MIC5503-1.8YMT-TZ

Introduction

MIC5503-1.8YMT-TZ is a linear voltage regulator that belongs to a product family of PMIC (Power Management Integrated Circuit). It is developed by a leading semiconductor manufacturer, Microchip Technology Inc. It is a three-terminal adjustable regulator that is intended to supply localized or distributed output voltage regulation. This voltage regulator is designed to meet the needs of various electronic products requiring power distribution and system power regulation.

Application Fields

The MIC5503-1.8YMT-TZ voltage regulator is a 3-pin, adjustable voltage regulator that is designed to provide a high level of regulation accuracy for a wide range of electronic products. It is suitable for small, medium and large scale applications such as distributed industrial power supply, notebook computers, general monitoring systems, automotive electronics, portable/Battery-powered products and telecommunications.

This voltage regulator comes with an 8-pin SOIC-8 an 8-pin DFN 2 × 2 package and it can support a wide input voltage range of 4.0V to 20V. The chip is capable of offering an output voltage range of 0.5V to 16V with an accuracy of ±2% and an output current of 1A. It has a thermal protection and transistor protection features.

In addition to power supplies, the MIC5503-1.8YMT-TZ can also be used as a reset circuit when connected with an external resistor, allowing for automatic restart when the system is back in operation.

Working Principle

The working principle of the MIC5503-1.8YMT-TZ voltage regulator is based on the principle of negative feedback regulation. An internal voltage regulator is used to regulate the output voltage of the circuit. The regulator will compare the actual output voltage to its reference voltage, generating an error voltage. This error voltage is then used to control the gate of a pass transistor, thus regulating the output voltage.

The MIC5503-1.8YMT-TZ voltage regulator uses a N-channel MOSFET as the pass transistor. The MOSFET can be turned on or off through the use of a digital control line. The control line turns the MOSFET on when it is low and turns it off when it is high. The voltage on the MOSFET gate is controlled by the error voltage that is generated by the internal voltage regulator.

Conclusion

The MIC5503-1.8YMT-TZ voltage regulator is a linear voltage regulator designed for distributed output power regulation. It is a three-terminal adjustable regulator intended to provide a high level of regulation accuracy for a wide range of electronic products including distributed industrial power supplies, notebook computers, general monitoring systems, automotive electronics, portable/Battery-powered products, and telecommunications. This voltage regulator uses a N-channel MOSFET pass transistor that is controlled through the use of a digital control line.