TPS62365EVM-655

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TPS62365EVM-655 is an evaluation module of an integrated, 4-µA quiescent current, 5-V output, DC/DC step-down converter with an adjustable output from 0.546V to 5V. It is part of the family of ultra-low quiescent current, synchronous DC/DC step-down converters. This evaluation module is commonly used for applications such as low-power wireless baseband, portable health and measurement devices, wearable products and many others.

The TPS62365EVM-655 uses a Texas Instruments (TI) TPS623XX regulator device to increase efficiency, reduce power consumption, and improve dynamic response. It is designed with an adjustable output voltage and accepts an input voltage of up to 6V. It is also capable of providing up to 500mA of output current with efficiency of up to 90%. It also features an overload, over-temperature, and under-voltage protection to ensure safety. The evaluation module can be modified to meet the needs of the application in terms of output voltage, output current, efficiency, and other characteristics.

The TPS62365EVM-655 works on the principle of an externally-controlled independent DC/DC converter. It uses a two-level voltage feedback loop to control the output voltage of the converter. The first level is the internal feedback loop that measures the output voltage and dynamically tunes the duty cycle of the switch in order to maintain the output voltage. The second level is the external feedback loop which is used to adjust the output voltage in the case of an under- or over-voltage. It also uses a combination of pulse-width modulation (PWM) and pulse-frequency modulation (PFM), depending on the load, to improve efficiency.

The TPS62365EVM-655 also makes use of a few other advanced features that increase efficiency and reduce current consumption. One of these features is an “ultra-low power-off mode” which allows the system to enter a low power state to reduce current consumption when not in use. This feature utilizes an input power-on signal and a wakeup signal to quickly exit the power-off state when enabled. The TPS62365EVM-655 also has a FastStart feature that reduces the time for output voltage to stabilize after a reset to 10µs, thus reducing current consumption and increasing responsiveness.

The TPS62365EVM-655 is commonly used for applications requiring a low-power DC/DC converter such as low-power wireless baseband, portable health and measurement devices, wearable products, battery-powered systems, and many more. It is equipped with protection features like over-temperature, overload, and under-voltage protection to ensure stability and safety. The high efficiency, low quiescent current, and dynamic response make it an ideal choice for these applications.

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