TPS79730DCKRG4

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

TPS79730DCKRG4：Application Field and Working Principle

The TPS79730DCKRG4 is an ultra-low power Linear Regulator or LDO device made by Texas Instruments. It is designed to provide a stable output voltage during a wide variety of operating conditions. The regulator works by converting a higher supply voltage to a lower output voltage with a two-stage approach. It is primarily intended for use in applications with very low power consumption, such as cell phones and portable electronics.

Functionality

The regulator has a wide input voltage range of 2.2V to 13.2V and can provide an adjustable output voltage from 0.6V to 6V. In addition, the device can offer a very low quiescent current of 0.3µA that is maintained at the dynamic load. It features an excellent PSRR from 50dB at 1kHz, which is ideal for switching regulators or noise-sensitive applications. The regulator is also capable of providing very low dropout voltage of 155mV at full load.

The device also offers excellent protection features such as over-temperature protection, and over-current protection. It has excellent ripple rejection of 75dB, which helps reduce the output noise and provides clean and stable power. In addition, the device can provide a fast start-up time of less than 2.5µs.

Applications

TPS79730DCKRG4 is particularly well suited for use in automotive, industrial, and consumer applications. Its miniaturised size of 1.2 mm x 1.2 mm x 0.4 mm and its ability to regulate up to 6V at low current makes it ideal for powering low-power circuits on small devices, such as cell phones and portable electronics. Its low quiescent current and high PSRR makes it ideal for high noise environments and the low dropout voltage means it does not require large input voltage margins.

The TPS79730DCKRG4 is also ideal for powering sub-systems in vehicles, such as instrument clusters, lighting systems, climate control systems, and other electronic components. Its extended temperature range makes it well suited for automotive and industrial applications that require reliable operation in extreme temperatures.

Working Principle

The TPS79730DCKRG4 works by using a two-stage approach to convert a higher supply voltage to a lower output voltage. The first stage is a Positive Voltage Reference (PVR) circuit which provides an accurate output voltage. The second stage is an error amplifier which compares the output voltage with the desired set point and adjusts the current through the PVR to maintain the output voltage at the required level.

The regulator is capable of providing a very low dropout voltage of 155mV, which allows it to regulate the output voltage at very low drop bearing high currents. The device also features a very low quiescent current of only 0.3µA at dynamic load current. This allows the device to maintain an extremely low power consumption, as well as extend battery life.

The TPS79730DCKRG4 is an excellent device for powering low-power circuits on small devices with a wide variety of operating conditions. Its low power consumption and high PSRR make it well suited for use in high noise environments, and its extended temperature range makes it suitable for automotive and industrial applications.

The specific data is subject to PDF, and the above content is for reference