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This literature is subject to all applicable copyright laws and is not for resale in any manner.FSL306LRN Green Mode Buck Switch February 2017 FSL306LR Green Mode Buck Switch Description Features The FSL306LR integrate Pulse Width Modulator (PWM) Built-in Avalanche Rugged SenseFET: 650 V and SenseFET is specifically designed for high- Fixed Operating Frequency: 50 kHz performance offline buck, buck-boost, and non-isolation flyback Switched Mode Power Supplies (SMPS) with No-Load Power Consumption: < 25 mW at 230 VAC minimal external components. This device integrates a with External Bias <120 mW at 230 V without AC high-voltage power regulator that enables operation External Bias without auxiliary bias winding. An internal No Need for Auxiliary Bias Winding transconductance amplifier reduces external components for the feedback compensation circuit. Frequency Modulation for Attenuating EMI The integrated PWM controller includes: 10 V regulator Pulse-by-Pulse Current Limiting for no external bias circuit, Under-Voltage Lockout Ultra-Low Operating Current: 250 A (UVLO), Leading-Edge Blanking (LEB), an optimized gate turn-on / turn-off driver, EMI attenuator, Thermal Built-in Soft-Start and Startup Circuit Shutdown (TSD), temperature-compensated precision current sources for loop compensation, and fault- Adjustable Peak Current Limit protection circuitry. Protections include: Overload Built-in Transconductance (Error) Amplifier Protection (OLP), Over-Voltage Protection (OVP), Feedback Open Loop Protection (FB OLP), and Various Protections: Overload Protection (OLP), Over-Voltage Protection (OVP), Feedback Open Abnormal Over-Current Protection (AOCP). FSL306LR offers good soft-start performance during startup. Loop Protection (FB OLP), AOCP (Abnormal Over- Current Protection), Thermal Shutdown (TSD) The internal high-voltage startup switch and the Burst- Mode operation with very low operating current reduce Fixed 650 ms Restart Time for Safe Auto-Restart Mode of All Protections the power loss in Standby Mode. As the result, it is possible to reach power loss of 120 mW without Applications external bias and 25 mW with external bias when input voltage is 230 VAC. SMPS for Home Appliances and Industrial Applications SMPS for Auxiliary Power Ordering Information (1) Typical Output Power Operating 85 V ~ 265 V AC AC Part Packing (2) Junction PKG & Open Frame Current Number Method R DS(ON),MAX Temperature Limit Buck Flyback (3) Application Application FSL306LRN 7-DIP Rail -40C ~125C 0.45 A 18 3 W 7 W FSL306LRLX 7-LSOP Tape & Reel Notes: 1. The junction temperature can limit the maximum output power. 2. Maximum practical continuous power in an open-frame design at 50C ambient. 3. Based on 15 V output voltage condition. Output voltage can limit the maximum output power. 2013 Semiconductor Components Industries, LLC. www.fairchildsemi.com FSL306LRN / FSL306LRL Rev.2 www.onsemi.com