SC1166

The SC1166 is designed as one kind of programmable synchronous DC/DC converter, dual low dropout regulator controller. It combines a synchronous voltage mode controller with two low-dropout linear regulators providing most of the circuitry necessary to implement three DC/DC converters for powering advanced microprocessors such as pentium II.

SC1166 has eight features. (1)Synchronous design. enables no heatsink solution. (2)95% efficiency (switching section). (3)5 bit DAC for output programmability. (4)On chip power good function. (5)Designed for intel pentium II requirements. (6)1.5V, 2.5V @ 1.5% for linear section. (7)1.265V+/-1.5% reference available. (8)1.30V to 2.05V+/-1.5%, 2.10V to 3.50V+/-2%. Those are all the main features.

Some absolute maximum ratings of SC1166 have been concluded into several points as follow. (1)Its Vcc to GND would be from -0.3V to 7V. (2)Its PGND to GND would be +/-1V. (3)Its BST to GND would be from -0.3V to +15V. (4)Its operating temperature range would be from 0°C to 70°C. (5)Its junction temperature range would be from 0°C to 125°C. (6)Its storage temperature range would be from -65°C to 150°C. (7)Its lead temperature soldering 10 seconds would be 300°C. (8)Its thermal impedance junction to ambient would be 80°C/W. (9)Its thermal impedance junction to case would be 25°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 SC1166 are concluded as follow. (1)Its supply voltage would be min 4.5V an dmax 7V. (2)Its supply current would be typ 8mA and max 15mA. (3)Its load regulation would be 1%. (4)Its line regulation would be typ 0.5%. (5)Its current limit voltage would be min 55mV and typ 70mV and max 85mV. (6)Its oscillator frequency would be min 125kHz and typ 140kHz and max 160kHz. (7)Its VID source current would be min 1uA and typ 10uA. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!