onsemi FSL336LRLX, Buck Power Switch IC 7-Pin, LSOP

Built-in Avalanche-Rugged SenseFET: 650 V
Fixed Operating Frequency: 50 kHz
No-Load Power Consumption:
<25 mW at 230 VAC with External Bias,
<120 mW at 230 VAC without External Bias
No Need for Auxiliary Bias Winding
Frequency Modulation for Attenuating EMI
Pulse-by-Pulse Current Limiting
Ultra-Low Operating Current: 250 μA
Built-in Soft-Start and Startup Circuit
Adjustable Peak Current Limit
Built-in Transconductance (Error) Amplifier
Various Protections: Overload Protection (OLP), Over-Voltage Protection (OVP), Feedback Open-Loop Protection (FB_OLP), Thermal Shutdown (TSD)
Fixed 650 ms Restart Time for Safe Auto-Restart of All Protections
Applications
This product is general usage and suitable for many different applications.