Power Manager IC
Fri, 03/28/2003 - 3:52am
The LTC4410 is a USB power manager IC in a ThinSOT package, which enables simultaneous battery charging and system operation of a Li-Ion powered USB peripheral from a USB host. Compared to conventional methods, the LTC4410 powers the system load directly from USB's 5 V supply instead of the battery's 3.6 V terminal, allowing the battery to charge up to 39% faster. By managing the total current consumption, the IC permits a 1-cell Li-Ion battery powered USB peripheral to charge its battery and operate its system circuitry without exceeding a user set current limit.