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Home > Polytron Power Supplies > Polytron LPB20 Series DC-DC Converters, 20 Watt, Single and Dual Output, Low Profile, Regulated, 4:1 Wide Input Range, 1" x 1" x 0.39"
Polytron LPB20 Series DC-DC Converters, 20 Watt, Single and Dual Output, Low Profile, Regulated, 4:1 Wide Input Range, 1" x 1" x 0.39"
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Price (Each): Call or e-mail for quotes or to order.
Available to Order
Item Number: LPB20
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Compliant to RoHS and Reach, meets safety standards
Our 20-watt regulated, wide input range LPB20 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.
LPB20 Series Specification Sheet PDF
Daburn Part
Number |
Input Voltage
Range (Vdc) |
Output Voltage
(Vdc) |
Input Current
No load (mA) |
Output Current
Full Load
(A) |
Efficiency
% |
Max. Capacitor
Load µF |
| Single Output |
| LPB20-24S33 |
9 -36 |
3.3 |
10 |
4500 |
85 |
7000 |
| LPB20-24S5 |
5 |
10 |
4000 |
87 |
5000 |
| LPB20-24S12 |
12 |
6 |
1670 |
90 |
850 |
| LPB20-24S15 |
15 |
6 |
1330 |
91 |
350 |
| LPB20-48S33 |
18 -75 |
3.3 |
10 |
4500 |
90 |
7000 |
| LPB20-48S5 |
5 |
10 |
4000 |
85 |
5000 |
| LPB20-48S12 |
12 |
4 |
2000 |
87 |
850 |
| LPB20-48S15 |
15 |
4 |
1330 |
90 |
700 |
| Dual Output |
| LPB20-24-12 |
9 -36 |
±12 |
6 |
±833 |
89 |
±500 |
| LPB20-24-15 |
±15 |
6 |
±667 |
90 |
±350 |
| LPB20-48-12 |
18 -75 |
±12 |
4 |
±833 |
89 |
±500 |
| LPB20-48-15 |
±15 |
4 |
±667 |
90 |
±350 |
Input and Output Specifications:
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
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
- 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
More Specifications:
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%
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