RT2859AHGQW

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The RT2859AHGQW is a DC DC switching regulator integrated circuit. It is a DC-DC buck converter with an adjustable output voltage, ideally suited for a variety of different applications. This article will discuss the application field and working principle of the RT2859AHGQW.The RT2859AHGQW is part of the RT2859HGQW family of DC/DC buck converters from ROHM. It is designed for applications that require high efficiency, fast transient response, and low output voltage ripple. It can be used for a wide range of different applications, including automotive, industrial, communication and computing, and telecom equipment.The RT2859AHGQW is designed for use in systems that require an adjustable output voltage, such as in LED lighting, LED lighting diodes, LED TV backlights, and LED monitor backlights. It is also suitable for applications such as automotive, industrial, and medical devices. This IC has been tested and certified compliant by the Automotive Electronics Council (AEC).The RT2859AHGQW operates by switching the power supply input at a fixed frequency to create an alternating output voltage that can be adjusted to the desired level via an external resistive-network. The device is capable of tolerating an input voltage range from 4.5V to 16V and can be used in 12V, 14V, or 24V applications. The output format is adjustable from 0.8V to 13.2V, and is capable of providing an output power of up to 10.5W.The RT2859AHGQW features a soft-start circuit, current limiting, and voltage limiting functions. The current limit is adjustable, and the voltage limit can be set externally with a resistor. Additionally, the IC includes an anti-ringing circuit to reduce EMI and to minimize switching noise. It also has a programmable soft-start time to reduce inrush current.The device includes a power-good indicator to indicate when the output voltage is within tolerance. Further protection features include thermal shutdown, short-circuit protection, and over-current protection. The RT2859AHGQWalso features a burst mode for low power consumption, as well as a sleep-mode for increased efficiency in standby operation.Overall, the RT2859AHGQW is an excellent choice for applications requiring an adjustable DC/DC buck converter. It offers high efficiency, low noise, and a wide input voltage range. It is designed for use in applications such as automotive, industrial, and medical devices, as well as LED lighting and display applications. With its easy-to-use adjustable control, fast transient response, and high power output, the RT2859AHGQW is an ideal choice for designers and engineers.

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