TPS622315DRYR

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TPS622315DRYR is an adjustable synchronous step-down DC/DC converter featuring a 2A integrated power switch, can be used in several applications. One of the most important is Automotive market, as an energy efficient and reliable solution for industrial, automotive and consumer applications. TPS622315DRYR works as a Voltage Regulator, as it belongs to DC DC Switching Regulators category of PMIC (Power Management IC) that allow the conversion of a voltage from one level to another.

The product draws from a wide operating input range from 3 V to 30 V, and delivers up to 1.5 A of continuous load current plus over-temperature, over-current and short-circuit protection. Moreover, it includes integrated switches suitable for automotive applications, and the main features for TPS622315DRYR are low noise, high efficiency, and high power density.

The TPS622315DRYR DC/DC converter has a maximum quiescent current of 260 nA and an extended junction temperature range of -40 °C to 150 °C, making it a very suitable device to be used in automotive or industrial applications.

The application field of the TPS622315DRYR DC/DC converter is very wide: it can be used in systems that require clean supply voltages, like those of safety critical automotive electronics, such as 5 V, 3.3 V or 1.8 V logic power supplies, LED lighting systems or audio boards. Furthermore it can be popularly used in automotive applications such as car stereo systems, on-board diagnostics and headlights.

The working principle at the heart of the TPS622315DRYR is synchronous voltage conversion, in other words it is based on a circuit consisting of an external inductor and two switches. As a result of this, the input and output currents have the same waveform; therefore the rectified AC waveform is traded for the (smoother) pulsating DC waveform.

When the switch is turned on, current flows through the inductor and causes a magnetic field to be built up. Once the inductor has reached its maximum current limit, the switch turns off and the magnetic field collapses, which in turn causes current to flow in the opposite direction. Although the oscillator timing will determine when the switches turn on and off, the inductor and capacitor will limit the rate of change of inductor’s current. In addition, the capacitor on the VOUT terminal filters unwanted high frequency noise from the output.

In conclusion, the TPS622315DRYR is a reliable electrical component useful for a wide range of automotive and industrial applications thanks to its adjustable synchronous step-down voltage conversion and low noise, high efficiency and high power density. With its wide operating input range, integrated switch suitable for automotive applications, extended junction temperature range and low quiescent current, it provides a great energy efficiency.

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