MAX8819AETI+

Power Management - Specialized Overview

The MAX8819AETI+ is a specialized Power Management IC (PMIC) from Analog Devices/Maxim Integrated, housed in a 28-pin TQFN-EP package. It integrates a charger and smart power selector for single-cell lithium-ion or lithium-polymer batteries. The device operates with an input voltage range of 2.4 V to 5.5 V and supports output voltages from 1 V to 24 V. It features a maximum output current of 500 mA and a maximum input current of 1 A. The operating supply voltage ranges from 2.6 V to 5.5 V, with a quiescent current of 1.33 mA. The component functions within a temperature range of -40°C to +85°C.

Power Management - Specialized Feature Summary

• Integrates a linear charger and smart power path controller for seamless source switching between AC adapters and USB ports.
• Includes an input current-limit switch to protect upstream power sources during high-load conditions.
• Supports charging of single-cell lithium-ion and lithium-polymer battery chemistries.

Power Management - Specialized Applications

• Handheld mobile devices
• Portable consumer electronics
• Battery-powered equipment requiring integrated power management

Power Management - Specialized Procurement Notes

Verify the specific suffix 'A' against the datasheet to confirm pinout and feature set, as variations exist within the MAX8819 family. Confirm RoHS compliance status through official documentation. Check current availability as distribution may be limited. Ensure the 28-WFQFN exposed pad footprint matches the PCB layout requirements for thermal dissipation.

Power Management - Specialized Selection Notes

Select this component when a compact solution combining battery charging and power path management is required. It is suitable for designs powered by standard USB or wall adapters. Consider the 500 mA output limit and 1 A input limit when sizing external components. Verify that the 2.4 V to 5.5 V input range aligns with the available power sources in the target application environment.

Power Management - Specialized Part Context

This part belongs to the MAX8819C series of specialized PMICs designed for portable applications. It consolidates multiple power management functions into a small 4mm x 4mm TQFN package. The series targets handheld devices where space efficiency and integrated functionality are critical design constraints.

Power Management - Specialized Replacement Considerations

The MAX8819CETI+ is a related variant within the same product family. Verify functional equivalence regarding pin configuration and electrical specifications before substitution.