RT7276GQW Integrated Circuits (ICs)

RT7276GQW is a type of DC-DC switching regulator created by Richtek. This product belongs to the range of PMIC voltage regulators specifically for DC DC switching regulators. The RT7276GQW is part of a series of board-mountable power supply solutions designed for the mid-voltage range, cost-sensitive and space-constrained applications.

The RT7276GQW is a synchronous step-down boost regulator IC with a wide input voltage range of 4.5V to 24V and an output voltage range of 0.6V to 5.5V. It adopts a constant-on-time modulation scheme and integrates a power FET to switch up to 3A current over wide input voltage range. It also features a built-in 7.3mΩ/17.5mΩ power switch as well as a 60mΩ/140mΩ low-Rds(ON) power switch, allowing for a high efficiency power conversion.

The RT7276GQW comes equipped with under-voltage lockout and current limit protection, a soft-start, over-temperature protection, a power save mode (PSM) for light-load applications, and a fixed frequency pulse width modulation (PWM) for stability. The power loss protection circuit monitors the output and shuts off the external power FET when it is over current or over voltage. The high level of functionality and safety functions make the RT7276GQW suitable for a wide range of applications.

The RT7276GQW can be used in a number of applications such as automotive applications, industrial applications, consumer electronics and battery charging solutions. It can be used in a wide range of battery-powered devices such as DVD players, gaming consoles, camcorders, digital cameras and portable media players. It is also used in automotive applications such as car audio systems, navigation systems, display systems and lighting systems.

The RT7276GQW is designed to operate with an operating frequency of 500kHz and a switching frequency of 1.2MHz. Its controller includes an error amplifier, a PWM comparator and an error feedback amplifier. The error amplifier controls the ramp waveforms so that the converter is adaptive to line and load changes. The PWM comparator instructs the power switches to switch at high rates while the error feedback amplifier measures the output voltage and adjusts the DC gain of the error amplifier.

The RT7276GQW can support peak currents up to 3A and feature low noise operation, high efficiency, extended temperature range and fast response time. It is available in the SOP-8L, SOP-24L, DSBGA-4L and DSBGA-17L packages and is RoHS compliant.