TPS76818QPWPREP

TPS76818QPWPREP Application Field and Working Principle

The TPS76818QPWPREP is a step-down pulse-width modulated (PWM) voltage regulator designed to provide up to 8 A of output current for either a single voltage or adjustable output voltage. This part is designed for applications requiring core, I/O, digital, DDR, and LDO voltage supplies. With features such as power good, output sequencing and sequencing delay, it provides a highly optimized, reliable power solution for a variety of applications.The TPS76818QPWPREP also features a wide input voltage range of 4.5 V to 18 V and an adjustable output voltage range of 0.8 V to 5.5 V that is adjustable in 64 mV steps. The device includes a unique dynamic voltage scaling (DVS) operation, allowing current loads to be optimized using the output voltage selection register. In addition, the device canalso be configured to use either a fixed frequency operation or a synchronized operation to an externalclock from 200 kHz to 1.2 MHz.

How Does TPS76818QPWPREP Work?

The TPS76818QPWPREP is an integrated circuit that uses PWM control technology for efficient, clean, and accurate voltage regulation. The part operates by switching a MOSFET pass transistor between an on and off state, which regulates the output voltage to the desired level. The on/off duty cycle, or the amount of time that the MOSFET is driven in its on (high) state and its off (low) state, is controlled by a Pulse-Width Modulation (PWM) signal. The frequency of the PWM signal can either be set to a fixed frequency, or it can be synchronized to an external clock signal.The oscillator frequency of the TPS76818QPWPREP is determined by an internal phase-locked loop (PLL), which tracks an externally supplied reference clock signal. When the device is set to a fixed-frequency operation mode, the PLL locks onto an internal clock signal and the device runs at a fixed frequency. When the device is set to a synchronized operation mode, the PLL locks onto an external reference clock signal and the oscillator frequency is set to match the external reference clock frequency.The TPS76818QPWPREP has a wide input voltage range of 4.5 V to 18 V and an adjustable output voltage range of 0.8 V to 5.5 V that is adjustable in 64 mV steps. The device also includes a unique dynamic voltage scaling (DVS) feature which allows current loads to be optimized by adjusting the output voltage in 64 mV steps. The part is designed to provide high efficiency over a wide input voltage and output current range as well as high current accuracy and low output voltage ripple.

Applications of TPS76818QPWPREP

The TPS76818QPWPREP is ideal for applications requiring core, I/O, digital, DDR, and LDO voltage supplies. Its wide input voltage range and adjustable output voltage range make it suitable for a variety of applications such as portable computing and communications, industrial systems, automotive, and medical equipment. The device also features integrated advanced protection features such as over-voltage protection, adjustable over-current protection, power good output, and thermal shutdown for safe operation over a wide temperature range.The device can be used in a single voltage or adjustable output voltage configuration, giving it the flexibility needed for a variety of applications. In addition, the device can also be configured to use either a fixed frequency operation or a synchronized operation to an external clock from 200 kHz to 1.2 MHz, allowing it to be adapted to the specific needs of any application.