NCV890131MWTXG

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The NCV890131MWTXG is an integrated DC/DC buck switching regulator with an internal power switch and high-side power MOSFET. This device can provide up to 1A of continuous current, from an input voltage of 2.1V to 5.5V and adjustable output voltage from 0.48V to 3.3V. The NCV890131MWTXG is specifically suitable for providing a regulated output when powered from USB or DC power supplies.

The high switching performance, low quiescent current and low dropout voltage of the NCV890131MWTXG makes it an ideal choice for a variety of applications, including industrial control systems, automotive, telecom and instrumentation, computer and peripheral systems, and more. It is also suitable for portable applications where the power supply is either a USB port or an external, unregulated DC source. The robust feature set of the device, combined with its low current consumption and low output ripple, makes it well-suited for powering low noise applications such as RF and audio circuits.

The NCV890131MWTXG implements a high-frequency buck switching architecture that operates at up to 1MHz, allowing small, low profile inductor and capacitor components to be used. This architecture minimizes output current ripple and provides excellent load and line regulation, making it well-suited for applications that require a high degree of system performance and reliability. The device also features multi-mode operation, allowing for both DCM (Discontinuous Conduction Mode) and CCM (Continuous Conduction Mode) operation.

The NCV890131MWTXG operates in either Forced PWM (FPWM) or Low Power PWM (LPPWM) modes. In FPWM mode, the device utilizes pulse width modulation (PWM) to accurately regulate the output voltage as the input and output voltages, as well as the load current, changes. The LPPWM mode is a low power version of the PWM mode, designed to reduce the power consumption of the device for applications where the output current is typically at very low levels such as when the device is in a standby or sleep state.

The NCV890131MWTXG is designed to provide a very precise voltage regulation performance, even under stringent load and line conditions. The integrated voltage reference provides a -3% to +2.5% accuracy over the full temperature range (instead of -3% to +3%) and provides a total voltage output error of less than 0.5%. The device also features short-circuit protection, over temperature protection and frequency reduction during light load conditions.

The NCV890131MWTXG is a versatile and cost-effective power solution for many low power, low noise applications. It provides a wide input voltage range, high switching frequency, and high efficiency, making it the ideal choice for providing the regulated voltage needed in a wide variety of applications.

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