资 源 简 介
The LTC®3586 is a highly integrated power managementand battery charger IC for Li-Ion/Polymer battery applicaTIons.It includes a high efficiency current limited switchingPowerPath manager with automaTIc load prioriTIzaTIon, batterycharger, ideal diode, and four synchronous switchingregulators (two bucks, one buck-boost, and one boost).Designed specifically for USB applications, the LTC3586’sswitching power manager automatically limits input currentto a maximum of either 100mA or 500mA for USBapplications or 1A for adapter-powered applications.Unlike linear PowerPath controllers, the LTC3586’s switchinginput stage transmits nearly all of the 2.5W availablefrom the USB port to the system load with minimal powerwasted as heat. This feature allows the LTC3586 to providemore power to the application and eases the constraint ofthermal budgeting in small spaces. The two buck regulatorscan provide up to 400mA each, the buck-boost candeliver 1A, and the boost delivers at least 800mA.The LTC3586 is available in a low-profi le (0.75mm) 38-pin4mm × 6mm QFN package.
