With reverse connect protection, output 5V / 12V / 24V adjustable, beyond LM2577 performance. The built-in thermal protection, over-current protection reliability. 2. Wide input voltage range, the input voltage up to 35V. 3. Adjustable output voltage, maximum support 40V. 4. The built-in thermal protection, over-current protection full reliability protection circuit, high reliability. 5. System conversion efficiency can achieve 90% above, convenient thermal design. 6. TO263-5 l standard packaging, suitable for booster application within 30W.