TCR2EN21,LF

TCR2EN21,LF Application Field and Working Principle

TCR2EN21,LF is a member of the line of voltage regulators from TOKIN Corporation. It is specifically designed to provide a reliable source of stable power to various electronics systems, such as cell phones, TVs, computers and other consumer electronics. The TCR2EN21,LF is a low dropout voltage regulator with current-mode control and provides a wide operating temperature range and fast transient response.

Field of Application

The TCR2EN21,LF is suitable for supplying power to a variety of high current electronics systems, such as: cell phones, TVs, computers, car navigation systems, and other consumer electronics. It can also be used in industrial applications, such as lighting systems, robotics, and process control. In addition, it can be used for point-of-load regulation in power supplies.

Working Principle

The TCR2EN21,LF is a low dropout voltage regulator with current-mode control. The current-mode control system is designed to provide high-power efficiency and tight regulation over a wide operating temperature range. It is designed with an advanced voltage feedback architecture to ensure excellent line and load regulation.

The power input to the TCR2EN21,LF is a voltage that is significantly higher than the output voltage. This voltage is converted to a current and passed through an internal switch. The current then passes through a low pass filter, which reduces the high frequency component. The filtered current is compared with the reference current, which is provided by an internal reference voltage source. The comparison of the two is used to produce an error signal, which is used to drive the switch. The duty cycle of the switch is adjusted in order to ensure that the output voltage is maintained at the desired level.

The TCR2EN21,LF also features an internal low dropout current limiter, which limits the output current to safe levels in order to protect the system from current overloads. It also features an internal thermal shutdown circuit, which shuts down the regulator in the event of an over-temperature condition. The thermal protection circuit is designed to protect the device from high temperature damage.

Summary

The TCR2EN21,LF is a low dropout voltage regulator with current-mode control and a wide operating temperature range. It is designed for supplying power to a variety of high current electronics systems. It features an advanced voltage feedback architecture for excellent line and load regulation. Additionally, it has an internal low dropout current limiter and an internal thermal shutdown circuit for protection from over-current and over-temperature conditions.