TCR2EN34,LF

TCR2EN34,LF is a linear voltage regulator from Analog Devices manufactured in a 4 pin TO-252 Surface Mount Plastic Package. The TCR2EN34,LF voltage regulator circuit offers thermal stability, flexibility and excellent rate of the load and line transient response. It has an optimized power efficiency and its overload protection keeps an output short circuit and overload condition in check.

Features

• Input voltage of up to 40V
• High power dissipation of 2 watts
• 20µA input current
• Low dropout voltage of 200mV

Advantages

• Excellent rate of line and load transient response
• High series of accuracy
• Thermal and overload protection enable extended life and improved quality
• Proven high reliability
• Rugged construction suitable for harsh environments

Applications

• Utility monitoring
• Battery powered equipment
• Computer peripherals
• Industrial control systems
• Precision linear voltage regulation
• High voltage regulation
• DC/DC converters
• High current regulation

Working Principle

The TCR2EN34,LF linear voltage regulator uses a feedback mechanism to provide a stable and efficient output voltage, regardless of the input voltage. It contains an error amplifier, a voltage reference, and series of control circuits for voltage regulation. Input voltage is applied to the error amplifier and compared with an internal reference voltage. If there is difference between the input voltage and the reference voltage at the input pin of the error amplifier, it triggers a change in the output voltage of the regulator.

The output voltage is then determined by the output pin of the error amplifier. The error amplifier drives the P-channel MOSFET or NPN transistor, which controls the current supplied to the output chip. As a result, the current supplied to the output chip is inversely proportional to the input voltage, so that the output voltage remain stable. This process is repeated continuously as the input voltage changes, and the feedback mechanism keeps the output voltage from fluctuating.

Conclusion

The TCR2EN34,LF linear voltage regulator from Analog Devices is a high-efficiency device that offers thermal stability, flexibility and excellent rate of the load and line transient response. It features low dropout voltage, 20µA input current, and high power dissipation of 2 watts, as well as high series of accuracy. It is suitable for a range of applications, such as utility monitoring, battery powered equipment, computer peripherals, industrial control systems, precision linear voltage regulation, high voltage regulation, DC/DC converters and high current regulation.