Analog Devices MAX8819 power management ICs (PMICs) are a complete power solution for MP3 players and other handheld applications. The Analog Devices MAX8819A, MAX8819B, and MAX8819C PMICs include a battery charger, step-down converters, and WLED power. These power management ICs feature an input current-limit switch to power the IC from an AC-to-DC adapter or USB port, a 1-cell lithium-ion (Li+) or lithium polymer (Li-Poly) charger, three step-down converters, and a step-up converter with serial step dimming for powering two to six white LEDs. All power switches for charging and switching the system load between the battery and external power is included on-chip. The MAX8819C offers a sequenced power-up/power-down of OUT1, OUT2, and then OUT3. MAX8819A/B/C devices feature the Analog Devices Smart Power Selector™ that uses AC-to-DC adapter power or limited USB power. Battery charge current and input current limit are independently set. Input power not used by the system charges the battery.
