MIC5209-3.3BM

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Today’s electronic systems need an efficient, cost-effective and high performance power management solution which can provide multiple required voltages. The MIC5209-3.3BM belongs to a family of linear voltage regulators which can provide voltage conversion between 3.3V and 3.5V output voltage levels while providing a high power solution with very low noise. It is designed for use in both industrial and consumer applications including mobile phones, data storage devices, home appliances, automotive and industrial circuitry.

The MIC5209-3.3BM is a monolithic three-terminal linear voltage regulator with an integrated power MOSFET which is capable of delivering up to 1.4A of output current. It is basically a voltage regulator which uses a linear control element to regulate the output voltage. The control element can be a transistor, a zener diode or an operational amplifier. Typically, the linear voltage regulator consists of an output voltage regulator, a reference voltage source, and an error amplifier. The main function of the error amplifier is to compare the output voltage with the reference voltage which is provided by the reference voltage source. If the output voltage is lower than the set reference voltage, then the error amplifier signals the voltage regulator to increase its output voltage. On the other hand, if the output voltage is higher than the desired voltage, then the error amplifier signals the voltage regulator to decrease its output voltage level.

The MIC5209-3.3BM additionally provides Comprehensive protection features such as an adjustable overcurrent protection, short circuit protection, under-voltage lockout with fast turn-on time and thermal shutdown. The overcurrent protection feature allows the user to set the maximum current for the output voltage and the device will automatically shut down in order to prevent any damage if the current exceeds the set value. The short-circuit protection feature helps in protecting the device from damage due to sudden change in load conditions. The device also provides an adjustable under-voltage lockout feature which is used to prevent the device from operating in case the input voltage falls below a set voltage level. Lastly, the device provides a thermal shutdown feature which helps in protecting the device from thermal damage in case the device operates at higher than specified temperature.

The MIC5209-3.3BM has been designed to operate in an environment with an operating temperature range of -40°C to +125°C. It features a wide input voltage range of 2.9V-5.5V and three fixed output voltage options (3.3V/3.5V). The device also has very low quiescent current (2.2mA) and has very low dropout voltage (0.2V). These unique features allow for very small form factors and efficient power conversion, as well as flexible and reliable operation.

The MIC5209-3.3BM is an ideal choice for applications that require high efficiency, low power dissipation and small form factor. The device is designed to provide reliability and cost-effective power management solution to enable the development of highly efficient power systems.

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