RT8293BHGSP

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RT8293BGHSP Application Field and Working Principle

As a series of DC/DC switching regulators—PMIC (Power Management Integrated Circuit) voltage regulators – the RT8293BGHSP is a highly integrated switch mode regulator available in various packages. It integrates all necessary components, such as power MOSFETs, error amplifiers, compensation components and oscillator,with the voltage feedback of a synchronous step-up and step-down conversion design,The RT8293BGHSP is capable of providing fast transient response and current limit protection while switching at low frequencies and delivering up to 2A of output current. This device also offer userselectable operation through variants.

Applications

The RT8293BGHSP is ideal for use in a wide range of applications, including low voltage LEDs, battery powered, low dropout linear regulators, portable and baseband for mobile devices, and smart meters. This device can also be used for automotive electronics and industrial electronics.

Working Principle

The RT8293BGHSP integrates two synchronous buck controllers with one buck converter and one boost converter, utilizing pulse width modulation (PWM) to regulate output voltages. The RT8293BGHSP is configured to provide a conversion ratio of 1:1 through 1:12. The power switch is realized by a MOSFET and the output current is limited and monitored by the devices’ internal current limit, with current sense and peak current-mode control. The device features a very low startup current, wide input voltage range and a selectable output voltage, making it suitable for a broad range of applications.

The RT8293BGHSP integrates a wide range of protection functions, such as over current protection,short circuit protection, thermal protection, over temperature protection, input under voltage and overvoltage protection, as well as over-current protection for the circuit input. The power limit and threshold for these protections can be adjusted through external components.

Conclusion

In conclusion, the RT8293BGHSP is an highly integrated switching regulator PMIC voltage regulator capable of providing 2A output current for a wide range of applications, such as low voltage LED, battery powered and linear regulators, portable and baseband for mobile devices, smart meters, automotive electronics and industrial electronics. The device features a very low start-up current, wide input voltage range and selectable output voltage, and also provides protection functions such as over-current protection, short circuit protection, thermal protection, over-temperature protection, input under voltage and over voltage protection.

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