MIC38C43-1BM

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MIC38C43-1BM Application Field and Working Principle

The MIC38C43-1BM belongs to a family of high-performance, Phase-Locked Loop (PLL) controller-based DC-DC switching controllers. The MIC38C43-1BM is designed to provide advanced features and performance to a wide variety of high-density power applications, including Point of Load (POL) non-isolated DC-DC buck regulations, hot-swap, and high-current Point of Load (POL) power supplies. The single-chip, low-cost solution with Integrated Feature Set (IFS) is ideally suited for powering microprocessors, ASICs and DSPs in servers and storage.

The MIC38C43-1BM is a highly integrated, space-saving solution that provides a powerful combination of features, performance, and excellent transient response. Its high-performance features include Adjustable Output voltage, over-voltage protection, precision current-limit, fast transient response, and low ripple. The MIC38C43-1BM also offers an industry-recognized power-loss protection feature to ensure a safe shutdown of the system in the event of an unexpected power surge or brown-out.

Application Field

The MIC38C43-1BM is an ideal solution for providing an adjustable output voltage and precision current limit in high-density Point of Load (POL) non-isolated and hot-swap power supplies. It can be used to power microprocessors, ASICs and DSPs in servers, storage and communications infrastructure. The MIC38C43-1BM features high-performance features, such as adjustable output voltage, over-voltage protection, fast transient response and low ripple, as well as industry-recognized power-loss protection. The MIC38C43-1BM is ideal for applications that require an adjustable output voltage, fast transient response, and low ripple.

Working Principle

The MIC38C43-1BM is based on a PLL controller that uses a clock input to lock the output voltage and current to the internal reference voltage. The internal PLL controller uses a feedback loop to ensure that the output voltage is regulated to the desired level. The output voltage is adjusted via a digital input or external resistor. The output voltage is adjustable from 0.4 to 3.3V, and the output voltage is accurate up to 1%. The precision current limit ensures that the maximum current drawn from the output does not exceed the specified limit, which prevents circuit damage.

The MIC38C43-1BM offers high efficiency, fast transient response and low ripple. The Power Loss Protection (PLP) feature automatically shuts down the device in case of an unexpected power surge or brown-out. The Power Good output indicates that the output voltage is within the specified range. The MIC38C43-1BM also features an adjustable soft-start capability and a synchronizable clock output.

The MIC38C43-1BM is a highly integrated, cost-effective solution that offers a combination of features, performance, and excellent transient response. It is designed to provide reliable, advanced features and performance to a wide variety of high-density power applications.

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