NCP1055ST44T3 onsemi

Description: IC OFFLINE SWITCH FLYBACK SOT223, Voltage - Start Up: 8.5 V, Power (Watts): 40 W, Fault Protection: Current Limiting, Open Loop, Over Load, Over Temperature, Supplier Device Package: SOT-223 (TO-261), Voltage - Supply (Vcc/Vdd): 7.5V ~ 10V, Topology: Flyback, Output Isolation: Isolated, Voltage - Breakdown: 700V, Internal Switch(s): Yes, Frequency - Switching: 44kHz, Duty Cycle: 77%, Operating Temperature: -40°C ~ 150°C (TJ), Part Status: Obsolete, Mounting Type: Surface Mount, Package / Case: TO-261-4, TO-261AA, Packaging: Tape & Reel (TR).