IR3570AMIE04TRP

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The IR3570AMIE04TRP is a special purpose voltage regulator from the PMIC (Power Management Integrated Circuits) family. It is a fixed voltage regulator that can be used in a wide variety of applications, including powering low current digital circuitry or providing a stable power supply for AC or DC motors.

The IR3570AMIE04TRP is a three-terminal integrated circuit with an output voltage that can be set with external resistors. The voltage output is adjustable between 7V and 36V, making it suitable for many applications. The package size is very small, since the chip has only 2 pins, and it can be mounted directly onto the circuit boards. The power dissipation is very low, with a rated input current of only 0.3mA.

The primary feature that makes the IR3570AMIE04TRP stand out is its MOSFET-based voltage control. This feature allows the output voltage to be precisely monitored and regulated by the MOSFETs, providing a stable and reliable power supply even in fluctuating or noisy power environments. The device also includes a temperature-related protection, which is triggered when the chip’s temperature exceeds 75°C.

The working principle of the IR3570AMIE04TRP is based on the use of two MOSFETs – one connected to the positive voltage rail and one connected to the ground. The two MOSFETs M1 and M2 are connected in series, forming a voltage divider circuit. The reference voltage is applied to the gate of M2, then the gate of M1 is used to adjust the voltage output. As the voltage at the gate of M1 is increased, the voltage output is increased, and vice versa.

In order to provide an accurate and reliable output, the gate of M1 is monitored by a feedback circuit. This feedback circuit consists of two divider resistors and a resistor feedback capacitor. The divider resistors divide the output voltage and the feedback capacitor charges and discharges according to the current level. The feedback capacitor can then be adjusted to maintain the voltage output at a preset level.

The IR3570AMIE04TRP is ideal for applications that require precise and stable voltage regulation with low current levels. It offers a low power dissipation, small package size, and precise voltage control via its MOSFET-based voltage control. This makes it ideal for powering low current digital circuitry or providing a stable power supply for AC or DC motors. The IR3570AMIE04TRP is a reliable and cost-effective solution for a variety of applications.

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