TPS62043DGQ

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TPS62043DGQ Application Field and Working Principle

The TPS62043DGQ is a DC/DC switching regulator, specifically a buck converter, manufactured by Texas Instruments. As a buck converter regulator, it helps provide a stable supply of power to an interconnected circuit, regardless of any variations in the input power. This makes it valuable in many applications such as smartphones, tablets, IoT devices, wearables, optical fiber transceivers, motion and power control systems, and smart home accessories.

Using pulse-width modulation technology, the TPS62043DGQ is able to convert an input voltage of 1.8V to 12V down to an adjustable output voltage of 0.9V to 5.5V. This is done by quickly switching on and off an external power-switching device at an adjustable frequency, controlled by an internal oscillator. For example, if the output voltage is set to 3V, the buck switch will vary the width of the pulses to regulate the output voltage such that it is always at 3V. Since the TPS62043DGQ operates at high frequency, it is much more efficient than traditional linear voltage regulators.

The TPS62043DGQ converter also has a very fast transient response, which means that it can quickly respond to any sudden external voltage changes without sacrificing efficiency. It also has two different operating modes: forced and forced-bypass mode. In forced mode, the converter operates in continuous cycle mode, where the switching frequency is constant and the output is regulated by either the internal oscillator or by an external clock. In forced-bypass mode, the converter operates in a burst mode, where the operating frequency is determined by the external clock.

The TPS62043DGQ is also designed for low quiescent current operation, with typical quiescent current of just 0.75mA. This helps reduce power consumption and keeps the output voltage regulated even when the input voltage is low. Additionally, the TPS62043DGQ features integrated input and output EMI filters, which helps reduce EMI noise and prevents interference from external sources.

Overall, the TPS62043DGQ is an excellent choice for applications requiring precise voltage regulation, fast transient response and low power consumption. It is very reliable, highly efficient and designed for low cost power solutions. It is also a great choice for low voltage applications such as wearables and IoT devices.

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