SP2637AF is a high perfomance offlin$±e PSR power switch for low pow↑✔er AC/DC charger and ada♣•pter applications. It operates in βφφ₩primary-side sensing an$'d regulation.Thus, opto-coupler ♦£>¥and TL431 are not required. In CC cont₽±♣rol, the output current and power §★setting can be adjusted extemally by thε♠e sense resistor Rcs at λ✘ΩαCS PIN. In CV controβ←♦÷l,multi-mode operations are utilizδ∞ed to achieve high performance •‌‍and high efficiency. In addition, good α≥ ♦load regulation is achieved by the♠Ω$ built-in cable drop compen" sation. SP2637AF operates in PFM in §↔♦±CC mode, and it operate±♥ ₽s in PWM+PFM in CV mode wi$≥★th frequency reduction at lig​&'ht/medium load. The chip coβ$¥nsumes very low operation current. ↔"×​It achieves less than 75mW stanδ‌≈‌dby power to meet all global energy ®‍∞♦efficiency regulations. SP2637A♥→$F offers comprehensive prot←π•γection coverage with auto-rec♣↕©overy feature including Cycδ★le-by-Cycle current limiting, VDD oδ✔ver voltage protection (OVP),FB₩• over voltage protection,load short ★πσcircuit protection, VDD under vo✘£ltage lockout (UVLO), O‍§ΩTP etc. SP2637AF is offered i♦‌λn SOP8 packages.