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PT1505
White LED Driver & PMU for Portable Applications
GENERAL DESCRIPTION
The PT1505 is an integrated power management unit and white LED driver for small handheld portable applications. It contains a single-cell Lithium Ion battery charger, a synchronous step-down DC-DC converter, 2 Low Dropout Regulators and a step-up DC-DC converter designed for driving up to 8 white LEDs in series. It allows charging from both wall adapter and USB port. When charging from wall adapter, the PT1505 increases the charging current automatically. The battery charger is a highly integrated charging management device targeted at space limited portable applications.