ISL8273MAIRZ-T

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DC-DC converters are electrical devices used in a variety of applications, from automotive and industrial to consumer electronics. The ISL8273MAIRZ-T is a two-phase DC-DC synchronous buck converter that is capable of delivering up to 3A of current at a variable input voltage up to 21V. It offers high efficiency over a wide range of load and input conditions, making it an ideal choice for modern power-management applications.

The ISL8273MAIRZ-T operates with a wide input voltage range of 2.97V to 21V. It features an on-die synchronous MOSFET capable of delivering up to 3A of current. The integrated MOSFET allows the ISL8273MAIRZ-T to operate with efficiencies up to 97% across a wide range of load and input conditions. It also has a low quiescent current of just 50uA, making it ideal for low-power, high-efficiency applications.

The ISL8273MAIRZ-T provides a wide range of features, such as programmable under-voltage lockout, over-voltage protection, peak current limit, and programmable soft-start. It also comes with built-in protection against short-circuits, thermal shutdown, and over-voltage protection. These features help to ensure the highest level of reliability in any application.

In terms of application field, the ISL8273MAIRZ-T is suitable for a variety of tasks, such as point-of-load (POL) power, computer and network equipment, communication systems, computer peripherals, automotive power, and consumer electronics. Its wide input voltage range and high efficiency make it ideal for high-end applications that require high performance and reliable delivery of power.

In terms of working principle, the ISL8273MAIRZ-T utilizes a synchronous buck topology. Synchronous buck topology provides excellent efficiency and has spread rapidly in the applications for DC/DC conversion. In this topology, the two switches are capable of either connecting the input voltage source directly to the output or connecting the input voltage source to ground. This topology results in higher efficiency, low noise, and low input and output capacitor requirements.

When the two switches are in the "on" state, the input voltage source is connected directly to the output and power is transferred from the input to the output. The output voltage is regulated by varying the duty cycle of the two switches. When the two switches are in the "off" state, the input voltage source is disconnected from the output and power is stored in the output capacitor. This stored energy is then used to maintain the output voltage level.

Overall, the ISL8273MAIRZ-T is an ideal choice for a wide range of power-management applications. Its wide input voltage range and high efficiency make it an ideal choice for high-end applications that require high performance and reliable delivery of power. Additionally, its built-in protection features and synchronous buck topology make it an ideal choice for any application that requires low-power, high-efficiency, and reliable operation.

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