LTC3589IUJ-PBF(RevB) 데이터 시트보기 (PDF) - Linear Technology

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LTC3589IUJ-PBF
(Rev.:RevB)

8-Output Regulator with Sequencing and I2C

Linear Technology 

LTC3589

APPLICATIONS INFORMATION

to select between run and standby voltages and using

minimal software overhead to set the overdrive voltage

in I2C command registers.

The default DAC reference value in all xxBTVx registers

is 0x19. This accommodates i.MX processors and others

requiring an overdrive voltage. The value can be increased

up to 0x1F for overdrive or supply margining above the

nominal run voltage. Once programmed into the I2C com-

mand registers xxBTVx two voltage outputs are selected

by the VSTB pin. All voltage levels and changes are fully

controllable using the I2C serial port.

OMAP3 and DaVinci Processor Support

The OMAP3 family of ARM processors has similar require-

ments to the processors described above. The LTC3589 I2C

control can fully accommodate the smart reflex dynamic

voltage control with proper embedded software drivers

tailored to the LTC3589 register mapping. The LTC3589

demo board demonstrates configuring and dynamically

slewing and sequencing the outputs using I2C control. The

same provisions can be incorporated into embedded soft-

ware drivers for the OMAP3 or any other target processor.

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