onsemi NCP1126
The NCP112x products integrates a fixed−frequency peak current mode controller with a low on−resistance, 650 V MOSFET. When the output power demand diminishes, the IC automatically enters frequency foldback mode and provides excellent efficiency at light loads. When the power demand reduces further, it enters into a skip mode to reduce the standby consumption down to no load condition.FEATURES
● Built−in 650 V, 1 A MOSFET with RDS(on) of 8.6 W for NCP1124● Built−in 650 V, 1.8 A MOSFET with RDS(on) of 5.4 W for NCP1126
● Built−in 650 V, 5.5 A MOSFET with RDS(on) of 2.1 W for NCP1129
● Fixed−Frequency 65 or 100 kHz Current Mode Control with Adjustable Internal Ramp Compensation
● Adjustable Current Limit with External Resistor
● Frequency Foldback Down to 26 kHz and Skip−Cycle for Light Load Efficiency
● Frequency Jittering for EMI Improvement
● Less than 100 mW Standby Power @ High Line
● EPS 2.0 Compliant
● 7−Pin Package Provides Creepage Distance
● These are Pb−Free Devices PDIP−7 P SUFFIX CASE 626B MARKING DIAGRAMS 112xyPzzz AWL YYWWG 1 x = Specific Device Code 4 = NCP1124 6 = NCP1126 9 = NCP1129 y = A or B A = Latch B = Auto−recovery zzz = Frequency 65 = 65 kHz 100 = 100 kHz A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb−Free Package ORDERING INFORMATION See detailed ordering and shipping information on page 17 of this data sheet. Table 1.