LT1389BCS8-1.25#PBF Integrated Circuits (ICs)

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The LT1389BCS8-1.25#PBF is an ultra-low dropout, low noise voltage reference with precision voltage and current limit. It is classified as PMIC - Voltage Reference, meaning that it can be used as a power reference to provide precise regulated voltages to circuits. Voltage regulation is important in power supply design as it ensures that the supply provides accurate and continuous voltage output, even when the input voltage is varying.

The LT1389BCS8-1.25#PBF is designed for battery-powered and portable applications and is capable of delivering precision voltage reference and stable current limit with low dropout voltage and low noise. This voltage reference is simple to use with its auto-zero circuit and wide dropout range. It is available with a 1.25V output voltage and precision voltage regulation as small as 0.2 percent down to 1 percent maximum, making it ideal for low power applications.

The LT1389BCS8-1.25#PBF provides precise voltage and current limits in a wide range of applications. Its main application field includes precision voltage references, voltage regulation and protection, temperature monitoring, load regulation, motor control and power line protection. This voltage reference also works great for battery-powered systems, embedded devices, and microcontrollers.

The LT1389BCS8-1.25#PBF provides precise low noise and low dropout voltage output. It features an auto-zero circuit that provides a voltage reference with dynamic accuracy of 0.02 percent. This voltage reference also has a very low drop out voltage range, allowing it to be used in applications where low dropout is required, such as in battery-operated applications.

When it comes to its working principle, the LT1389BCS8-1.25#PBF uses a feedback loop to keep the voltage across the reference output stable. This is achieved by a high-side lateral N-channel MOSFET which is connected between the internal voltage reference and the external load. The output of the MOSFET is continuously monitored by the high-input impedance amplifier on the reference output and compared with the reference voltage. When the output voltage falls below the reference voltage, the amplifier adjusts the voltage across the MOSFET to increase the current, thus restoring the reference output voltage to the desired level.

The LT1389BCS8-1.25#PBF is also equipped with current-limiting protection and temperature monitoring. The LT1389BCS8-1.25#PBF is designed to automatically shut down the device if it exceeds the preset current-limit or temperature-limit thresholds. This feature is especially important in battery applications where over-current and over-temperature conditions can easily damage the battery.

The LT1389BCS8-1.25#PBF is designed to provide precision voltage and current limits with low dropout and low noise. It is ideal for battery-powered applications, embedded devices, and microcontrollers. With its auto-zero circuit and wide dropout range, it provides precise voltage regulation and protection. Its main application fields include precision voltage references, voltage regulation, protection, temperature monitoring, load regulation, motor control, and power line protection.

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