onsemi FSL306LRL

650V Integrated Power Switch with Error Amplifier and no bias winding for 3Watt offline buck converters

Switching Regulator, Current-mode, 0.5A, 55kHz Switching Freq-Max, PDSO7

FSL306LRL 10 V 0.8 mA Green Mode Buck Switch -LSOP-7

Current Mode PWM Controller 12V 150mA 7-Pin LSOP Rail

IC PWM/SENSEFET SMPS 7SOP / AC switching Controller

Green Mode Fairchild Buck Switch

The FSL306LR integrate Pulse Width Modulator (PWM) and SenseFET is specifically designed for high-performance offline buck, buck-boost, and non-isolation flyback Switched Mode Power Supplies (SMPS) with minimal external components. This device integrates a high-voltage power regulator that enables operation without auxiliary bias winding. An internal transconductance amplifier reduces external components for the feedback compensation circuit.The integrated PWM controller includes: 10 V regulator for no external bias circuit, Under-Voltage Lockout (UVLO), Leading-Edge Blanking (LEB), an optimized gate turn-on / turn-off driver, EMI attenuator, Thermal Shutdown (TSD), temperature-compensated precision current sources for loop compensation, and fault-protection circuitry. Protections include: Overload Protection (OLP), Over-Voltage Protection (OVP), Feedback Open Loop Protection (FB_OLP), and Abnormal Over-Current Protection (AOCP). FSL306LRN offers good soft-start performance during startup.The internal high-voltage startup switch and the Burst-Mode operation with very low operating current reduce the power loss in Standby Mode. As the result, it is possible to reach power loss of 120 mW without external bias and 25 mW with external bias when input voltage is 230 VAC.