MIC4575-3.3BU TR

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The MIC4575-3.3BU TR is a high-speed logical circuit that offers adjustable output currents up to 2.5A and up to 3.3V. It\'s an industry-standard, monolithic, step-down switching regulator with a switching frequency of up to 1.1MHz. It is a synchronous buck regulator that is ideal for applications that require compact boards, low ripple, and fast transient response. It is a type of DC/DC switching regulator that use pulse width modulation (PWM) to regulate their outputs.

The MIC4575-3.3BU TR includes a single override intelligent control block that can be used for clock synchronization, output voltage levels, and on/off operations. The control block allows for greater flexibility in applications like microprocessors, motor controls, and lighting control systems. The chip also allows for enhanced efficiency and module packaging, enabling it to easily fit in a variety of system form factors.

It features programmable input voltage range that spans from 4.5V to 28V as well as an adjustable output voltage. The internal voltage reference accuracy is accurate within ±0.8%. It also provides thermal shutdown, overvoltage protection, and pulse-skip mode operation. The input and output capacitors provide clean supply voltages and excellent power supplies filter characteristics. The chip propels continuous currents up to 1.4A and peak currents up to 1.5A.

The MIC4575-3.3BU TR also offers adjustable frequency from 200kHz to 1.1MHz, and 95% efficiency under light load conditions. The soft-start period is also adjustable, allowing for faster startups. The chip is equipped with a -40°C to +85°C junction temperature range, <0.5µA standby current, and output voltage accuracy of ±2%.

The MIC4575-3.3BU TR is specifically designed to be used in a wide range of applications, including notebook and tablet PCs, automotive-grade infotainment systems, and battery-powered handhelds. It is also suitable for industrial control systems, mobile battery chargers, and smart-grid applications.

The MIC4575-3.3BU TR utilizes a fixed frequency, constant on-time control scheme to regulate the output voltage. The constant on-time control refers to the ability of the regulator to constantly monitor the input voltage and maintain a consistent on-time for switching cycles. This further helps to optimize peak efficiency as well as minimize EMI. It also operates in either analog or PWM mode, allowing it to work in a multitude of applications.

The MIC4575-3.3BU TR features independent control blocks for –enable, under voltage lockout, output voltage soft start, clock synchronization, and output voltage regulation. With these features, it can be used in a wide range of applications without sacrificing performance. The MIC4575-3.3BU TR is a reliable and efficient DC/DC switching regulator device, delivering outstanding performance in a very small package.

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