TPS61256AYFFR

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The TPS61256AYFFR integrated circuit is a synchronous buck regulator of the Performance Line family of Texas Instruments. This device provides premium power solutions and advanced power management systems with minimal effort, reduced cost and smaller product footprint. This integrated circuit is designed to be implemented in applications such as point-of-load DC-DC converters and portable electronic devices which require a high-efficiency, high-power solution.

The TPS61256AYFFR is synchronous buck regulator producing an output voltage ranging from 0.8V to 3.3V and the switching frequency range is from 300KHz to 1.4MHz. It features an internal 200mOhm, 1.4A synchronous buck switch and an internal 0.35Ω Schottky diode to reduce power consumption and supply voltages from 1.8V to 6V. In addition, this device also features programmable current-limit protection and over-voltage protection for load-side regulation.

The synchronous buck regulator operates by continuously switching the output voltage from its input voltage source. During each switching cycle, the switch connects the input voltage to the inductor and then briefly stores the energy into the output capacitor. During the switch off cycle, the inductor current is transferred to the output capacitor and maintains the output voltage. These switching cycles occur at a fixed frequency and are controlled by the internal clock, which means that the output voltage can be regulated by adjusting the duty cycle to adjust the output voltage without incurring noise over a wide frequency range.

The TPS61256AYFFR also comes with many built-in protection features, such as over-voltage protection, under-voltage protection, and overload protection. Furthermore, this device has low power consumption, a low quiescent current, and a wide operating temperature range from -40°C to 125°C. This makes it ideal for use in power critical applications such as tablet PCs, cable modems, and industrial machinery.

With its high output current, wide output voltage range, low power consumption, and advanced protection features, the TPS61256AYFFR is an excellent choice for various applications requiring a robust and advanced DC-DC buck regulator. It is suitable for Point of Load (POL) converters, and provides a cost-effective and compact solution for high current, high accuracy DC-DC power conversion applications.

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