IC 5501 a 5501 FA5501A FA5501AN LCD power supply chip SOP8 

original

FA5501AN 5501A 5501A SOP8 ORIGINAL

FA5500AN - (FA5500A / FA5501A) Power Supply Control IC

Low current consumption by CMOS process Start-up : 20?A(max.), Operating : 1mA(typ.)

Drive circuit for connecting a power MOSFET directly

Output peak current, source : 500mA, sink : 1000mA

Compensated current sense comparator for light load

Open/short protection at feedback (FB) pin

Undervoltage Lockout FA5500A: 11.5V ON / 9V OFF FA5501A:13V ON / 9V OFF

Overvoltage protection