TPS43340QPHPRQ1 Integrated Circuits (ICs)

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TPS43340QPHPRQ1 is a synchronous buck controller that is used in voltage regulation and switching circuits. This integrated solution is ideal for power sensitive applications such as portable systems, electric vehicles, telecom and networking, and industrial. It has been designed to provide high efficiency at low output current, low-power quiescent behavior, and enables a high power density. It offers superior dynamic response to line and load transients, and can accommodate a wide variety of input, output, and power train capacitance.

The TPS43340QPHPRQ1 features an ultra-low quiescent current of only 1.5-µA when in Sleep mode and a wide input voltage range of 5 V to 38 V. It also features fanless operation as well as a wide selection of maximum and minimum output-voltage options. Additionally, this device offers synchronous and isolated buck operation, allowing it to be used in a variety of applications. The TPS43340QPHPRQ1 supports a programmable frequency range from 200 kHz to 2 MHz and supports both fast-transition and spread-spectrum modulated modes.

The TPS43340QPHPRQ1 combines the linear regulator and switching converter into a single chip. The linear regulator section regulates a DC power output from a battery or unregulated supply. The linear regulator is a voltage follower, with the output voltage following the input by a few hundred millivolts. This provides low noise, and allows the output voltage to remain constant even when the input voltage varies. The switching converter section is the main section of the device and provides power conversion from the input voltage to the output voltage. The switching converter in the TPS43340QPHPRQ1 utilizes a synchronous buck topology.

The TPS43340QPHPRQ1 synchronous buck controller works by taking an unregulated supply or battery voltage and using a series of MOSFETs to switch the voltage down to a regulated output voltage level. The buck controller monitors the output continuously and adjusts the MOSFETs based on the needs of the system. By switching the MOSFETs at a higher frequency, the voltage can be converted to the desired level without a significant loss in efficiency.

The TPS43340QPHPRQ1 synchronous buck controller is ideal for use in portable systems and other power sensitive applications because of its low quiescent current and high efficiency. It provides superior dynamic response to line and load transients, and can accommodate a wide variety of input, output, and power train capacitance. Additionally, the device allows users to customize the operating frequency to meet application requirements and supports both fast-transition and spread-spectrum modulated modes.

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