MIC2185BQS-TR

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The MIC2185BQS-TR is a PWM boost and buck converter controller designed to support a wide range of DC-DC applications from TO-220 and SOIC packages. As a voltage regulated power supply solution, the MIC2185 is a DC-DC controller capable of powering a wide range of fixed output voltages and current levels.

The MIC2185BQS-TR includes two operational modes, a boost mode and a buck mode. Boost mode allows the output voltage to be higher than the input voltage, whereas buck mode allows for the output voltage to be lower than the input voltage. The MIC2185BQS-TR also features adjustable frequency and optional integrated current-limit protection for both the boost and buck modes.

The MIC2185BQS-TR is widely used in portable devices and consumer electronics, automotive applications, battery powered systems, and medical equipment. It is widely used in portable devices such as laptops and tablets, as well as consumer electronics such as LCD/LED monitors and HDTVs. Additionally, the MIC2185BQS-TR is used in automotive applications such as in-vehicle electronics, backup cameras, and navigation systems. In battery-powered systems, the MIC2185BQS-TR is used to provide the necessary output voltages, while the integrated current limit provides extra protection. In medical equipment, the MIC2185BQS-TR is used to provide stabilized output voltages to critical systems.

The MIC2185BQS-TR is a highly configurable and programmable voltage regulation solution for a wide range of applications. The device features adjustable switching frequency, adjustable over-voltage protection, adjustable over-current protection, and adjustable soft-start. Additionally, the MIC2185BQS-TR has an output voltage tracking feature that allows for tight voltage regulation at the output by sensing and responding to errors between the output voltage and the reference voltage.

At the heart of the MIC2185BQS-TR is an advanced system-on-chip (SoC) that integrates a peak current control loop, an oscillator, a buck-boost regulator, an adjustable current limit circuit, a voltage error amplifier, and an adaptive second order low-pass filter. When the Boost/Buck input is applied, the controller senses the input voltage and adjusts the output voltage accordingly with the reference voltage. The peak current limit circuit ensures that the power stage is current limited and the output voltage is within a safe operating range.

The MIC2185BQS-TR also features a low-on-resistance Power MOSFET switch and an under-voltage lockout (UVLO) circuit. The MOSFET switch is designed to support high frequency switching with lower losses. Additionally, the under-voltage lockout circuit prevents the output from turning on in the event of a power failure or a short circuit.

In addition to its various features, the MIC2185BQS-TR also offers integrated fault protection. The device will enter a safety halt mode if it senses an over-current, over-temperature, or under-voltage condition. In this mode, the device will stop switching and will not restart until the fault is cleared.

In conclusion, the MIC2185BQS-TR is a highly programmable and versatile voltage regulator solution for a wide range of applications. With its adjustable frequencies, adjustable current limit circuit, adjustable soft-start, output tracking and integrated fault protection, the device is a great choice for any application requiring a reliable and efficient power supply solution.

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