RT7250AZSP

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RT7250AZSP is a pocket-sized, DC-DC switching regulator designed and manufactured by Richtek technology corporation. It is designed to operate from input voltage ranges of up to 96 V and provides up to 36 V nominal output. With a wide range of features, RT7250AZSP is highly suitable for various applications such as cellular phones, PDAs, and other portable/mobile devices.

The RT7250AZSP is designed to provide a well-regulated supply voltage under all types of conditions while providing current-mode control with the ability to sense an output voltage. In addition, the regulator is equipped with protection features such as input under-voltage lockout(UVLO) and internal thermal shutdown for supplying a user-defined current limit. The device can also be set up for both pulse frequency modulation (PF1) and pulse width modulation (PWM) for optimal performance.

The RT7250AZSP includes differential remote sensing for accurate regulation of the output voltage. It senses the output voltage from the remote point, rather than from the device itself. This increases efficiency and provides improved accuracy when supplying a very high power to a load. The device is designed to start up in Auto-Tracking mode, which is a dual-mode feature that lets the user switch between two output voltage levels without any external signal input.

The RT7250AZSP also features a built-in auto-discharge unit which can help the user maintain a constant output voltage. It ensures that the output voltage does not exceed the pre-set value and helps to reduce power consumption. The device comes with a wide range of settings, such as automatic burst mode, frequency control, switching frequency, soft start control, and over-current protection.

The RT7250AZSP operates by using a Pulse Width Modulation (PWM) technique. It monitors the current and voltage on the output, senses the difference between the two, and then adjusts the duty cycle of the switch accordingly. This PWM provides continuous control of the output voltage and current, ensuring efficient operation and better power transfer to the load. The device can also be programmed to provide a pulse frequency modulation (PFM) control mode.

The RT7250AZSP is a versatile DC-DC switching regulator that can be used in a variety of applications ranging from automotive and industrial electronics to telecommunication and personal electronics. Its wide range of features, as well as its ability to accurately regulate the output voltage, make it an ideal choice for applications that require a wide input voltage range and a highly adjustable output voltage. With its options for both PWM and PFM control, it is also capable of handling different types of loads with different power or voltage requirements.

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