MIC2104YML-TR

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Introduction

The MIC2104YML-TR is an efficient, high-precision DC/DC switching controller fabricated using advanced CMOS process technology. It is designed to provide a low noise control output with fast transient response. The MIC2104YML-TR combines robust features such as adjustable switching frequency, pulse-by-pulse current limit, and fault protection with a programmable soft-start. The device enables designers to implement a wide variety of switching mode power supplies (SMPS) for various applications.

Application Field

The MIC2104YML-TR is ideal for regulating the output of DC/DC buck converter power supplies. Its small package size and reduced surge current requirements limit the bill of materials cost and space requirements of the design. The device is also suitable for configuring power supplies for mobile and other low voltage DC systems with excellent efficiency and transient response characteristics. The MIC2104 is capable of driving buck, boost, and flyback converters. It is ideal for providing tight regulation for automotive, industrial, and computing applications.

Working Principle

The MIC2104YML-TR utilizes a fixed off-time architecture with a programmable soft-start and pulse-by-pulse current limit circuit. The device operates from an input voltage range of 4V to 18V, making it suitable for both low voltage and high voltage applications. An integrated PWM oscillator allows the switching frequency to be programmed from 200 kHz to 1 MHz, providing the designer with flexibility in selecting the power supply design conditions. The MIC2104YML-TR also supports a programmable dead-time feature, which allows the designer to optimize the power stage efficiency by slowing the switching of the upper and lower MOSFETS. It also features an on/off pin, which provides system power supply control, power on/off ramp, and remote shutdown control. Additionally, timing compensation is enabled for controlling of output voltage during load steps and dynamic regulation.

Conclusion

The MIC2104YML-TR is a highly efficient, flexible DC/DC switching controller that is suitable for designing DC/DC buck converters in mobile and other low voltage DC systems. It offers features such as adjustable switching frequency, pulse-by-pulse current limit, and fault protection with programmable soft-start. The device is also able to drive buck, boost, and flyback converters and provides tight regulation for automotive, industrial, and computing applications.

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