MAX17523ATE+T

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Power Management Integrated Circuit (PMIC) is a complex device for various types of applications in different domains such as consumer electronics, industrial, automotive, wearables, and healthcare applications. The system\'s power management range from battery charging, battery monitoring, thermal protection, and device specific power needs. This article will focus on the MAX17523ATE+T application field and working principle.

The MAX17523ATE+T is a synchronous step-down switching regulator from Maxim Integrated, and it is specially designed for low quiescent current, high efficiency applications. It operates with input voltages up to 60V and provides a fixed output voltage down to 0.9V at continuous currents up to 10A. It is designed to support a wide range of flyback, buck-boost, and standard buck converter applications.

The MAX17523ATE+T is an integrated, high efficiency, and wide input range switching regulator. Its operation is based on pulse-width modulation (PWM) and Pulse-Frequency Modulation (PFM) control modes. In PWM mode, the duty cycle is determined by an external loop compensator and an external reference. In the PFM mode, the output pulse-width is determined by the on-chip controller and the external feedback network. The device supports constant on-time control for high accuracy and low switching noise, and also collects thermal information for over-temperature protection. To reduce the switching noise, it provides built-in output every 10 μs.

The integrated device comes with a power stage composed of power MOSFETs, one driver for two output MOSFETs, and a high voltage voltage regulator. The integrated device also contains an enable pin for an active low enable/shutdown input. The device also includes a mode pin that serves as a faul or a power good signal to indicate an out-of-regulation voltage.

The built-in output voltage can be adjusted quickly using a DAC pin or with a resistive divider. The output voltage can be adjusted with a range of 0.9V to 39V and is set to the desired value by pulling down the same pin respectively. The output voltage can also be adjusted with the use of pulse-switching (PSW) to increase the current output capability.

The MAX17523ATE+T device provides low noise, high efficiency, and low output voltage. It supports a wide input voltage range and can provide up to 10A of current. It also supports constant-on-time control algorithm for high accuracy and low switching noise. It includes a power stage consisting of power MOSFETs and a high-voltage regulator for providing low quiescent current and high efficiency. The device also provides over-temperature protection and fault detection for fault protection.

The MAX17523ATE+T power management IC is ideal for mid-to-high power applications requiring fast transient response and output voltage control. Its applications can be found in fast transient AC/DC power supplies, wind power systems, automotive supplies, servers and industrial electronics equipment, converters, and large-scale solar energy systems.

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