The LTC1473 provides a power management solution for single and dual battery notebook computers and other portable equipment. The LTC1473 drives two sets of back-to-back N-channel MOSFET switches to route power to the input of the main system switching regulator. An internal boost regulator provides the voltage to fully enhance the logic level N-channel MOSFET switches. The LTC1473 senses current to limit surge currents both into and out of the batteries and the system supply capacitor during switch-over transitions or during fault conditions. A user-programmable timer monitors the time the MOSFET switches are in current limit and latches them off when programmed time is exceeded. A unique "2-diode mode" logic ensures system start-up regardless of which input receives power first. Applications * Notebook Computers * Portable Instruments * Handi-Terminals * Portable Medical Equipment * Portable Industrial Control Equipment * Power Path Management for Systems with Multiple DC Sources * All N-Channel Switching to Reduce Power Losses and System Cost * Switches and Isolates Sources Up to 30V * Adaptive High Voltage Step-Up Regulator for N-Channel Gate Drive * Capacitor Inrush and Short-Circuit Current Limited * User-Programmable Timer to Limit Switch Dissipation * Small Footprint: 16-Pin Narrow SSOP https://elecena.pl/product/250858/dual-powerpath-switch-driver 2007-03-02 https://elecena.pl/product/250858/dual-powerpath-switch-driver 2018-02-04 https://elecena.pl/product/250858/dual-powerpath-switch-driver 2025-01-18