TPS64202DBVT Integrated Circuits (ICs)

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The TPS64202DBVT is a DC-DC switching controller with versatile power supply applications in the industrial, communications and consumer electronics markets. It is a two-phase non-synchronous buck controller that delivers high power efficiency, flexibility and low quiescent current. It has a small package footprint and provides a true “plug and play” solution. The TPS64202DBVT enables up to four switching converters to form a complete power supply system.

The TPS64202DBVT is a current-mode controller that can manage simple buck converters or multiple phase interleaved converters. It does this with a programming pin that can select either single-phase or dual-phase operation, with an adjustable current limit over the full range of load currents. In addition, it offers load-dependent frequency control, precision switching current limit and over-voltage, over-temperature and under-voltage protection.

The TPS64202DBVT can be configured with a variety of system level components to provide a low-cost solution for applications such as digital cameras, camcorders, digital imaging, cell phones, LCD TVs, DVD recorders and players, gaming systems and other digital audio and video systems. Its flexibility makes it suitable for powering a wide range of ICs, such as DSPs, FPGAs, DSCs, ASSPs, ASICs, ADCs and DACs.

The TPS64202DBVT supports a wide input voltage range from 4.5V to 18V and comes with integrated low-side MOSFET and high-side switching devices. It features an adjustable switching frequency, excellent load and line regulation over the specified temperature range, and tight load and line transient response. The device also supports a wide variety of advanced power management techniques, such as dynamic voltage scaling and droop compensation.

The TPS64202DBVT supports a current limit range from 0.2 - 1.2A and includes an external low-side switch, a driver current-sense amplifier and a low-pass filter. The current-sense amplifier is used to adjust the duty cycle of the power stage according to the magnitude of the output load current. The use of an external low-side switch allows for low-side optimisation.

The TPS64202DBVT also has an adjustable soft-start and adjustable UVLO thresholds. It offers power-up, power-down and power-good signals and allows for the implementation of over-temperature protection, which can be used when the output voltage rises above the selected temperature limit. In addition, the device provides overtemperature warning, overload protection and under-voltage lockout.

The TPS64202DBVT can also be used as a digital to analogue converter (DAC) for higher output accuracy and improved efficiency. With its wide range of options and flexibility, the TPS64202DBVT can meet the toughest requirements of technical and cost driven applications. It is ideal for use in high-density power systems, including home entertainment, handheld, automotive and industrial applications.

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