TPS70938DBVT

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

TPS70938DBVT Application Field and Working Principle

The TPS70938DBVT is an adjustable linear voltage regulator with a single output in an industry-standard TO-263 package. This versatile regulator is designed to cover a wide range of application needs in battery powered electronics.

Application Field of TPS70938DBVT

This device is suitable in a broad range of portable devices, including mobile phones and portable multimedia devices, such as digital cameras, digital audio players, and PDAs. The low dropout voltage keeps the battery voltage within the tight regulation range which helps reduce power consumption and increases system efficiency.

The adjustable output voltage range is 0.9V to 5.5V, which is suitable for most portable device drivers and circuits. The minimum dropout voltage of the device is only 0.3V, making it possible to use low dropout regulators with higher voltage output ranges than is possible with fixed voltage regulators.

The device also features a low noise low dropout regulator for low noise performance and low power consumption. The high peak current capability allows it to drive heavy loads with ease. It also offers excellent transient response and EMI performance, which makes it suitable for a variety of applications.

Working Principle of TPS70938DBVT

The TPS70938DBVT is a linear voltage regulator with adjustable output voltage. It works based on the principle of linear regulation. The device consists of a reference voltage, an error amplifier and a series pass transistor. The reference voltage is a voltage that is fixed at a certain level. This reference voltage is compared with the input voltage. The difference between the input voltage and the reference voltage is detected by the error amplifier and compared to a certain limit. If the difference exceeds the limit, the error amplifier will adjust the series pass transistor such that the output voltage is regulated.

The output voltage of the device is adjustable between 0.9V to 5.5V. An external resistor divider can be used to program the output voltage. If the output voltage is too low, the error amplifier will increase the output voltage. If the output voltage is too high, the error amplifier will decrease the output voltage. This process continues until the output voltage is stabilized and the device is in its linear regulation mode. The device also offers protection against overvoltage, overcurrent and thermal shutoff.

The TPS70938DBVT is an ideal linear voltage regulator for battery-powered application. Its wide adjustment range, low noise and low power consumption, combined with high peak current capability make it suitable for a variety of portable applications.

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