MAX6439UTEHRD3+T

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Power Management Integrated Circuit (PMIC) is an integral part of electronic systems. It is a key component for systems performance, reliability, and operational accuracy by regulating the voltage and current in the electrical power delivery system. PMICs control and monitor a system’s power draws and increase its energy efficiency. The MAX6439UTEHRD3+T is a compact, adjustable current-limited, low quiescent current PMIC optimized for battery-powered applications. It offers improved efficiency, extremly fast response time, current-limited protection, along with programmable voltage and temperature thresholds.

MAX6439UTEHRD3+T Application Field

The MAX6439UTEHRD3+T PMIC is designed for wireless applications, such as low-power Bluetooth Low Energy (BLE) applications, wireless headphones, and other battery-powered devices. It features high efficiency, low quiescent current, high-peak current, and fast-transient response time. Additionally, the MAX6439UTEHRD3+T includes a voltage regulator with adjustable output voltage tha helps reduce the power supply design complexity when high system noise is expected. Some other features of the MAX6439UTEHRD3+T include low shutdown current, wide input voltage range, low dropout (LDO) performance, and protection for devices against undervoltage lockout (UVLO).

MAX6439UTEHRD3+T Working Principle

The MAX6439UTEHRD3+T PMIC consists of a current-limited charge pump, a switching regulator, and voltage regulators. The current-limited charge pump is designed to phone or tablet internal power requirements. It uses very low quiescent current, which makes it ideal for battery-powered applications. The switching regulator is designed to provide lower voltages at higher currents while keeping the current consumption low even at light load conditions. The voltage regulators included in the MAX6439UTEHRD3+T are adjustable, allowing the user to tailor the output voltage for specific applications. Additionally, the voltage regulators have an internal UVLO that protects the device from damage due to a sudden drop in input supply voltages.

The MAX6439UTEHRD3+T PMIC also features programmable voltage and temperature thresholds which help to improve system efficiency and protection. The voltage threshold enables the device to raise the output voltage when the battery is near empty, thus increasing the protection for the system. Additionally, the temperature threshold helps reduce the power supply current if the temperature of the system rises above a certain level, allowing for improved system reliability.

Finally, the MAX6439UTEHRD3+T PMIC also has freedom from latch-up implementations which make it suitable for most safety and reliable operations. Additionally, its low quiescent current helps reduce battery drain, and its high-efficiency charging capabilities extend battery life.

Conclusion

The MAX6439UTEHRD3+T PMIC is a compact, adjustable current-limited, low quiescent current PMIC designed to make battery-powered applications more efficient, reliable, and safe. It features a current-limited charge pump, a switch regulator, adjustable voltage regulators, programmable voltage and temperature thresholds, and freedom from latch-up implementations. All of these features make the MAX6439UTEHRD3+T PMIC an excellent choice for wireless applications such as low-power Bluetooth Low Energy (BLE) applications, wireless headphones, and other battery-powered devices.

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