Maxim Integrated MAX8819A/B/C Power Management ICs
Maxim Integrated MAX8819 power management ICs (PMICs) are a complete power solution for MP3 players and other handheld applications. The Maxim Integrated 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 battery and external power are included on-chip. The MAX8819C offers a sequenced power-up/powerdown of OUT1, OUT2, and then OUT3. MAX8819A/B/C devices feature the Maxim Integrated Smart Power Selector™ that makes the best use of 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.