A5972D

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PMIC - Voltage Regulators - DC DC Switching Regulators

A5972D is a type of DC DC switching regulator which is widely used in various applications. This voltage regulator offers superior performance and power efficiency. It is specially designed to deliver a constant voltage output in the presence of large transients. Additionally, it has the capability to automatically adjust its output voltage according to changes in its input voltage or load conditions. It offers a wide range of protection against over-voltage, under-voltage, EMI/RFI and short-circuiting.

The A5972D voltage regulator offers a wide input voltage range of 4.5V to 20V, and an output voltage range from 1.2V to 7V. This voltage regulator is available in single-phase and multi-phase output configurations. It is capable of delivering up to 10A of output current. It also features a high switching frequency (3MHz) and low-noise operation. Moreover, it features thermal shutdown for added protection against high temperatures.

The A5972D voltage regulator utilizes a buck-boost topology which ensures that the output voltage is maintained in the presence of large differences between the input and output voltages. It is composed of two switching MOSFETs, an internal semiconductor switch and an internal control loop. The internal MOSFETs and the semiconductor switch are designed to operate at a high switching frequency (3MHz) to reduce the total output ripple. The control loop is specially designed to sense the difference between the input and output voltage and adjusts the duty cycle to maintain a constant output voltage.

This voltage regulator utilizes synchronous rectification to further improve its power efficiency. The duty cycle is adjusted so that during the switch-on times, current flows from the input to the output whereas during the switch-off times, the current in the inductor flows back to the input, reducing the power loss in the inductor.

The A5972D voltage regulator is a highly efficient switching regulator capable of providing a constant voltage output in the presence of large transients. It offers a wide input voltage range, a high switching frequency, synchronous rectification, and a wide array of protection functions. It is available in a range of package sizes and is suitable for a variety of applications including portable electronics, consumer electronics, industrial, automotive and telecommunications.

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