Programmable Synchronous Dc/dc Converter With Low Dropout Regulator Controller

The SC1172 SC1173 combines a synchronous voltage mode controller with a low-dropout linear Regulator providing most of the circuitry necessary to implement two DC/DC converters for powering advanced Microprocessors such as Pentium II (Klamath) or Deschutes. The SC1172 SC1173 switching section features an integrated 5 bit D/A Converter pulse by pulse current limiting, integrated power good signaling, and Logic compatible shutdown. The SC1172 SC1173 switching section operates at a fixed frequency of 200kHz, providing an optimum compromise between size, efficiency and cost in the intended application areas. The integrated D/A con- verter provides programmability of output voltage from 2.0V to 3.5V in 100mV increments and 1.30V to 2.05V in 50mV increments with no external components. The SC1172 SC1173 linear section is a high performance positive voltage Regulator design for either the GTL bus supply at 1.5V SC1172 or an adjustable output SC1173 . The output of the linear Regulator CAN provide up to 5A or more with the appropriate external MOSFET By Semtech Corporation
SC1172 's PackagesSC1172 's pdf datasheet
SC1173 SO

SC1172 Pinout, Pinouts
SC1172 pinout,Pin out
This is one package pinout of SC1172,If you need more pinouts please download SC1172's pdf datasheet.

SC1172 Application circuits
SC1172 circuits
This is one application circuit of SC1172,If you need more circuits,please download SC1172's pdf datasheet.

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