Conv DC-DC Single Step Up/Step Down 500V 5-Pin T/R

MP157GJ-Z is a primary side regulator providing accurate constant voltage (CV) regulation without the Opto-coupler. It supports Buck, Buck-Boost, Boost and Flyback topologies. A 500V MOSFET is integrated in the regulator, so very simple structure and low cost can be achieved. These features make MP157GJ-Z an ideal solution for off-line low power applications. Typical applications include home appliance, standby power and industrial control. MP157GJ-Z is a green mode operation regulator. When the load decreases, the peak current and the switching frequency decrease with the load. As a result, it still offers excellent efficiency performance at light load, thus better average efficiency is achieved. MP157GJ-Z features various protections like Thermal Shutdown (TSD), VCC under Voltage Lockout (UVLO), Over Load Protection (OLP), Short Circuit Protection (SCP), Open Loop Protection.

• Primary side constant voltage (CV) control, supporting Buck, Buck-Boost, Boost and Flyback topologies
• Integrated 500V/10? MOSFET
• < 100mW No-load power consumption
• Up to 6W output power
• Maximum discontinuous conduction mode (DCM) output current less than 225mA, maximum continuous conduction mode (CCM) output current less than 360mA
• Low Vcc Operating Current
• Frequency Foldback
• Limited maximum frequency
• Peak Current Compression
• Internal High Voltage Current Source
• Internal 400ns Leading Edge Blanking
• Thermal Shutdown (auto restart)
• VCC Under Voltage Lockout with Hysteresis (UVLO)
• Timer based Over Load Protection
• Short Circuit Protection
• Open Loop Protection