1301460143

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Part Status:	Active

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1301460143 is a high power low cost switching buck regulator integrated circuit, which is widely used in multiple applications such as industrial, automotive, and consumer electronics. It lowers system costs by providing an integrated buck-boost regulator with multiple adjustable output current capabilities. Additionally, it also reduces system power consumption by providing both dynamic and static power reduction features.The 1301460143 switching buck regulator consists of a power stage, a gate drive stage, and a control logic stage. The power stage is made up of a rectifier, an inductor, a filter capacitor, and a power MOSFET. The rectifier rectifies the incoming AC power and supplies a DC voltage to the load. The inductor acts as an energy storage element, supplying constant current to the load. The filter capacitor filters any residual ripple currents from the output, ensuring a clean power supply. The power MOSFET acts as a switch, controlling the current flow from the input to the output.In the gate drive stage, a pre-biased output voltage is detected by the differential amplifier and the delta-sigma modulator, and the detected signal is compared with the desired output voltage. If the difference is large, the error amplifiers sense the difference and provide a correct control voltage for the MOSFET. The error amplifier provides a pulse width modulation (PWM) signal as well, which is further smoothened by the averaging filter. This smoothened PWM signal is then used to drive the power MOSFET.The logic stage incorporates a latch circuit, a reference circuitry, and a voltage detector. The latch circuit is used to generate the start-up voltage for the power MOSFET. The voltage detector provides an output signal when the input voltage rises above a certain level. The reference circuitry compares the output voltage to a fixed voltage and provides a feedback voltage for the comparator. This comparison helps to maintain a stable output voltage.The 1301460143 switching buck regulator is mainly used in powering high-efficiency, low-power systems such as LEDs, computers, and televisions. Its ability to maintain a stable output voltage even when there is a wide range of input voltage reduces the system’s power consumption significantly. The device can also provide a wide range of adjustable output current capabilities which allow it to be used in various applications.

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