TPS62238DRYR

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The Texas Instruments TPS62238DRYR is a high-power, synchronous step-down converter in a low-profile (1.55 mm) 5-pin Power VSON package ideal for providing up to 3A of continuous output current at up to 23V input voltage and 3.3V output. It operates using a synchronous rectifier architecture for excellent conversion efficiency and a low BS 0.7V reference voltage for low output ripple.

The TPS62238DRYR is specifically designed for applications that require high-power density and fast transient response, making it ideal for use in notebooks, tablets and other battery-operated portable applications. It delivers up to 3A of continuous current with a peak output current of 4A, and can handle transient pulses up to 10A.

The TPS62238DRYR features an advanced spread-spectrum voltage modulation technique that operates at a high peak efficiency of 95% while eliminating acoustic noise and EMI. It also features adjustable soft-start, over current protection, overload protection, and over voltage protection.

The TPS62238DRYR is a DC-DC converter that converts an input voltage of up to 23V to a regulated 3.3V output voltage. It is based on a synchronous buck converter architecture, which means that an inductor, an external capacitor and a switching transistor are used together to produce the output current at a DC level. A PWM (pulse-width modulation) controller is used to regulate the output voltage.

First, the controller generates a pulse-width-modulated (PWM) signal that the switching transistor uses to turn on and off, thus creating a regulated output voltage. During this switching process, the input voltage is dropped across the inductor, creating a stored magnetic field that is used to maintain the output voltage. The inductor also filters out the PWM ripple to produce a clean output voltage.

The TPS62238DRYR also uses a synchronous rectification technique to improve the efficiency of the switching process. This is done by using two transistors — the high side switch and the low side synchronous rectifier — that switch alternately in order to maintain the output voltage and reduce losses.

The TPS62238DRYR is an ideal choice for applications that require a high-power density and fast transient response. Its low-profile VSON package, low dropout voltage and high peak efficiency make it suitable for use in applications such as notebook, tablet and other battery-operated portable applications and for providing a regulated 3.3V output from a wide input voltage range.

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