The document introduces the LTC2927 as a versatile solution for managing complex supply voltage tracking or sequencing requirements in multiple-voltage electronics systems. It addresses design difficulties associated with distributed-power architectures where converters are scattered across board space.
Basic operation involves placing a single LTC2927 at the point-of-load to configure supplies to ramp up and down with various profiles using resistors and capacitors. The device allows slave supplies to track a master signal exactly or with different ramp rates, voltage offsets, time delays, or combinations thereof, without altering power supply control loop dynamics.
The LTC2927 provides a solution for tracking and sequencing multiple-voltage electronics systems in point-of-load applications.
Power supply stability remains unaffected because the device offsets output voltage without altering control loop dynamics.
The SDO output pulls low when the ON pin is below 1.23V.