LP87321Q1EVM

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The LP87321Q1EVM stands for the Evaluation Card of Linear Technology\'s new ultra-low power AEC-Q100-compliant buck regulator. This evaluation board is designed to evaluate the performance of the LP87321Q1, an automotive qualified buck regulator IC from Linear Technology. This regulator IC is an ultra-low-power device with power-good protection and has a typical dropout voltage of 200mV at up to 450mA of output current. This board is suitable for prototyping DC-DC buck converters, systems that require precise voltage regulation, and other applications where high efficiency and low power consumption is desired.

The Evaluation Board of LP87321Q1EVM has a well-designed layout along with 4 distinct output channels, allowing it to serve as a powerful tool for the evaluation and optimization of the switch mode regulator IC it houses. This board has 3 isolated power inputs, which can be powered from a single or multiple sources. It also includes a dual-output NVCC terminal for providing the necessary power to the load. The EVM consists of voltage, ground, current, and other versatile input/output connections which can be used for design and control signals.

LP87321Q1EVM Application Field And Working Principle

The LP87321Q1EVM is ideal for a range of applications involving system voltage regulation, transient protection, and efficiency optimization. It can be used in applications such as automotive, computer, consumer, industrial, medical, and communications systems. The LP87321Q1EVM also features an optional output voltage cap monitor, an output voltage ramp time adjustment function, and an over-temperature protection circuit.

The LP87321Q1EVM offers a combination of features suitable for both AC-DC and DC-DC switch mode power supply (SMPS) applications. The board employs Linear Technology’s new LP87321Q1 IC to provide a high-efficiency, low-power solution for buck regulators. This IC operates in a quasi-resonant flyback topology with PWM and cycle-by-cycle current limit, allowing it to achieve high efficiency (over 92%, stated by manufacturer). In order to further improve efficiency, the IC has an ON/OFF duty cycle control and a flexible Frequency Reduction mode that improves efficiency over light and medium loads.

The LP87321Q1EVM is well suited for applications where highly efficient, low-power solutions are required. This IC features high integration, low power consumption and a wide range of operating frequencies (up to 1MHz). The device also provides under-voltage, over-voltage, current limit, and thermal protection to ensure safety, reliability and a long product life. The IC is also suitable for use in applications where space is at a premium.

Overall, the LP87321Q1EVM is a powerful evaluation board offering designers the ability to rapidly and thoroughly develop and test a wide range of AC-DC and DC-DC SMPS solutions. The board is also capable of providing advanced control features as well as robust protection, allowing designers to optimize their designs and ensure reliable end-products.

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