S-1142B40H-E6T2U

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Linear voltage regulators are devices that adjust the positive or negative output voltage of a power supply to a specific value using only active components, such as transistors and diodes, and passive components, such as resistors and capacitors. This form of voltage regulation is often referred to as linear because the output voltage is matched to the reference voltage in a linear manner. They are used to stabilize the output voltage of power supplies and to reduce the amount of ripple in the power supply.The S-1142B40H-E6T2U is an adjustable, low dropout linear voltage regulator. It offers a wide adjustable output voltage range of 0.8 V to 17 V and continuous output current of up to 1.2 A. It features a low quiescent current of only 8 µA, and high output current spikes up to 2 A. The device also features very low output noise, high PSRR, and high load regulation.

The S-1142B40H-E6T2U is designed for use in a wide variety of applications including digital TV/ set top boxes, computer peripherals, gaming systems, automotive and industrial control systems, and multi-output regulators. It is especially well suited for high power output applications that require low noise and high efficiency. Its wide input voltage range and high efficiency make it an ideal choice for applications in which power consumption is critical or when a higher output voltage is needed.

The S-1142B40H-E6T2U works by comparing the reference voltage (VREF) to a error amplifier (EA). The difference is then amplified by the EA and the amplified signal is then applied to the gate of the pass element, which is typically an N-channel MOSFET. The voltage across the pass element is used to set the output voltage. The pass element switches on and off at a frequency determined by the device’s on-time (TON) and off-time (TOFF) periods. When it is ON, it passes current from the input to the output, and when it is OFF, it blocks current flow. As the output current increases, the on-time and off-time periods adjust accordingly, ensuring that the output voltage remains constant.

The S-1142B40H-E6T2U also features a slew rate control circuit to reduce transients. This increases the stability of the output voltage even during high frequency load transients. It also helps reduce output noise, which is beneficial for applications requiring low noise such as audio systems. The device also features feed-forward control to boost the output current in order to maintain a constant output voltage during heavy loads while keeping the output temperature within safe limits.

The S-1142B40H-E6T2U provides high levels of efficiency and output noise for industrial applications, automotive systems and data processing systems requiring high voltage accuracy, low ripple and low dropout. With excellent load and line regulation as well as a wide operating temperature range, this device is an ideal choice for applications demanding high precision voltage regulation.

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