MIC5191BMM-TR

MIC5191BMM-TR Linear Regulator Controller

The MIC5191BMM-TR is a high-performance linear regulator controller designed to provide precision power conversion and exceptional power performance in a wide variety of applications. This regulator controller is capable of controlling up to 2.85 A of output current and features a precision voltage reference that provides excellent output voltage accuracy and thermal tracking performance.

The MIC5191BMM-TR is ideal for low-cost, high-efficiency, high-power-density applications. The device utilizes both a low-noise charge-pump topology and an innovative, low power buck/boost topology to provide excellent line regulation, load regulation, and transient response. This regulator controller also features an operational amplifier with low power dissipation making it ideal for applications where size and power consumption are critical.

Working Principle

The MIC5191BMM-TR regulator controller uses a buck/boost converter topology to regulate the output voltage. This converter topology uses a transistor switch to regulate the output voltage by converting a peak voltage of the input voltage to a regulated output voltage. This is done by controlling the duty cycle of the switch based on the output voltage error. The feedback voltage is compared to the reference voltage to determine the switch duty cycle, resulting in a regulated output voltage.

Application Field

The MIC5191BMM-TR is designed to provide a high-performance, cost-effective solution for a variety of applications, such as handheld and portable electronics, industrial instrumentation and control systems, automotive applications, washing machines, air conditioners, and voltage regulators. It is also suitable for use in other applications that require low power and excellent line regulation and load regulation performance.

The MIC5191BMM-TR can be used in a wide variety of power management applications, including power supplies, point-of-load converters, battery chargers, DC-DC converters, and VRM applications. The controller can also be used to regulate the output voltage of various AC-DC power conversion stages, such as flyback, buck-boost, and charge pump topologies. It is also suitable for driving switching regulators and pulse-width-modulation (PWM) controllers.

Conclusion

The MIC5191BMM-TR is a high-performance linear regulator controller designed to provide precision power conversion, exceptional power performance, and low power dissipation in a wide range of applications. The device utilizes a low-noise charge-pump topology and an innovative buck/boost converter topology to provide excellent line regulation, load regulation, and transient response, making it ideal for low-cost, high-efficiency, high-power-density applications. The MIC5191BMM-TR can be used to regulate the output voltage of a variety of power management and AC-DC conversion stages, making it a versatile and cost-effective solution for a range of applications.