MIC2184BM-TR

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The MIC2184BM-TR is a two-phase, synchronous buck diodes, transistor and MOSFET regulators. The device combines soft-start, discrete external control and an active voltage control loop with an external transistor and MOSFET features. This device has been specifically developed to provide excellent energy efficiency, reliable voltage regulation, high input voltage operation and robust performance. The MIC2184BM-TR is a high-performance, low-air-on-time regulator controller with digital frequency control that provides higher system efficiency, improved performance, and is fully compatible with digital voltage control (DVC) systems.

Application field

The MIC2184BM-TR is primarily intended for the design of high-performance, late-stage voltage converters, especially those used in notebook and desktop PCs, servers and graphics cards. The MIC2184BM-TR could also be used for a wide range of Power Management and Motor Control applications.

Working Principle

The MIC2184BM-TR is a digitally-controlled, two-phase, synchronous buck diodes regulation controller. The device uses a control loop with an external transistor and MOSFET, which together provide excellent energy efficiency, reliable voltage regulation, and high input voltage operation. The MIC2184BM-TR uses two synchronously switched-mode generators, each with two external output transistors. When enabled, each generator is powered by the input voltage and the applicable feedback voltage.

The active voltage control loop adjusts a reference voltage (VREF) relative to the feedback voltage and a linear current-sense amplifier to balance the output voltage. The reference voltage is compared to the feedback voltage to determine the duty cycle of the PWM controller. When the duty cycle of the controller is equal to or greater than its minimum on-time, the output transistors are enabled and the regulators are enabled. When the duty cycle is set below the minimum on-time, the output transistors are disabled and the regulators are disabled.

The MIC2184BM-TR also includes an active voltage control loop with an external transistor and MOSFET features. The voltage control loop is used to track the feedback voltage, balance the output voltages to the desired levels, and reduce the output noise and limit-cycle disturbance. The integrated resistor-based substrate bias network is used to reliably adjust the linear current-sense amplifier gain. The MOSFET-based controller adjusts the voltage reference voltage and the output voltage using a single resistor.

The MIC2184BM-TR is designed to provide high-performance voltage regulation for a wide range of light loads and heavy loads. The adjustable frequency range is optimized for the system constraints. The MIC2184BM-TR is designed to work within a wide-input voltage range and provides protection against over-voltage, under-voltage, short-circuit, and over-temperature conditions.

Conclusion

The MIC2184BM-TR is a powerful, highly-efficient voltage regulator capable of providing reliable, high-performance voltage regulation for a wide range of light and heavy loads. Its integrated features provide improved energy efficiency, improved voltage regulation, and flexible frequency control. The device is fully compatible with digital voltage control systems, ensuring high-efficiency operation even at light loads. The MIC2184BM-TR is an ideal solution for the design of high-performance, late-stage voltage controllers in notebooks, PCs, servers, and graphics cards.

The specific data is subject to PDF, and the above content is for reference