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20 Watt

Single and Dual Output
Low Profile Regulated, 4:1 Wide Input


Compliant to RoHS and Reach, meets safety standards

Our 20 watt regulated, wide input range DC-DC converter features a six-sided continuous shield and a 4:1 ultra wide input voltage range. Other features include an extra small low profile package of 1" x 1" x 0.39" and high efficiency up to 92%. This DC-DC converter also meets the following safety standards: UL60950-1, EN60950-1 and IEC60950-1.

 

INPUT

  • Voltage Range
    • 24 Vdc nominal input: 9 to 36 Vdc
    • 48 Vdc nominal input: 18 to 75 Vdc
  • Input reflected ripple current: 30 mAp-p
  • Start up time
    • Power up and remote ON/OFF: 30 ms
  • Input surge voltage
    • 24 Vin nominal input: 50 Vdc
    • 48 Vin nominal input: 100 Vdc
  • Input filter: Pi type
  • Remote ON/OFF
    • Positive logic
      • DC-DC ON: Open or 3 to 15 Vdc
      • DC-DC OFF: Short or 0 to 1.2 Vdc
    • Negative logic
      • DC-DC ON: Short or 0 to 1.2 Vdc
      • DC-DC OFF: Open or 3 to 15 Vdc
  • Input current of control pin
    • Nominal input: -0.5 to 1 mA
  • Remote off state input current
    • Nominal input: 2 mA

OUTPUT

  • Voltage accuracy: ±1%
  • Line regulation
    • Low line to high line at full load
      • Single: ±0.2%
      • Dual: ±0.5%
  • Load regulation
    • No load to full load, single: ±0.2%
    • No load to full load, dual: ±1%
    • 10 to 90% load, single: ±0.1%
    • 10 to 90% load, dual: ±0.8%
  • Cross regulation
    • Asymmetrical load 25%/100% FL, dual
  • Voltage and adjustability
    • Single output: ±10%
  • Ripple and noise (20 mHZ bandwidth): 75 to 100 mVp-p
  • Temperature coefficient: ±0.02%/°C
  • Transient response recovery time
    • 25% load step change: 250µS
  • Over voltage protection
    • 3.3 Vdc output: 3.7 to 5.4 Vdc
    • 5 Vdc output: 5.6 to 7 Vdc
    • 12 Vdc output: 13.5 to 19.6 Vdc
    • 15 Vdc output: 16.8 to 20.5 Vdc
  • Over load protection: 150%
  • Short circuit protection: continuous, automatics recovery

GENERAL

  • Efficiency: 89 to 90%
  • Isolation voltage
    • Input to Output: 1600 Vdc, 1 min.
    • Input to Case: 1000 Vdc, 1 min.
  • Isolation resistance: 500 Vdc, 1 min
  • Isolation capacitance: 1500 pF
  • Switching frequency
    • 3.3 and 5 Vdc output: 248 to 303 kHz
    • Others: 297 to 363 kHz

ENVIRONMENTAL

  • Operating ambient temperature
    • Without derating: -40 to 60°C
    • With derating: 60 to 101°C
  • Maximum case temperature: 105°C
  • Storage temperature range: -55 to 125°C
  • Thermal impedance
    • Vertical direction by natural convection (20 LFM)
      • Without heat sink: 17.6°C/W
      • With heat sink: 14.8°C/W
  • Thermal shock: MIL-STD-810F
  • Vibration: MIL-STD-810F
  • Relative humidity: 5 to 95%
Input Voltage
Range (Vdc)
Output Voltage
(Vdc)
Output Current
Full Load (A)
Input Current
No load (mA)
Efficiency
(%)
Model NumberMax. Capacitor
Load µF
Single Output
9 - 36 3.3 4500 10 89 LPB20-24S33 7000
5 4000 10 89 LPB20-24S5 5000
12 1670 6 89 LPB20-24S12 850
15 1330 6 89 LPB20-24S15 700
18 - 75 3.3 4500 10 90 LPB20-48S33 7000
5 4000 10 90 LPB20-48S5 5000
12 1670 4 89 LPB20-48S12 850
15 1330 4 90 LPB20-48S15 700
Dual Output
9 - 36 ±12 ±833 6 89 LPB20-24-12 ±500
±15 ±667 6 90 LPB20-24-15 ±350
18 - 75 ±12 ±833 4 89 LPB20-48-12 ±500
±15 ±667 4 90 LPB20-48-15 ±350