Linear Technology LTC2925IUF#TRPBF

Description
The LTC2925 is a power supply tracking controller that provides a simple solution for power supply tracking and sequencing requirements. It can control the outputs of three independent supplies without inserting any pass element losses. For systems that require a fourth supply, or when a supply does not allow direct access to its feedback resistors, one supply can be controlled with a series FET. The LTC2925 also includes a power good timeout feature that turns off the supplies if an external supply monitor fails to indicate that the supplies have entered regulation within an adjustable timeout period.

Features
Flexible power supply tracking up and down
Power supply sequencing
Supply stability is not affected
Controls three supplies without series FETs
Controls an optional fourth supply with a series FET
Electronic circuit breaker
Remote sense switch compensates for voltage drop across a series FET
Supply shutdown outputs
FAULT output
Adjustable power good timeout
Available in narrow 24-lead SSOP and tiny 24-lead QFN packages

Applications
VCORE and V0 supply tracking
Microprocessor, DSP, and FPGA supplies
Servers
Communication systems