LTC3586EUFE#PBF

LTC3586 is a highly integrated power management and battery charger IC for Li-ion/polymer battery applications. Its high efficiency current limited switching Power path manager with automatic load prioritization, battery charger, ideal diode, and four synchronous switching regulators (two bucks, one buckboost and one boost). Designed specifically for USB applications, this device’s switching power manager automatically limits input current to a maximum of either 100mA or 500mA for USB applications or 1A for adapter-powered applications. Unlike linear chargers, this device's switching architecture transmits nearly all of the power available from the USB port to the load with minimal loss and heat which eases thermal constraints in small places. It is used in application such as digital still cameras, HDD-based MP3 players, PDAs, GPS, PMPs, other USB-based handheld products etc.

• Input supply voltage range is 4.35V to 5.5V
• Programmable USB or wall current limit (100mA/500mA/1A)
• Internal 180Mohm ideal diode plus external ideal diode controller powers load in battery mode
• VBUS quiescent current is 7mA typical at (1x mode, IVOUT = 0mA, TA = 25°C)
• Switching frequency is 2.25MHz typical at (TA = 25°C, VBUS = 5V)
• Soft-start time is 0.375ms typical at (TA = 25°C, VBUS = 5V)
• Maximum boost duty cycle 91% typical at (TA = 25°C, VBUS = 5V)
• Dual high efficiency buck DC/DCs (400mA IOUT), high efficiency buck-boost DC/DC (1A IOUT)
• High efficiency boost DC/DC (800mA IOUT)
• Operating temperature is -40°C to 85°C, package style is 38-lead plastic QFN

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party