SP2637AF is a high perfomance offl™εε<ine PSR power switch for low power λ♥₹AC/DC charger and adaπ←λpter applications. It®™ operates in primary-side sensin ∏g and regulation.Thus, opto-coupler and±≥'≥ TL431 are not required. In CC conβ≈§trol, the output current and p©₹ε∏ower setting can be adjusted e ∏¶xtemally by the sense resistor Rcs a₹₽t CS PIN. In CV control,multi-mode↔♥ operations are utilized to achieve÷∞λ high performance and high efficiency ÷​. In addition, good load¥®↔© regulation is achieved by the built-i✔€≥'n cable drop compensation. SP2637AF ♦σoperates in PFM in CC¶↔ mode, and it operates in PWM+PFM inεδγ CV mode with frequency reductio‌$n at light/medium load. The ch¥"ip consumes very low op↓σα≈eration current. It achieβ×€ves less than 75mW standby pα÷∞♣ower to meet all global energy effi©πciency regulations. SP2637AF•∏£> offers comprehensiv↔£§e protection coverage w↓<ith auto-recovery feature ₹εincluding Cycle-by-Cycle current limi®♥ting, VDD over voltage prote'☆ction (OVP),FB over voltage pro£γ✔​tection,load short circui ÷ ¥t protection, VDD under voltaπ>ge lockout (UVLO), OT ↓P etc. SP2637AF is of ♠₩fered in SOP8 packages.