TC1185-3.6VCT713

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TC1185-3.6VCT713 Application Field and Working Principle

The TC1185-3.6VCT713 is a linear voltage regulator from the PMIC - Voltage Regulators - Linear family. They are designed to precisely regulate a voltage by creating a voltage drop between an input and an output terminal. As a linear regulator it can provide very high accuracy and very low output noise.

This regulator is especially useful in applications requiring a low drop-out voltage and a low standby current. It is suitable for power management applications in a variety of fields, such as automotive, industrial, communications, and consumer electronics.

Features

• Input voltage range from 0.9V to 20V
• Output voltage of 3.6V with high accuracy (±2.5% plus a 1mV offset)
• Low quiescent current: 50µA (typical)
• No external components required
• Transient response: below 1.5%
• Drop-out voltage: less than 0.2V at full load
• Thermal protection
• Reverse polarity protection

Working Principle

The TC1185 is a linear regulator that works essentially by switching off transistors to regulate the input voltage. The input voltage is applied to an error amplifier and then to a frequency-controlled oscillator. The output voltage is determined by the resistor/capacitor network connected to the oscillator output. The oscillator output sets the ON/OFF state of output transistors. The error amplifier senses the output voltage and sets the oscillator\'s frequency. A high frequency keeps the output capacitors charged and a low frequency turns the output transistors off, limiting the amount of current drawn from the input.

The TC1185 is designed to provide a precise output voltage with minimal current consumption and low noise. The quiescent current can be regulated down to a few microamps, and the output noise is lower than 50µV P-P. The low dropout voltage ensures that there is enough voltage across the output transistors for the regulator to remain stable and precise. Furthermore, it has protection features such as thermal shutdown, reverse polarity protection, and current limiting.

Applications

The TC1185 is suitable for a variety of power management applications, such as in automotive, industrial, communication, and consumer electronics. It is especially suited for applications requiring precise voltage regulation, low drop-out voltage, and low standby current.

• Automotive: Supply for dashboard displays, ECU, sensors, and actuators.
• Industrial: Power supplies for PLCs, industrial robots, and CNC machines.
• Communications: Power supplies for telecommunications, base stations, and routers.
• Consumer electronics: Battery chargers, mobile phones, tablets, and portable devices.

The TC1185-3.6VCT713 is a reliable and precise linear regulator, perfect for applications requiring accurate voltage regulation and low current consumption.

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