LT1129CQ#TRPBF

The LT1129CQ#TRPBF is a high input current linear voltage regulator designed for industrial automation applications. It is a low power, wide operating temperature range device that offers excellent remote programming capability. The device is a single supply, adjustable linear voltage regulator, which can be used either as a fixed output voltage or to provide adjustable output voltage. The LT1129CQ#TRPBF is optimized for use in industrial automation applications and has a low output voltage ripple. It is also very efficient due to its unique topology and can handle a higher input voltage than a traditional linear regulator.

The LT1129CQ#TRPBF has a wide input voltage range of 4.5V to 60V, wide output voltage range from 0.1V to 7V, and an adjustable current limit from 1A to 3.3A. The device features an adjustable reference voltage to allow for precise output voltage setting as well as a programmable over-temperature shut-down. It also has short-circuit protection with fold-back current limiting. In addition, the LT1129CQ#TRPBF features thermal runaway protection and over-voltage protection.

The LT1129CQ#TRPBF is designed for use in industrial automation systems and has a wide operating temperature range of -40 degree Celsius to 120 degree Celsius. It is ideal for use in low power applications such as instrumentation, motor drivers, and solar array regulators. It can be used as a step-down regulator in buck converter applications and its low output voltage ripple makes it an ideal choice for noise sensitive applications.

The working principle of the LT1129CQ#TRPBF is based on series regulating topology. It consists of a reference voltage transistor and a pass transistor connected in series between the input and output terminals. The pass transistor is a low side switch which is connected to the base of the reference voltage transistor. The reference voltage is set by the user and the pass transistor turns off when the input voltage exceeds the reference voltage. This will reverse the current output of the pass transistor and the output voltage will remain at the reference voltage.

In order to adjust the output voltage, the reference voltage which is applied to the base of the reference voltage transistor is adjusted. The reference voltage can be adjusted by the user through an external control pin or programmable reference voltage. When the user sets the reference voltage, the pass transistor will turn on or off to maintain the output voltage at the desired level. The LT1129CQ#TRPBF also includes a fold-back current limit circuit which will limit the output current when the output voltage drops to a certain value.

The LT1129CQ#TRPBF is a versatile, high input current linear voltage regulator that can be used in a wide range of industrial automation systems. It offers excellent remote programming capability, low output voltage ripple, and wide operating temperature range suitable for industrial use. The device also includes a fold-back current limiting circuit, which provides a safe operating environment during overload or short circuits.