TDA3664AT/N1,118

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PMIC - Voltage Regulators - Linear

The TDA3664AT/N1,118 is a linear voltage regulator from STMicroelectronics, which can be used for shallow and deep submicron CMOS, BiCMOS and bipolar ICs and ASIC process designs. It is especially suitable for applications in which power dissipation, cost and/or line transmission are critical factors. The device is typically operated at a supply voltage of 3.3V but can also be powered from a lower or higher voltage, up to 6V. The output voltage and current limit can be set by two resistors.

Application Field of TDA3664AT/N1,118

TDA3664AT/N1,118 is mainly used in automotive electronics, consumer electronics, industrial control, medical and entertainment systems. It can be used in applications such as computers and peripherals, mobile phones, PDAs, LCDs/TVs, disks, motors/actuators/engines, power supplies, and consumer appliances. In these applications, the device can provide very low noise levels and reduce the EMI, since it operates on a very low voltage and current.

Working Principle of TDA3664AT/N1,118

The device is based on a MOSFET structure and has a built-in negative bias generator. The latter ensures a stable negative voltage at the source of the FET, which results in a negative voltage drop on the output voltage of the regulator. This means that the output voltage is always lower than the input voltage, regardless of load, temperature and AC signal. This makes the device very suitable for low-voltage applications. In addition to the negative bias generator, the device also includes a built-in over-current protection circuit, which generates a high-speed response to direct short-circuit conditions.

Advantages of TDA3664AT/N1,118

One of the main advantages of the TDA3664AT/N1,118 is its low-noise and interference-rejection capabilities. The device also offers a very good efficiency, since it operates on only 3.3V supply voltage and is able to achieve high-precision regulation. In addition, it offers a wide operating temperature range from –40°C to + 85°C, which makes it suitable for applications in harsh environments.

Conclusion

In conclusion, the TDA3664AT/N1,118 is a very useful linear voltage regulator for many different applications. It offers very low noise levels, high precision regulation and very good efficiency. It also has a wide operating temperature range and offers protection from over-current and direct short-circuits.

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