TPS40210DRCT Integrated Circuits (ICs)

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The TPS40210DRCT from Texas Instruments is a buck switching voltage regulator controller with many features, which make it attractive for a wide variety of applications. With the help of its excellent noise performance and low quiescent current, it is suitable for applications such as general purposes, medical equipments and wireless communications. This article will discuss its application field, working principle and other features.

The TPS40210DRCT is designed with an advanced CMOS process and an adjustable frequency operating range of 200kHz to 1.3MHz. It can be used to regulate electrical inputs anywhere from 3V to 19V into outputs down to 0.6V. Additionally, a single resistor can be used to program the output voltage. As such, the TPS40210DRCT can provide a high level of accuracy and very low output voltage ripple.

This controller also features integrated undervoltage lockout protection, which automatically shuts off the controller when the input voltage falls below the pre-programmed level. The TPS40210DRCT also delivers excellent output current up to 8A and the power dithering cycle can be programmed to sharpen output response. This added feature helps to reduce output inductor size, eliminate audible noise and increase system efficiency. Moreover, the TPS40210DRCT integrates two independent, 80mV feedback error amplifiers with unity gain bandwidth up to 500kHz for high speed loop compensation.

As such, the TPS40210DRCT is a highly versatile regulator controller, with many features that make it suitable for use in a wide range of applications. The device is also highly efficient, with a typical switch on-resistance of 0.19 ohms and its integrated error amplifier gives excellent noise performance and a low quiescent current. As such, it is an ideal choice for applications such as general purposes, medical equipment and communications systems.

In terms of working principle, the TPS40210DRCT is an indirect-action buck switch regulator. It takes power from an input source such as an AC adapter or battery and regulates the output voltage to the desired level. This is achieved by using a pulse-width modulation (PWM) technique in order to control the switch on and off time of a field effect transistor (FET) that is connected to the output node. The on-time is then adjusted with respect to the feedback voltage of the output to maintain the predetermined output voltage. This technique enables high efficiency and accurate output voltage.

Thus, the TPS40210DRCT from Texas Instruments is an ideal choice for a wide variety of applications, such as general purposes, medical equipment and wireless communications. It has a wide operating range, integrated protection features and excellent noise performance, coupled with a low quiescent current. Additionally, its operating frequency can be programmed to optimize system efficiency and it is an indirect-action buck switch regulator, achieving high efficiency and accurate output voltage levels.

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