S-812C42BPI-C4WTFU

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The S-812C42BPI-C4WTFU is a low cost, low noise, high efficiency dual-channel analog linear voltage regulator series from Diodes Incorporated. It is designed for use in many applications requiring low-noise power supplies, such as audiophile grade audio systems, computer gaming and networking equipment, wireless connected applications, automotive electronics, and surveillance and motion detection equipment.

The S-812C42BPI-C4WTFU integrates two fully-regulated linear regulators with a single package to provide dual outputs, which can be utilized in a wide range of electric circuit applications. The multiple output options support both positive and negative voltage requirements. The maximum output current is 2A and maximum output voltage is up to 16V. Its wide operating temperature range is from -40°C to 105°C, and it offers an efficient solution due to its low quiescent current of 230μA.

The unique feature of the S-812C42BPI-C4WTFU is its high PSRR (power-supply rejection ratio) rating of 74 dB at 1 kHz, which ensures outstanding performance in noisy environments. This allows the series to efficiently filter noise, thus protecting sensitive circuitry from voltage variations and meeting stringent EMC (electromagnetic compatibility) requirements, as well as offering superior noise and ripple control.

The S-812C42BPI-C4WTFU also integrates other features such as over-current protection, over-temperature protection, over-voltage protection, and an integrated indicator LED for power-good indication. Furthermore, it offers low dropout voltage (400 mV at light load) of 10 mV at full load for better system reliability.

Overall, the S-812C42BPI-C4WTFU is a high-performance, low-noise, and efficient linear voltage regulator series, which offers superior noise and ripple control, as well as EMC compliance. It is the ideal regulator solution for a variety of applications requiring a combination of low noise, high efficiency, and high PSRR.

The working principle of the S-812C42BPI-C4WTFU is very straightforward: the internal switching regulation loop continuously monitors the output voltage and adjusts the duty cycle of the switches to maintain the desired output voltage. The internal current limit feature of the series protects the device from excessive current due to any short circuit condition. Additionally, the output voltage is stabilized against changes in current by the internal voltage feedback loop.

The S-812C42BPI-C4WTFU is suitable for a range of applications including notebook computer, LCD monitors, medical batteries, vehicle and motor power supplies, video cameras, surveillance systems, and other industrial and consumer applications requiring precision control and low noise output.

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