TPS79418DCQRG4

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• TPS79418DCQRG4

  The TPS79418DCQRG4 is a high performance ultra-low quiescent current, high efficiency, low dropout linear voltage regulator from Texas Integrated Circuits. It has an operating range of 3 V to 24 V, a 100 mA output current, and can operate in a tiny 2 mm × 2 mm QFN package. The package also includes reverse current protection, over-current protection, thermal shutdown protection, and power-good reporting.

  The TPS79418DCQRG4 is designed for applications that require power with low quiescent current, such as automotive, industrial, and medical applications. It provides the stability, efficiency, and flexibility required in these applications while avoiding the need for external components. The device can be configured to provide a combination of adjustable and fixed outputs.

  Applications

  • Automotive
  • Industrial
  • Medical
  • Consumer electronics
  • IoT
  • Battery-powered systems

  Working Principle

  The TPS79418DCQRG4 is a low dropout linear regulator with a built-in pass transistor, which allows it to regulate the output voltage with a minimum dropout voltage. This design provides efficient power regulation under low load conditions. The on-chip pass gate acts as a dynamic stabilizer, reducing output voltage overshoots, undershoots, and transients. The on-chip dynamic gain compensation ensures fast line and load transient responses while preserving system stability.

  The device has an internal thermal protection and short-circuit protection feature. It also features reverse current protection, over-current protection, and an adjustable soft-start control pin to prevent applications from inrush current. The device is filtered by an internal low-pass filter to reduce output noise.

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