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DN464 - High Efficiency USB Power Management System Safely Charges Li-Ion/Polymer Batteries from Automotive Supplies
USB power manager/Li- Ion battery charger controls an LT3480 HV step-down regulator. The LTC4098’s ... current. The LTC4098 can extend the Bat-Track concept to an auxiliary regulator via the WALL and VC pins ... . When suffi cient voltage is present on WALL, Bat-Track takes Figure 1. LTC4098 USB Power Manager/Li ...