1. Fixed voltage output and adjustable voltage output of 3.3V, 5V, and 12V 2. Adjustable output voltage range 1.2V-37V±4% 3. Good output linearity and load adjustable 4. Output current can be up to 3A 5. Input voltage can be up to 40V 6. Adopting an internal oscillation frequency of 150KHz, it belongs to the second generation of switching voltage regulators, with low power consumption and high efficiency. Low power standby mode, the typical value of lo is 80ATTL power-off capability 7. With overheat protection and current limiting protection function 8. Package: TO-220 () and TO-263 (S) The peripheral circuit is simple, only 4 external components are required and standard inductors that are easy to purchase are used. Colour:black Material:PCB Due to different product batches, the appearance , which does not affect the use Package Contents: 1 * Multi-Circuit Switching Power Supplies Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.