TPS546C20ARVFT Integrated Circuits (ICs)

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The TPS546C20ARVFT is a DC to DC switching regulator. It supports a wide input voltage range and is optimized for high efficiency. It combines an extremely low noise switching frequency of 2.2MHz and operates at a low quiescent current. This makes the device well suited for battery-powered and low power applications, such as embedded markets, portable and handheld electronics, and industrial/automation applications.

Application Field

The TPS546C20ARVFT is designed for applications such as embedded systems, motor controllers and drives, portable medical equipment, automotive systems, and mobile phones. It can also be used in power supply applications such as non-isolated DC-DC converter and point of load (PoL) voltage regulator modules. Additionally, its high efficiency makes it ideal for data center and network applications where energy savings are essential.

Working Principle

The TPS546C20ARVFT employs a buck topology. It utilizes a synchronous switching architecture and utilizes current mode control. This solution allows for fast transient response and good load regulation. Additionally, it offers programmable input under-voltage lockout (UVLO) and over-voltage-protection (OVP). It features a programmable switching frequency range of 200 kHz to 3.2 MHz, allowing designers to optimize their design for cost, size, and efficiency.

The device converts an input voltage range from 4.5V to 18V to an output between 0.6V to 5.5V. It provides configureable output current and power up to 5A and 20W, respectively. The TPS546C20ARVFT incorporates a high-efficiency driver stage and can deliver up to 95% efficiency over the full load range. It has a wide input voltage range of 4.5V to 18V, which makes it compatible with a variety of sources.

The TPS546C20ARVFT also provides power good detection and sequencing capabilities, as well as an adjustable load switch current limit programmable from 2A to 5A.

The TPS546C20ARVFT includes advanced protection features such as an adjustable soft start, cycle-by-cycle current limit, and thermal shutdown. It also features an advanced control loop that enables fast transient response and excellent line and load regulation.

Additionally, the device includes an internal power switch protection circuit, a current-limit protection circuit, an over-temperature protection circuit, and an oscillation prevention circuit.

In summary, the TPS546C20ARVFT DC to DC switching regulator is designed for applications that require high efficiency, low quiescent current, and programmability in a small package size. It is ideal for embedded, motor control, automotive, and consumer applications, as well as data centers and networks.

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