PT1502 Overview
The PT1502 is a integrated power management unit for small handheld portable applications. It contains a single-cell Lithium Ion battery charger, a synchronous step-down DC-DC converter and 2 Low Dropout Regulators. It allows charging from both wall adapter and USB port.
PT1502 Key Features
- Integrated switch for USB/AC Adapter supply 120uA quiescent supply current(includes step-down DC-DC converters and two l
- Auto thermal regulated
- Charging current up to 1.2 A
- Charging current adjusted by external resistor Integrated step-down DC-DC converter
- Output voltage adjusted by external resistor
- Output current up to 800mA
- 1.5M Hz fixed switching frequency
- Over-current and over-temperature protection Integrated two low dropout regulators
- LDO1: output voltage 3.0V，up to 300mA output current
- LDO2: output voltage optional for 2.5V/