TPS40090PW

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TPS40090PW is a voltage regulator of the DC DC switching controller family. It has a wide range of application fields. It is usually used as an adjustable frequency controller to provide a constant current or voltage to the load. The TPS40090PW offers a highly interchangeable voltage regulation scheme with integrated synchronous MOSFETs power switches and low voltage drop linear regulators.

It is suitable for a variety of DC/DC applications, with the ability to control current or voltage. Its adjustable frequency operation helps reduce the size of the magnetic components. Some of the application areas where it is applicable are: data center, communications, server, RAM, and low-power medical equipment.

The TPS40090PW also has a robust and energy efficient design, with a wide operating temperature range, and a low-voltage drop. It has an integrated programmable charge current source, and supports multiple output voltages. It also has an input-undervoltage lockout solution, which helps protect the device from voltage transients and transient overvoltage.

The working principle of the TPS40090PW involves a voltage feedback loop and a synchronous current mode control (SCCM) controller. The voltage feedback loop is built up of two stages: a voltage regulation loop and a short circuit detection and protection loop. In the voltage regulation loop, the voltage signal is compared to the internal voltage reference to adjust the output voltage.

The TPS40090PW also includes a short circuit detection and protection loop, which monitors the output current for any short circuit condition. When a short circuit is detected, the current control loop shuts down and the output is in a low consumption state. This protects the device from any prospective damage due to a short circuit.

The synchronous current mode control (SCCM) is designed to control the switching frequency along with the semiconductor gate drive signals to transistors. In this mode of operation, the transistor switches are operated in a synchronous manner and requires no dead-time to blank the voltage. This ensures good efficiency and fast transient response.

In summary, the TPS40090PW is a versatile DC/DC switching controller with several advantages. It has an adjustable frequency operation which helps reduce the size of the magnetic components, and a short circuit detection and protection loop which keeps the device safe from damage. It also has a wide operating temperature range, and its synchronous current mode control makes it highly efficient.

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