REG113EA33250G4

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PMIC or Power Management Integrated Circuits are essential elements in any electronic device. They are responsible for regulating the power supply for the various components and for protecting them from power surges and drops, as well as for reducing power consumption. Among the different types of PMICs, linear voltage regulators are the most prevalent. The REG113EA33250G4 is a good example of one such linear voltage regulator.

The REG113EA33250G4 is a single-channel, low drop-out (LDO) linear voltage regulator that provides output voltages of 3.3V to 5V. It runs on an input voltage range of 1.7V to 5.5V and is implemented in a TSMC low power process. The device has an adjustable output current of up to 250 mA, and a thermal shutdown protection that shuts off the device when the junction temperature reaches 150°C. The device also features a low-noise design and an operating temperature range of -40°C to +85°C.

In terms of applications, the REG113EA33250G4 is usually used to provide a stable power supply for various system components such as CPUs, FPGAs, ASICs, Photodiodes, Sensors and Actuators. This device is also used to provide the requisite output power for the device it is powering. For example, a system that requires 3.3V and 5V can use this device to power both 3.3V and 5V components.

The REG113EA33250G4 has a simple working principle. It consists of a series of resistors, diodes and transistors that help convert a higher voltage input into a lower voltage output. When the device is supplied with the input voltage, the series of resistors reduce the voltage according to the output requirement. The diode then functions as a protection element while the transistor acts as a switch between the input and output voltages.

The REG113EA33250G4 has two basics modes of operation. The first is the dropout mode, which is used when the input voltage is greater than or equal to the output voltage. In this mode, the difference between the input voltage and the output voltage is known as the dropout voltage and is usually in the range of 500mV-600mV. This mode is used mostly to power low current components.

The second mode is the overvoltage mode, which occurs when the input voltage is lower than the output voltage. In this mode, the output voltage is dropped slightly and the difference between the input and output voltages is known as the overvoltage voltage. This mode is used when powering higher current components, as the overvoltage voltage helps protect the device from high current spikes.

In summary, the REG113EA33250G4 is a single-channel low-dropout linear voltage regulator designed to provide a reliable power supply to different system components. It has an adjustable output current of up to 250 mA and a thermal shutdown protection feature that shuts off the device when it reaches a certain temperature. The device works according to two basic modes – drop out and overvoltage – and is usually used to power system components requiring 3.3V and 5V.

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