MCP1810T-18I/TT

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The MCP1810T-18I/TT is a device under the Power Management Integrated Circuit (PMIC) Linear Voltage Regulators category. It is specifically designed for low noise, low power, low dropout linear voltage regulator applications.

The MCP1810T-18I/TT provides high-performance regulation in a variety of input/output configurations, including 3.2V to 30V input voltage, 0.8V to 19V output voltage and accompanying drive currents of up to 500mA. Additionally, this device features ultra-low dropout voltage with low quiescent current, high output current capability and excellent PSRR throughout the extended temperature range making it suitable for a wide range of analog circuit applications.

The MCP1810T-18I/TT advantageously combines voltage and current regulation to help engineers optimize their design in terms of power dissipation, cost, board space and performance requirements. Its Ultra-Low Dropout Linear Regulator sub-circuit allows for output voltage settings ranging from 0.8V to 3.5V with an added Load Switch circuit which allows for the wide input voltage range settings while the current regulation feature is used to optimize the number of pass transistors required for an application.

The MCP1810T-18I/TT features a Low Input Voltage, Low Noise Linear Regulator which helps protect the load in low voltage applications and extend battery run-time. In addition, the device also features an active-high Enable pin to put the load switch into a low current state, commonly referred to as “sleep.” It prevents the output voltage from settling down during power-down conditions and provides a very-high input-to-output voltage ratio.

This device also offers protection against reverse voltage, output short circuit and over-temperature conditions by means of the Fault Detector and thermal shutdown circuitry, extraneous protection against over-temperature, input and output voltage transients, and high peak inrush current, Notching Filter & Reverse Battery Protection. The reverse battery protection provides an optional circuit for enabling and disabling operation of the device with a reverse-battery applied to the input voltage.

The MCP1810T-18I/TT\'s Working Principle is based on a High Gain Push-Pull Regulator with Low Dropout Voltage Format. It uses a high gain control network, consisting of matched sets of P and N-channel transistors, paralleled with one of the transistors placed in reversed biased to form a charge pump. This network produces a higher gain and reduces the drop-out voltage. The MCP1810T-18I/TT is designed to maintain a very low dropout voltage at low line input and high output current capabilities and offer capability to support current of up to 500mA.

The MCP1810T-18I/TT presents several useful application fields. First, it is ideal for any general purpose, low noise, low power, and low dropout linear voltage regulator application. These include automotive, industrial, and consumer electronics, as well as laptop and telecommunications applications. Its wide range of output voltage and current regulation capability compound its suitability for linear voltage regulator supply applications. Additionally, its low quiescent current, high output current capability and excellent PSRR makes it suitable for a wide range of analog circuit applications requiring headroom and ripple rejection such as low noise low power voltage references, amplifiers, oscillators, high speed, and high performance analog circuits.

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