The LM317 DC Linear Regulator is Adjustable Step Down Power Module which converts 4.5-40V to 1.2-37V 1.5A using DC source voltage from one level to a lower level.
This DIY Power Supply Module LM317 is important in some portable electronic devices such as cell phones and laptops, which are primarily supplied by power from batteries. The step-down voltage can be easily adjusted and is therefore more efficient than using multiple batteries to achieve the same thing.
Specification:
- Input and output voltage difference (VI-VO): 40Vdc (max)
- Adjustable output voltage range: 1.2 ~ 37V
- Operating Temperature (°C): -55 to +150
- Output Current: 1.5A
- Input Voltage (V): 4.5 ~ 40 V
- Characteristic Frequency: 100MHz
- Input Method: VIN Input Positive Level, GND Input Negative
- Output Method: VOUT Output Positive Level, GND Output Negative
Package Included:
- 1X LM317 Adjustable Voltage Regulator Module

Hi-Link HLK-PM03 3.3V 3W AC-DC Power Supply Module 





JD D’Souza –
Excellent product. Worth it! I recommend this seller. reasonable price.