TPS65471 integrates a Li-ion linear charger, power path management, four LDO regulators, 4.25-V synchronous boost converter and 4.25-V LDO regulator, three LED drivers and one motor driver.
With the power path circuitry, USB-port, AC-DC adapter and Li-ion battery power can be switched seamlessly as the power source of 3.2-V LDO output regulators. This prevents instability in the system.
The TPS65471 charger automatically selects the USB port or the AC-DC adapter.
The EN_VLDO digital input is used to turn the output of VLED4P25, VLD02 and VLD04 on or off.
The EN_VLDO3 digital input is used to turn the output of VLDO3 on or off.
The TPS65471 is available in a 40-pin QFN package with PowerPAD™.
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