The AP5056 SMD SO8, SOP8 is a complete constant current & constant voltage linear charger
for single cell lithium-ion batteries. 1A Linear Li-Ion Battery Charger.
Preset 4.2V Charge Voltage with ±1% Accuracy,
Automatic Recharge, Battery temperature monitoring function. 
Applications:
 Cellular Telephones, PDAs, MP3 /MP4 Players
 Charging Docks and Cradles
 Bluetooth, GPS Applications
Náhrada pre/Spare Parts for WS4503, WS4503S, TP4056, SE9011, LY5056,..