MIC2185YM-TR

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The MIC2185YM-TR is a DC-DC switching voltage regulator from Microchip Technology Inc., that features a high efficiency current mode architecture designed for regulation applications in the range of 4.5V to 24V input voltage. This voltage regulator is a highly versatile, PWM, self-oscillating, synchronous voltage regulator optimized for applications in battery-powered equipment, automotive and industrial applications.

The MIC2185YM-TR voltage regulator is a DC-DC buck-boost controller that can operate in multiple configurations depending on the desired output voltage and input voltage range. It can be configured to work as a buck regulator, a boost regulator, or a dual-input buck-boost regulator. The MIC2185YM-TR voltage regulator also features adjustable slope compensation, allowing for easy optimization and increased efficiency levels, as well as adjustable operating frequency and over-current protection. The MIC2185YM-TR is suitable for various topologies including a diode-capacitor clamp, flyback, two stage, and two diode based isolator circuits.

The MIC2185YM-TR voltage regulator utilizes a current mode architecture with fixed frequency. The controller starts in the buck mode, and depending on the output of the VDD pin, the part can transition to the boost mode based on the lower current threshold, or the buck-boost mode based on the higher current threshold, allowing for simple input voltage tracking or voltage step-down above Vout or buck-boost operation in the range of 4.5V to 24V input voltage. This feature allows the controller to react faster to the load than an analog solution, resulting in improved efficiency when compared to complex analog solutions.

The MIC2185YM-TR features an adjustable soft-start and adjustable slope compensation, which allows for quick and easy optimization for converters using the MIC2185YM-TR in a buck-boost application. The adjustable slope compensation allows the MIC2185YM-TR to increase overall efficiency by decreasing the switching losses and increasing the overall switching frequency. Furthermore, the MIC2185YM-TR voltage regulator has an adjustable minimum-on-time, which is used to ensure stability and is adjustable to optimize the time between the current valley and the regulated output voltage.

The MIC2185YM-TR voltage regulator is offered in a small SO-8 package, allowing for use in a variety of applications that require a high-efficiency DC-DC switching voltage regulator in a small form factor. The MIC2185YM-TR is ideal for applications such as small form factor systems, notebook power, and PoE systems. The MIC2185YM-TR voltage regulator is an ideal choice for cost competitive designs that require low-noise, high-efficiency DC-DC switching voltage regulation in a small form factor.

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