TPS53659RSBR

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TPS53659RSBR application field and working principle

The Texas Instruments TPS53659RSBR is a single-phase, high-efficiency DC-DC step-down power regulator whose primary application field is the servers, telecom systems, and embedded applications that require voltage regulation. The device is designed to convert input voltages of 18V to 22V and outputs a regulated output voltage in the range of 0.8V to 15V. The TPS53659RSBR is ideal for applications where reliable voltage regulation and low noise levels are required.

The device uses a unique synchronous buck architecture that utilizes two power switches and two integrated low-resistance synchronous MOSFETs. It is capable of regulating an output voltage with an accuracy of 2.5% over line and load variations, making it ideal for high-end applications. The TPS53659RSBR also includes integrated frequency jittering, which reduces EMI without any external circuitry. This also increases the efficiency of the device, resulting in higher system performance.

When the enable pin is low, the device enters the power-saving mode and draws very low quiescent current. At the same time, the device performs a soft-start on power-up to reduce in-rush current and overshoot. The device also features internal over-voltage protection, over-current protection (OCP), thermal shutdown protection, and under-voltage lockout (UVLO). These safety features protect the device and the system components if an abnormal condition occurs.

The TPS53659RSBR features an adjustable, high-efficiency synchronous output stage. The switching frequency and current limit can be adjusted through the on-board resistor network. This allows the end user to optimize system performance and noise levels according to the requirements of their application. The TPS53659RSBR also offers pre-biased startup capability, allowing the user to power up the system without having to add external circuitry.

Overall, the TPS53659RSBR is an ideal solution for applications that require low noise, high efficiency, and reliable voltage regulation. It can be used in a variety of applications such as servers, telecom systems, and embedded systems. The device includes a range of safety features and an adjustable, high-efficiency synchronous output stage for optimized system performance.

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