MAX8819AETI+

The MAX8819AETI+ is a PMIC with integrated chargers and smart power selector in 28 pin TQFN package. This is a complete power solution for MP3 players and other handheld applications. The IC includes a battery charger, step-down converters and WLED power. It features 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. No external MOSFETs are required. Analog Devices Smart Power Selector™ makes the best use of AC to DC adapter power or limited USB power. Typical application includes MP3 players, portable GPS devices, low power handheld products, cellular telephones, digital cameras, handheld instrumentation and PDAs.

• DC voltage range from 4.1V to 5.5V
• Operating temperature range from -40°C to 85°C
• Smart Power Selector, operates with no battery present, 4.35V system voltage
• 2MHz 3 step down converters, 95% peak efficiency, 100% duty cycle
• ±3% output accuracy over load/line/temperature, 2 to 6 series WLED driver with dimming control
• Active low REG1 reset output
• Short circuit/thermal overload/input under voltage/overvoltage protection
• Total solution size is less than 90mm²

Applications

System Monitoring, Portable Devices, Consumer Electronics

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