LT1123CZ#TRPBF

PMIC - Voltage Regulators - Linear Regulator Controllers

LT1123CZ#TRPBF Application Field and Working Principle

The LT1123CZ#TRPBF is a low-dropout (LDO) linear regulator controller manufactured by Liner Technology. It has an adjustable output voltage range of 0.8V to 5.5V and an input voltage range of 2.7V to 12V. It has both dropout voltage and power dissipation ratings of 25mV and 400mW, respectively. It also features excellent thermal stability and transient response, making it ideal for power-sensitive applications. In addition, it has the ability to operate at temperatures from -40°C to 125°C.

This device’s application fields include automotive, portable, telecommunications, and computer systems. In these applications, it is used to provide low-dropout voltage regulation and can be designed as a fixed- or adjustable-output voltage regulator. It can also be used in battery-powered systems as a low-power, low-noise, low-dropout solution. It is highly efficient in battery applications due to its low dropout voltage and low power dissipation.

The LT1123CZ#TRPBF is a piezo-resonant monolithic bandgap voltage reference and voltage error amplifier, which offers superior performance in terms of line and load regulation. This device uses an internal voltage error amplifier to provide high accuracy, low noise, and fast transient response. TheLT1123CZ#TRPBF features an adjustable output voltage range and can thus be used in applications which require different output voltages. Its high accuracy and noise performance make it suitable for precision-regulated power supplies.

The device consists of two major sections. The voltage reference section produces a precise output voltage, which is proportional to the voltage on the internal reference diode. The error amplifier compares this reference voltage with a feedback voltage and outputs an error signal to the output driver, which controls the output voltage. The error amplifier also provides a zero-crossing point, which prevents the output voltage from exceeding either of its rails.

In addition, the LT1123CZ#TRPBF provides a current limit feature which can be used to limit the output current. This feature helps protect the device from excessively large output currents, which can be caused by a short circuit or other faults. It also reduces the risk of an overcurrent condition which can potentially damage the output device.

The LT1123CZ#TRPBF is a versatile and reliable LDO linear regulator controller for a wide range of applications. Its low dropout voltage and low power dissipation enable efficient use in battery-powered systems, while its high accuracy and noise performance make it suitable for precision-regulated power supplies. In addition, the adjustable output voltage range and current limit features make the LT1123CZ#TRPBF an ideal choice for a variety of applications.