MAX764ESA+T

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The MAX764ESA+T belongs to the category of PMIC – Voltage Regulators – DC DC Switching Regulators. It is a monolithic buck/boost regulator designed for use in automotive or other high-temperature environments. The device employs a synchronous rectification technique to achieve low dropout with excellent load-transient response and is capable of supplying 1A of continuous output current.The MAX764ESA+T includes an on-board 160kHz switching frequency oscillator, an adjustable soft-start feature, a low-noise PWM comparator, a high-side N-channel MOSFET gate driver, and a low-side N-channel MOSFET. The regulation loop is internally compensated, and provides load transient response similar to that of a linear regulator.The MAX764ESA+T is made with an advanced BiCMOS process, providing low quiescent current and excellent power efficiency. The maximum frequency is user programmable from 100kHz to 200kHz via a resistor divider. The device also features a power-on-reset circuit, which holds the output voltage in a low impedance state during the start-up period.The MAX764ESA+T is versatile, with adjustable output voltages from 4.5 V to 16 V, allowing it to be used in a wide range of applications. Automotive and industrial applications, such as battery powered electronic equipment and DC-DC converters, can benefit from its combination of compact packaging, good line and load regulation, and low power requirements.The device\'s working principle is based on the buck converter topology. The basic components are a boost/buck converter and a regulating controller. The boosting part consists of an inductor, power switch, and output capacitors, which store energy and filter the output voltage. The buck part consists of a diode, catch diode, and reservoir capacitor, which buffer the voltage and prevent voltage spikes during the switching transitions.The regulating controller is responsible for the regulation of the output voltage. It regulates the output voltage by comparing it to an internally generated reference voltage. When the actual output voltage value is lower than the desired voltage, the converter operates in boost mode and when the actual output voltage is higher than the desired value, the converter operates in buck mode. The controller then adjusts the operating frequencies and duty cycles of the power switches to match the desired voltage.The MAX764ESA+T is an ideal solution for small form-factor designs, such as automotive power supplies, as well as other heavy-duty applications. It provides high efficiency, low noise, and excellent load-transient response, making it a reliable source of power in harsh environments. With its adjustable output voltage and smooth regulation, it is the ideal DC-DC converter for a wide range of applications.

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