    5
    5
    5
    5
    5
    69
    75
    78
    78
    78
    79
    79
    80
    80
    80
    80
    272
    333
    400
    400
    400
    395
    395
    390
    390
    390
    390
    150
    200
    150
    150
    125
    125
    125
    125
    125
    175
    200
    1.50
    1.00
    0.75
    0.75
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    3.50
    3.00
    1.50
    1.50
    1.25
    1.25
    1.25
    1.00
    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
    144.19
    144.19
    144.19
    144.19
    144.19
    144.19
    144.19
    144.19
    144.19
    144.19
    193.72
    LRA2S
    LRA3.3S
    LRA5S
    LRA5.2S
    LRA9S
    LRA12S
    LRA15S
    LRA24S
    LRA28S
    LRA48S
    LRA100S
    18-36
    18-36
    18-36
    18-36
    18-36
    18-36
    18-36
    18-36
    18-36
    18-36
    18-36
    2
    3.3
    5
    5.2
    9
    12
    15
    24
    28
    48
    100
    1500
    1212
    1000
    961
    556
    417
    333
    208
    179
    104
    50
    3
    4
    5
    5
    5
    5
    5
    5
    5
    5
    5
    69
    76
    76
    76
    76
    77
    79
    80
    80
    80
    80
    161
    195
    245
    245
    245
    240
    235
    230
    230
    230
    230
    150
    150
    100
    100
    100
    100
    100
    100
    100
    150
    200
    1.50
    1.00
    0.75
    0.75
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    4.00
    3.00
    2.00
    2.00
    2.00
    2.00
    1.50
    1.50
    1.50
    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
    144.19
    144.19
    144.19
    144.19
    144.19
    144.19
    144.19
    144.19
    144.19
    144.19
    193.72
    LRB2S
    LRB3.3S
    LRB5S
    LRB5.2S
    LRB9S
    LRB12S
    LRB15S
    LRB24S
    LRB28S
    LRB48S
    LRB100S
    36-60
    36-60
    36-60
    36-60
    36-60
    36-60
    36-60
    36-60
    36-60
    36-60
    36-60
    2
    3.3
    5
    5.2
    9
    12
    15
    24
    28
    48
    100
    1500
    1212
    1000
    961
    556
    417
    333
    208
    179
    104
    50
    3
    4
    5
    5
    5
    5
    5
    5
    5
    5
    5
    67
    74
    74
    74
    74
    74
    76
    76
    76
    76
    78
    93
    113
    140
    140
    140
    140
    135
    135
    135
    135
    135
    150
    150
    100
    100
    100
    100
    100
    100
    100
    150
    200
    1.50
    1.00
    0.75
    0.75
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    4.00
    3.00
    1.25
    1.25
    1.00
    1.00
    1.00
    0.75
    0.75
    0.75
    1.00
    2.00
    1.50
    0.50
    0.50
    0.25
    0.25
    0.25
    0.25
    0.25
    0.25
    0.50
    170.40
    170.40
    170.40
    170.40
    170.40
    170.40
    170.40
    170.40
    170.40
    170.40
    228.94
    LRC2S
    LRC3.3S
    LRC5S
    LRC5.2S
    LRC9S
    LRC12S
    LRC15S
    LRC24S
    LRC28S
    LRC48S
    LRC100S
    18-60
    18-60
    18-60
    18-60
    18-60
    18-60
    18-60
    18-60
    18-60
    18-60
    18-60
    2
    3.3
    5
    5.2
    9
    12
    15
    24
    28
    48
    100
    1500
    1212
    1000
    961
    556
    417
    333
    208
    179
    104
    50
    3
    4
    5
    5
    5
    5
    5
    5
    5
    5
    5
    67
    74
    76
    76
    76
    76
    77
    78
    78
    78
    78
    115
    139
    170
    170
    170
    170
    165
    165
    165
    165
    165
    150
    150
    100
    100
    100
    100
    100
    100
    100
    150
    200
    1.50
    1.00
    0.75
    0.75
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    4.00
    3.00
    2.00
    2.00
    1.00
    1.00
    1.00
    0.75
    0.75
    0.75
    1.00
    2.50
    1.75
    1.25
    1.25
    0.75
    0.75
    0.75
    0.50
    0.50
    0.50
    0.50
    183.51
    183.51
    183.51
    183.51
    183.51
    183.51
    183.51
    183.51
    183.51
    183.51
    246.87
    * Measurements taken with input voltage set at mid value.
    ** 10% minimum load required.


    Series LR - Single Output

    Typical Weight: 65 grams

    Larger Size Drawing

    Larger Size Schematic


    SERIES LR - DUAL OUTPUT

    PICO
    Part
    Number
    Input
    Volt.
    Range
    Output
    Volt.
    DC
    Per
    Output
    Max.
    Load
    Current
    (mA)
    Per
    Output
    Max.
    Output
    Power
    (watts)
    Per
    Output
    Eff. @
    Full
    Load
    Typical
    (%)*
    Input
    Current
    Full
    Load
    Typical
    (mA)*
    Output
    Volt.
    Ripple@
    Full LD.
    1-1 MHz BW
    mv p-p
    Output
    Volt.
    Tolerance
    (± %)*
    **
    V LD.
    Reg.
    25%-100%
    Load
    (± %)*
    Line
    Regu-
    lation
    (± %)*
    Price
    (US $)
    LRE5D
    LRE9D
    LRE12D
    LRE15D
    LRE24D
    LRE28D
    LRE48D
    5-15
    5-15
    5-15
    5-15
    5-15
    5-15
    5-15
    5
    9
    12
    15
    24
    28
    48
    300
    222
    167
    134
    84
    72
    42
    1.5
    2.0
    2.0
    2.0
    2.0
    2.0
    2.0
    78
    78
    79
    79
    80
    80
    80
    385
    515
    505
    505
    500
    500
    500
    150
    125
    125
    125
    125
    125
    175
    0.75
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    1.50
    1.25
    1.25
    1.25
    1.00
    1.00
    1.00
    2.00
    1.50
    1.25
    1.25
    1.25
    1.00
    1.00
    176.96
    176.96
    176.96
    176.96
    176.96
    176.96
    190.19
    LRF5D
    LRF9D
    LRF12D
    LRF15D
    LRF24D
    LRF28D
    LRF48D
    8-24
    8-24
    8-24
    8-24
    8-24
    8-24
    8-24
    5
    9
    12
    15
    24
    28
    48
    500
    278
    208
    167
    104
    89
    52
    2.5
    2.5
    2.5
    2.5
    2.5
    2.5
    2.5
    78
    78
    79
    79
    80
    80
    80
    400
    400
    395
    395
    390
    390
    390
    150
    125
    125
    125
    125
    125
    175
    0.75
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    1.50
    1.25
    1.25
    1.25
    1.00
    1.00
    1.00
    2.00
    1.50
    1.25
    1.25
    1.25
    1.00
    1.00
    176.96
    176.96
    176.96
    176.96
    176.96
    176.96
    190.19
    LRA5D
    LRA9D
    LRA12D
    LRA15D
    LRA24D
    LRA28D
    LRA48D
    18-36
    18-36
    18-36
    18-36
    18-36
    18-36
    18-36
    5
    9
    12
    15
    24
    28
    48
    500
    278
    208
    167
    104
    89
    52
    2.5
    2.5
    2.5
    2.5
    2.5
    2.5
    2.5
    76
    76
    77
    79
    80
    80
    80
    245
    245
    240
    235
    230
    230
    230
    100
    100
    100
    100
    100
    100
    150
    0.75
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    2.00
    2.00
    2.00
    1.50
    1.50
    1.50
    1.00
    0.75
    0.50
    0.50
    0.50
    0.25
    0.25
    0.25
    176.96
    176.96
    176.96
    176.96
    176.96
    176.96
    190.19
    LRB5D
    LRB9D
    LRB12D
    LRB15D
    LRB24D
    LRB28D
    LRB48D
    36-60
    36-60
    36-60
    36-60
    36-60
    36-60
    36-60
    5
    9
    12
    15
    24
    28
    48
    500
    278
    208
    167
    104
    89
    52
    2.5
    2.5
    2.5
    2.5
    2.5
    2.5
    2.5
    74
    74
    74
    76
    76
    76
    76
    140
    140
    140
    135
    135
    135
    135
    100
    100
    100
    100
    100
    100
    150
    0.75
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    1.25
    1.00
    1.00
    1.00
    0.75
    0.75
    0.75
    0.50
    0.25
    0.25
    0.25
    0.25
    0.25
    0.25
    203.17
    203.17
    203.17
    203.17
    203.17
    203.17
    218.36
    LRC5D
    LRC9D
    LRC12D
    LRC15D
    LRC24D
    LRC28D
    LRC48D
    18-60
    18-60
    18-60
    18-60
    18-60
    18-60
    18-60
    5
    9
    12
    15
    24
    28
    48
    500
    278
    208
    167
    104
    89
    52
    2.5
    2.5
    2.5
    2.5
    2.5
    2.5
    2.5
    75
    75
    75
    77
    78
    78
    78
    170
    170
    170
    165
    165
    165
    165
    100
    100
    100
    100
    100
    100
    150
    0.75
    0.50
    0.50
    0.50
    0.50
    0.50
    0.50
    2.00
    1.00
    1.00
    1.00
    0.75
    0.75
    0.75
    1.25
    0.75
    0.75
    0.75
    0.50
    0.50
    0.50
    216.28
    216.28
    216.28
    216.28
    216.28
    216.28
    232.45
    * Measurements taken with input voltage set at mid value.
    **10% minimum load required.


    Series LR - Dual Output

    Typical Weight: 65 grams

    Larger Size Drawing

    Larger Size Schematic



    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.

    143 Sparks Ave. Pelham, NY 10803-1810
    Tel: 914-738-1400 or Fax: 914-738-8225

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