MIC5233-1.8YM5-TR

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The MIC5233-1.8YM5-TR is a Linear voltage regulator from Taiwanese semiconductor manufacturer, Microchip Technology Inc.. It is a continuous, low-dropout (LDO) positive voltage regulator that is designed to provide a regulated supply voltage to a wide range of applications. The MIC5233-1.8YM5-TR is capable of supplying up to 1.8A of load current with a maximum efficiency of 95%. The output voltage is adjustable, with a range of 1.25V to 5V. The MIC5233-1.8YM5-TR is also renowned for its low quiescent current of 13µA, making it ideal for applications where power saving is a priority.

The MIC5233-1.8YM5-TR is particularly suitable for applications in which extremely low dropout voltage is required. It is capable of regulating output voltages with a dropout voltage of only 350mV, making it ideal for applications where power saving is paramount. Furthermore, the MIC5233 incorporates a built-in control circuit that prevents overcurrent shutdown and ensures the stability of loop characteristics above 1MHz.

In general, the MIC5233-1.8YM5-TR is suitable for a wide range of applications, particularly those where extremely low dropout voltage, high efficiency and accuracy are required. Such applications include automotive, digital television, computers, cellular telephones and other mobile devices.

The MIC5233-1.8YM5-TR’s working principle is quite simple: it consists of an internal PMOS transistor connected in series with an NPN bipolar transistor. The PMOS transistor is used to set the output voltage, while the NPN transistor is used to provide the current path to the output. The PMOS transistor is connected to an OTP (On-Threshold Programming) pin which is used to set the desired output voltage. The PMOS transistor is also connected to an enable pin which is used to enable the regulator and start the regulation process. When the regulator is enabled, the gate terminal of the PMOS transistor is clamped to a voltage equal to the output voltage which is set by the OTP pin. When the voltage at the gate terminal of the PMOS rises or falls below the output voltage, the PMOS transistor will dissipate a certain amount of power, which causes the output voltage to change. This principle can be applied to achieve a wide range of output voltages.

In addition, the MIC5233-1.8YM5-TR incorporates a wide range of protection features such as thermal shutdown, overcurrent protection, output short circuit protection, and output overload protection. These features ensure safe and reliable operation of the regulator.

To conclude, the MIC5233-1.8YM5-TR is a highly reliable, efficient, and accurate Linear voltage regulator. It is capable of providing up to 1.8A of load current with a maximum efficiency of 95% and low dropout voltage of just 350mV. Furthermore, it comes equipped with a wide range of protection features, making it ideal for applications where reliability and safety are paramount.

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