S-L2980A19MC-TF-U

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Linear voltage regulators, also known as linear regulating circuits, refer to a voltage source whose output voltage remains constant even when the input voltage or load current is changed. The S-L2980A19MC-TF-U is a low dropout (LDO) linear voltage regulator, specifically designed for low voltage and space-constrained applications. Its unique solution gives engineers a high performance power management option that fits their design needs and budget requirements.

Application and Working Principle

The S-L2980A19MC-TF-U is a 1.9 V output LDO linear voltage regulator that is designed to deliver low voltage and space-constrained applications. This product is used in mobile devices such as smartphones, tablets, or portable computing devices, backlight LED adjustment, noise-reduction circuitry for audio devices, LED lighting, consumer electronic battery management, high output voltage displays, security systems, and many other consumer electronic applications. Its tight operating temperature range allows it to maintain stability even in harsh environmental conditions.

This low dropout (LDO) linear voltage regulator includes features that allow it to perform in a variety of applications. Its input voltage range is broader than many other LDOs, making this product highly efficient and suitable for both low input and high input voltage applications. It also features an overcurrent protection function which restricts current to a safe level, preventing circuit damage. Additionally, the S-L2980A19MC-TF-U offers a low quiescent current, providing improved reliability and longer battery life for your device.

The S-L2980A19MC-TF-U has a working principle based on the classic Zener diode base regulation principle. A Zener diode, also known as a voltage reference diode, acts as the output voltage reference. When the power supply voltage (Vin) exceeds the desired output voltage (Vout), a constant output current (Iout) is generated which flows through a series of series-connected resistors. The steady-state output voltage is then determined by the ratio of the resistances between the resistors. Across each resistor, a drop in voltage occurs. The ratio of the resistances therefore determines the drop in voltage produced by the voltage regulator. This voltage drop is referred to as the "regulator differential voltage".

The S-L2980A19MC-TF-U provides improved power efficiency by reducing power dissipation. Its low dropout voltage of 1.0 V ensures that the output voltage remains even when the input voltage drops or the load changes. Additionally, its excellent load and line regulation ensure stable and reliable operation at varying load and input voltages. The S-L2980A19MC-TF-U also features an internal voltage reverse-polarity protection circuit, eliminating the need for a separate protection circuit. This protection circuit prevents reverse current flow, which can damage the output stage of the regulation circuit.

The S-L2980A19MC-TF-U is a cost-effective solution that offers high efficiency and reliability, providing engineers with an ideal power management solution for their various applications. With its excellent performance, the S-L2980A19MC-TF-U voltage regulator is an ideal choice for those needing a reliable and low- cost power management solution.

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