TPS54201DDCR

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TPS54201DDCR is a high-speed switching regulator packaged in a tiny 2mm ✕ 2mm 8-pin VQFN package, capable of driving up to 16V output voltage with a ± 0.85% accuracy. It is designed to comply with the requirements of industrial, telecom, computing and automotive applications. The device offers excellent transient response and high DC accuracy, making it suitable for both point-of-load and low output voltage applications.

The narrow feedback voltage range of the device allows for simpler circuit designs and makes it easier to provide the required output accuracy for general-purpose and telecom applications. The low quiescent current of the TPS54201DDCR allows for less heat dissipation, enhanced power efficiency, and lower cost solutions.

The main application fields of TPS54201DDCR include notebook computers, networking,HVAC/R, telecom, and industrial. It can be used with external MOSFETs and inductors available in surface mount and through-hole packages to generate output voltages ranging from 25mV to 16V.

The Working Principle of TPS54201DDCR

The TPS54201DDCR works on a buck switching regulator topology. The internal switch is a rated frequency of 800kHz, capable of handling output currents up to 200mA. It is highly efficient due to its low quiescent current and a programmable frequency that allows for better system optimization.

The device features a switching frequency in the range of 200kHz to 1MHz, allowing for higher efficiency while providing a very competitive cost-to-performance ratio. The buck switching regulator topology also features a non-synchronous rectification stage, allowing for very low output voltage ripple and excellent response to step loads.

The device features over current protection, short circuit protection, thermal shutdown, and a wide range of overvoltage protection features. The cycle-by-cycle current limit protects the internal switch and the output during over current conditions.

The device includes a power-on reset circuit to ensure proper logic level states for enabling and disabling the internal switchers. The reset circuit is capable of providing reset signals with 3.2V, 2.5V and 1.8V thresholds between VCC and ground, depending on the junction temperature.

The device also includes thermal shutdown, an analog voltage monitor for adjustable warning thresholds, and an adjustable offset for regulating the internal switching threshold. The adjustable switch threshold allows for different voltage drops across the output, allowing for energy savings in light load applications.

The TPS54201DDCR also features a voltage tracking mode and a soft start feature, which allow for smooth and linear transient response and ensures consistent output voltage during turn-on. The voltage tracking mode ensures that the output of the regulator tracks the input, making it ideal for applications where the input voltage is varying significantly.

Overall, the TPS54201DDCR is an extremely efficient and cost-effective switching regulator and is suitable for a wide range of high power applications. It offers excellent transient performance and low output ripple, allowing for higher accuracy and greater efficiency. Its low quiescent current and a wide range of protection and tracking features make it an ideal choice for high power applications.

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