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It is a LM317 Adjustable Power Supply Module, Input Voltage: DC 3V~ 35V or AC0- 28V, Output voltage: DC 1.25~32V can adjust continuously, Output current: 5mA~1.5A, Suitable for Suitable for DIY an adjustable voltage regulated power supply, Industrial equipment Voltage convert, Power Supply Transformers etc.
LM317 is three-terminal adjustable regulator integrated circuit early made by National Semiconductor and widely used in many integrated circuit manufacturers. Easily use , it just need two external resistance to set output voltage. Besides, its linear adjusting ratio and rejection ratio is better than the standard fixed regulators.Characteristic:
- 1. Adopted two original LM317 big chip in parallel, make the output current increase 1 time, the highest short-circuit current can reach 4.5A.
- 2. The input part adopts 6A flat bridge to create the bridge rectifier. It can input DC or AC and no need to distinguish between the positive and the negative.
- 3. The load protection can prevent regulator from ageing and damaged and lead to burn down as suddenly rising voltage.
- 4. The high precision digital display voltmeter is convenience to view during the process of adjusting voltage, and no need to use additional multimeter to test.
- 5. Used large volume heat sink which is cooling well, more stable and durable.
- Input voltage: DC 35V(Max), AC 28V(Max).
- Output voltage: DC 1.25~32V, can adjust continuously.
- the max voltage error: DC 40V
- The min voltage error: DC 3V
- Output current: 5mA~1.5A
- Load current: recommend 5mA~3A
- Short-circuit current: 4~4.5A
- Internal protection: over-heat, over-load, short-circuit
- External protection: the external adds load protection to protect circuit.
- Working temperature: -10~+85℃
- Save temperature：-65℃~+150℃
- Typical linear adjusting ratio: 0.01%
- Typical load adjusting ratio: 0.1%
- Ripple rejection ratio: 80dB
- Product size: 76*57*33mm
- 1 x Parallel Type Voltage Regulated Power Panel ( Adjustable Power Supply Module )