MIC29503BT

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The MIC29503BT is a linear voltage regulator that is part of the PMIC - Voltage Regulators - Linear category. It is an adjustable, high-efficiency, low-dropout, low-noise, linear regulator that has been designed for high-power applications such as computing, networking, automotive, and communications applications.

The typical applications of the MIC29503BT include point-of-load (PoL) converters, DC/DC converters, and voltage regulator modules (VRMs). In addition to its various adjustable voltage output versions, MIC29503BT holds a temperature range of -20°C to 125°C with a maximum power dissipation of 3W.

The MIC29503BT is available in three versions: voltage adjust, voltage proportional, and current adjust. The voltage adjust version allows the voltage output to be adjusted with a single external component. The voltage proportional version adjusts the output voltage with respect to an external reference voltage. The current adjust version monitors and adjusts the output current with respect to a target value.

The MIC29503BT also offers short-circuit protection and current limiting. Its short-circuit protection is triggered when the output of the device exceeds the settable current limiting threshold. When current limiting is triggered, the protection circuit disconnects the load from the power supply and reduces the load current to a safe value. The current limiting feature is programmable with an external resistor.

The MIC29503BT features a low quiescent current of 18μA typical, at no load 20V input, and 2.5V output, making it an ideal solution for energy-sensitive applications. The dropout voltage is well below 1V and the output voltage accuracy is ±2.5%. The low output noise (100μVRMS) not only increases system stability, but also enables reduction of the size of external output capacitor.

The MIC29503BT also comes with an active faceplate current which allows to minimize the number of components in the load circuit. It offers good EM immunity and meets the requirements of the European EMC Directive 2004/108/EC. In addition, the device has a thermal shutdown function which is triggered when the junction temperature reaches 150°C.

The MIC29503BT linear voltage regulators are also RoHS-compliant and halogen free, making them a great fit for high-performance applications in a wide range of power-sensitive applications.

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