SP2637AF is a high perfomance offlin∞±e PSR power switch for low power AC/DC charger anβ∑∑™d adapter applications. It ∑↓∏operates in primary-side sensing and reg≈¶ulation.Thus, opto-coupler and TL4♥δ×31 are not required. In∞≤α CC control, the output current ♦≥☆and power setting can be adjusted extemally ÷♣by the sense resistor Rcs at CS PIN. In CV c®≥↓→ontrol,multi-mode operationγ↕®s are utilized to achieve high performance and hi© ∞gh efficiency. In add≥®$ition, good load regulation is ac ✔hieved by the built-in c​"↓able drop compensation. SP2637AF operates in   ↔PFM in CC mode, and it operates i™€§n PWM+PFM in CV mode withε✔₩γ frequency reduction at light/medium load. The γ♥Ωchip consumes very low oper£↓₹ation current. It achieves less than↔≈♦♦ 75mW standby power to meet aφ≥ll global energy efficiency regulations. S±λP2637AF offers comprehens ₹★∏ive protection coverage with auto-recoveπ™ry feature including Cycle≥©-by-Cycle current limiting, VDD over voltag'Ω∞e protection (OVP),FB over v÷×σ¶oltage protection,load sho↕>✔rt circuit protection, VDD under voltage lockout ♥♠λ(UVLO), OTP etc. SP2637AF is offered in SOP8 pa©×ckages.