MAX5059AUI-T

MAX5059AUI-T Application Field and Working Principle

The MAX5059AUI-T is a precision low-dropout adjustable voltage regulator, specifically designed as a power supply management solution for applications including portable communications and computing. It features a low ground current, excellent line and load regulation, arc protection, and short-circuit protection.

By constant-voltage and current-limiting protection, the MAX5059AUI-T voltage regulator provides a stable power supply for sensitive systems that are exposed to harsh environments. It provides a constant output voltage at a pre-defined current limit, without having to continuously monitor the load current. The overload protection feature of the MAX5059AUI-T protects the system, in case of excessive load or transient. The device also features a foldback current limit, which reduces the current limit in case of intensive current sensing, to maintain a stable power supply.

Key Features

• Precision Low Dropout: The MAX5059AUI-T has a low dropout voltage, ensuring that the application is able to operate, even at low input voltage levels.
• Arc Protection: The MAX5059AUI-T voltage regulator has an integrated arc protection feature, which protects the system by shutoff the input voltage when an excessive load is detected.
• Short-Circuit Protection: The MAX5059AUI-T voltage regulator has an integrated short-circuit protection feature, which protects the system by shutting off the output voltage when an excessive load is detected.
• Power Management: The MAX5059AUI-T voltage regulator is able to manage the current and voltage settings of an application in order to maintain system stability.
• Foldback Current Limit: The MAX5059AUI-T voltage regulator features a foldback current limit, which reduces the current limit in case of intensive current sensing, to maintain a stable power supply.

Applications

The MAX5059AUI-T adjustable voltage regulator is designed for use in a variety of portable communications and computing applications, including:

• Tablets
• Smartphones
• Digital cameras
• Video game consoles
• Personal digital assistants (PDAs)

Working Principle of the MAX5059AUI-T

The MAX5059AUI-T adjustable voltage regulator uses a regulated, stabilized regulator with a current limiter. The voltage regulator works by comparing the reference voltage at its output, with the actual output voltage. The regulator adjusts the output voltage in order to bring it to the reference voltage. The current limiter allows the regulator to maintain the output voltage even when the load current increases up to the limit set. The foldback current limit limits the current, in order to protect the application, when the current sensing is too high.

Furthermore, the MAX5059AUI-T has an integrated arc protection, which protects the system by shutting off the input voltage when an excessive load is detected. It also has an integrated short-circuit protection, which shuts off the output voltage if an excessive load is detected.

Conclusion

The MAX5059AUI-T adjustable voltage regulator is designed for use in portable communications and computing applications, providing a regulated, stabilized, and current-limited power supply. With its integrated arc protection and short-circuit protection, the MAX5059AUI-T is able to protect sensitive systems that are exposed to harsh environments. The current limitation feature of the MAX5059AUI-T also prevents overload and transient, ensuring a stable and reliable power supply while operating under intensive conditions.