TPS61021DSGT

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PMIC (Power Management IC) devices are electronic components that manage the power present in a system. They help provide a reliable power source, improve safety and maintain performance. Voltage Regulators are a type of PMIC device used to regulate, or adjust, the voltage of a power source. DC DC Switching Regulators are among the most popular types of Voltage Regulators and can be used for applications such as DC-to-DC voltage conversion and supplying power to other components in a system. One DC DC Switching Regulator commonly used for these applications is the Texas Instruments TPS61021DSGT.

The TPS61021DSGT is a step-down DC DC switching regulator that has integrated power FETs with low RDS(ON) suitable for a wide range of applications. The device has high efficiency and low thermal performance while delivering up to 300mA maximum output current. It can operate within a wide input voltage range of 2.7V to 5.5V and is capable of providing a wide output voltage range of 0.4V to 2.4V. The device is available in ultra-small packages such as WCSP, UQFN and SOT-23 and has an adjustable switching frequency from 300kHz to 1.2MHz. The on-board current sensing tracks an output voltage that is accurate to within ±1.0% of the programmed value.

The TPS61021DSGT DC DC Switching Regulator has a variety of field applications. It is suitable for a range of mobile and battery powered applications such as portable communication devices, laptop or notebook computers, digital cameras and audio players. In addition, the device can be used to power voltage converters, provide LCD backlight and charge batteries via USB port. It is also suitable for a range of power supply applications such as powering FPGAs, ADC and DAC.

The operating principle of the TPS61021DSGT is based on a pulse width modulation (PWM) switching topology. This topology is chosen because it provides high efficiency and flexibility. The part includes a synchronous rectifier which eliminates diode losses in order to maintain higher overall efficiency. It also includes an output voltage sensing circuit that allows the device to remain in the frequency foldback region, providing a minimum load current during low load conditions. This increases efficiency and helps reduce output voltage ripple.

The TPS61021DSGT DC DC Switching Regulator is an ideal solution for portable and battery powered applications where size, efficiency and accuracy are of the utmost importance. Its wide operating range and adjustable switching frequency give it the flexibility to be used in a variety of applications. Its advanced design ensures high efficiency and accuracy while eliminating diode losses. The device is available in small, space-saving packages which make it ideal for applications with tight form factors and space constraints. Its integrated current sensing permits an output voltage accuracy within ±1.0% of the programmed value, making it an excellent choice for applications where output voltage accuracy is critical.

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