SP2637AF is a high perfomance offline PS₩→R power switch for low power AC/DC δ charger and adapter a•​≠pplications. It operat>♦es in primary-side sensing and regulation.Thus₹✘©÷, opto-coupler and TL431 are not required. ‍'™ In CC control, the output current and powe←∞r setting can be adjusted extemally by the sense ♦><↔resistor Rcs at CS PIN. In CV control,multi-m& ¥ode operations are utilized to achieve high perfoσΩ<rmance and high effic‍δ£iency. In addition, good load r∏↓Ωegulation is achieved by the↕" ₹ built-in cable drop compensation. SP≠§'&2637AF operates in PFM in CC mode, and it operatΩ☆es in PWM+PFM in CV mode with frequency reduct™λ™₹ion at light/medium load. The ch'₽ip consumes very low operation current. It achiev•←¥₽es less than 75mW standby power₹✔ to meet all global energy efficiency regul♠♣₩★ations. SP2637AF offers compre♠>₽"hensive protection coverage with auto-recovery≤↕× feature including Cycle-by-Cycle current lim☆∞→♥iting, VDD over voltage protection (OVP),FB oβ≥✘ver voltage protection,load short circuit p←λφrotection, VDD under voltage lockout (UVLO), OTP ♠♣etc. SP2637AF is offered  <βin SOP8 packages.