SC1131CT-XY

The SC1131CT-XY is designed as a combination switching controller and low dropout regulator which incorporates a high current low dropout linear regulator section together with a switching buck mode controller. This unique combination is well suited for high current low voltage power supply applications such as the intel pentium P55, AMD K6 and the Cyrix M2 processors.

SC1131CT-XY  has six features. (1)85% typical efficiency for switching section. (2)Ground tab. (3)1.5V, 2.5V ot 3.3V at 1% for linear. (4)Thermal shutdown. (5)Internal short circuit protection. (6)7 pin TO-220 package. Those are all the main features.

Some absolute maximum ratings of SC1131CT-XY  have been concluded into several points as follow. (1)Its Vin to GND would be from -0.3V to 7V. (2)Its Vcc to GNd would be from -0.3V to 15V. (3)Its junction operating temperature range would be from 0°C to 125°C. (4)Its storage temperature range would be from -65°C to 125°C. (5)Its lead soldering temperature would be 260°C 10 seconds. (6)Its thermal resistance junction to case would be 2°C/W. (7)Its thermal resistance junction to ambient would be 50°C/W. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of SC1131CT-XY  are concluded as follow. (1)Its total quiescent current would be typ 15mA and max 25mA. (2)Its reference voltage would be min 1.238V and typ 1.25V and max 1.263V. (3)Its load regulation would be max 1%. (4)Its line regulation would be typ 0.5%. (5)Its MOSFET driver source voltage would be typ 1.6V. (6)Its MOSFET driver sink voltage would be typ 1.1V. (7)Its oscillator frequency would be min 180KHz and typ 200KHz and max 220KHz. (8)Its duty cycle maximum would be min 90% and typ 95%. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!