Wide Operating Range, No RSENSE TM Step-Down DC/DC Controller With SMBus Programming

The LTC1909-8 is a synchronous Step-down switching Regulator controller with a digitally programmable output voltage. The output voltage is selected from one of two 5-bit settings programmed into internal Registers via a 2-wire SMBus I 2C Interface The Interface features safe- guards against invalid output voltages and allows the mi- croprocessor to turn the Regulator on and off. Valley cur- rent control delivers very low duty cycles without requiring a sense resistor. Operating frequency is selected by an external resistor and is compensated for variations in VIN and VOUT. By Linear Technology Corporation
LTC1909 's PackagesLTC1909 's pdf datasheet



LTC1909 Pinout, Pinouts
LTC1909 pinout,Pin out
This is one package pinout of LTC1909,If you need more pinouts please download LTC1909's pdf datasheet.

LTC1909 Application circuits
LTC1909 circuits
This is one application circuit of LTC1909,If you need more circuits,please download LTC1909's pdf datasheet.


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