• Smart Turn off Technology
• Secondary-side Synchronous Rectifier Optimized for 5V Systems
• Suitable for Discontinuous Mode (DCM), Critical Conduction Mode (CRM)
• Suitable for Primary Side Regulation (PSR), Secondary Side Regulation (SSR) 
• Achieve Good Dynamic Performance 
• Compact Package: SOT335

SY23427 is a high-performance synchronous rectifier which contains controller and MOSFET devices. This solution not only directly reduces power dissipation of the rectifier but also indirectly reduces primary-side losses, due to compounding of efficiency gains. The DRAIN pin of SY23427 can support 60V voltage stress.

SY23427 will achieve ultra-low power consumption when the circuit operates in no load.

SY23427 include a watch dog and discharge module to achieve good dynamic performance co-operating with SY50X6X used at Primary Side Regulator Flyback.

The SY23427 is available in a compact SOT335 package.