TPS548A20RVER

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TPS548A20RVER Application Field and Working Principle

TPS548A20RVER is a fully integrated compact synchronous buck dc-dc controller rated for 5A of continuous output current, covering an input voltage range from 8.8V to 24V. It is a six-lead small outline transistor package that allows for a high-performance power solution with minimal component count and board space.

The TPS548A20RVER is a programmable, high power, synchronous buck controller intended for use in high performance mobile, data storage and other battery-powered applications. It provides internal compensation, wide input range and input protection, high-performance synchronous rectification and cable drop compensation, as well as output voltage accuracy of ±1.5%. Additionally, the TPS548A20RVER provides excellent transient response, programmable switching frequency, and flexible output voltage range.

The TPS548A20RVER belongs to the category of PMIC - Voltage Regulators - DC DC Switching Regulators. This type of voltage regulator provides improved efficiency, thermal performance and a wide variety of output voltages, enabling highly efficient system performance.

The TPS548A20RVER working principle is primarily based on the operation of the switching regulator. Switching regulators work by rapidly turning on and off a power switch, such as a MOSFET, to transfer energy from an input voltage source to the output load. By controlling the state of the switch(s), the regulator can control how much energy is transferred from the input to the output, resulting in an accurate output voltage compared to the input voltage.

This type of regulator provides a regulated output voltage by using pulse-width modulation (PWM) with a fast and very accurate on-time signal and feedback control to regulate the output. The controller senses the output voltage through feedback circuitry, and adjusts the duty cycle or average voltage across the power switch in order to maintain a constant output voltage, regardless of input voltage or load changes.

The output power of the TPS548A20RVER can be externally set using external resistor network and is available in either a fixed or adjustable output voltage version. For adjustable output voltage, the output voltage can be adjusted over a wide range by programming the external resistor network. The programming resistor values is also used to set the switching frequency and current limit protection.

The switch drive signals can easily be synchronized to an external clock, allowing for flexible synchronization and load shedding applications. The TPS548A20RVER also provides short-circuit protection, improved efficiency and thermal performance, as well as additional features such as power-good and adjustable current limit.

In conclusion, the TPS548A20RVER belongs to the category of PMIC - Voltage Regulators - DC DC Switching Regulators. This type of voltage regulator employs pulse-width modulation (PWM) with a fast and very accurate on-time signal and feedback control to regulate the output voltage. This produces a regulated output voltage while providing improved efficiency, thermal performance and a wide variety of output voltages. Additionally, the TPS548A20RVER provides excellent transient response, programmable switching frequency, and flexible output voltage range.

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