TPS40211DRCRG4

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In the power management and control field, the TPS40211DRCRG4 is a DC to DC controller IC designed to provide design engineers with the flexibility to efficiently manage and control the power input in a variety of common applications, such as those found in industrial, embedded and portable electronics. It can convert unwanted power into a required voltage output with high efficiency, low noise and minimal component count. The TPS40211DRCRG4 is used in a range of power supply designs as it is suited to operate with a wide range of input voltages and is capable of delivering up to 3A output current.

The TPS40211DRCRG4 features a current mode architecture with a buck-type topology. It includes several features to allow for a wide range of applications, including an adjustable operating frequency between 250kHz and 1MHz, adjustable current limits, enable pin, as well as cycle-by-cycle current limiting and thermal shutdown, making it well-suited for cost-sensitive designs. Additionally, it is suited for input voltages ranging from 4.5V to 38V and can generate an output voltage in the range of 0.6V to 5.5V.

The current mode architecture of the TPS40211DRCRG4 operates with a fixed frequency oscillator that increases its efficiency by eight to 10 percent. It uses the consumption of the output inductor current as its main control parameter, allowing it to precisely deliver current to the output. The current sense is provided by a voltage placed across the output inductor, which is provided externally at the ISENSE pin. The maximum switching frequency is determined by the external timer components. A circuit charges up a timing capacitor until the voltage generated across it reaches the internal reference voltage, which triggers the OFF signal that stops the switching cycle on the output stage.

The TPS40211DRCRG4 includes variable switch current limit and adjustable power stage frequency along with adjustable output voltage, making it ideal for use in cost-sensitive designs. Furthermore, it features an external shutdown pin, which enables the user to shut down the device, allowing it to consume less power while not in use. The device also features internal short-circuit protection, thermal shutdown and soft-start functions that protect the device during a fault or start-up.

The TPS40211DRCRG4 includes all of the necessary components to build a robust, cost effective switched-mode power supply in a range of applications, including, but not limited to, industrial and embedded systems, power supplies for server and networking applications, chargers for portable electronics, and automotive and audio applications. The combination of its features and switch mode architecture make it an ideal choice for maximizing performance and cost effectiveness in designs in these application fields and beyond.

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