TLE4275QKVURQ1

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The TLE4275QKVURQ1 is a 1.5A low dropout linear regulator designed for a wide variety of applications. It is comprised of a high-performance bipolar linear regulator, an output voltage protection circuit, temperature sensing circuitry and a slew rate control circuit. The TLE4275QKVURQ1 has been designed to provide optimal performance under all conditions, and is suitable for automotive engine control and other high-voltage, low-input voltage applications.

The basic structure and principle of the TLE4275QKVURQ1 is based on single-ended linear regulator topology, which uses an active semiconductor device to build the feedback loop. The active device is an N-channel MOSFET, which forms a voltage divider with an external resistor, providing a feedback voltage. The device also includes a current sense resistor, a compensation capacitor and a BCMOS gate driver, which provides logic control of the MOSFET. The TLE4275QKVURQ1 linear regulator operates in a hysteretic control scheme. It detects changes in the input voltage and responds by adjusting the output voltage accordingly.

The hysteretic control operates with a voltage reference set by the output voltage, which is compared to the feedback voltage. When the feedback voltage is greater than the reference voltage, the output is forced “on” until the feedback voltage is less than the reference voltage, at which point the output is then turned “off”. This cycle is known as “regulation” and repeats itself to maintain the desired output voltage. The frequency of the cycling is set by the resistor and capacitor connected to the voltage reference pin. The control loop is further optimized by a slew rate control circuit, which ensures a smooth output voltage transition.

The TLE4275QKVURQ1 is ideal for applications requiring a stable output voltage in applications with high input voltage transients, such as automotive engine control systems. This is because the hysteretic control scheme operates with low input voltage ripple and is able to maintain stable output voltages even in the face of wide input voltage variations. The output current capability is 1.5A. The parts are rated for operation from -40°C to +125°C.

The TLE4275QKVURQ1 is a simple, cost-effective linear regulator solution for a wide variety of automotive and other high-voltage, low-input voltage applications. It provides a stable output voltage in applications with high input voltage transients, and is rated for operation from -40°C to +125°C. The output current capability is 1.5A and the hysteretic control scheme ensures a smooth output voltage transition.

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