MAX16933ATIR/V+

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The MAX16933ATIR/V+ is a DC-DC switching controller from Texas Instruments. It is designed to provide an integrated and cost-effective solution for multiple Power-Over-Ethernet (PoE) applications. It operates from a single 9V to 48V supply, providing an adjustable output voltage up to 15V. The device operates with a high efficiency of up to 94%, providing up to 4A continuous output current.

The MAX16933ATIR/V+ offers multiple features that make it ideal for a wide range of applications. It includes integrated switching, linear regulator, and power-on reset circuitry. It also includes an adjustable voltage-mode control, adjustable current-mode control, and programmable clock operation. Additional features include protection against over-voltage, under-voltage, and over-current conditions. The device supports variable control frequency, spreading its switching frequency or switching rate to minimize noise and EMI.

The MAX16933ATIR/V+ is designed for power supply topologies such as buck, boost, and SEPIC. It also has an adjustable switch voltage collapse (VCOM) to deliver more juice when needed. With its integrated linear regulator, the device can provide low-power needs as well as high-power requirements. The device is also programmable with various features such as adjustable programming of minimum on-time, minimum off-time, and switching transient times for improved noise and EMI performance.

The main application field for the MAX16933ATIR/V+ is Power-Over-Ethernet systems. These systems require an integrated power supply solution that can provide adjustable and reliable output voltage. With its high efficiency, low-noise switching, high peak current capability, adjustable linear output voltage, and other features, the device is ideal for PoE applications. It is also used in other applications such as distributed power systems, telecom central office power supplies, automotive power systems, and industrial applications.

The working principle of the MAX16933ATIR/V+ is based on a regulation technique known as Pulse Width Modulation (PWM). This technique is used to regulate the output voltage of the device by continuously switching the output current at a certain frequency. The frequency can be adjusted, depending on the application and the desired output voltage. By slowly reducing the frequency, the output voltage can be effectively regulated.

The MAX16933ATIR/V+ is a high-performance, cost-effective integrated solution for various switching and linear power-over-Ethernet applications. With its adjustable frequency, adjustable output voltage and other features, it is an ideal solution for PoE applications as well as other applications. It also features integrated linear regulator, power-on reset, and over-voltage, under-voltage, and over-current protection. This makes it an ideal device for a wide range of DC-DC switching applications.

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