XC6219B182MR-G

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PMIC - Voltage Regulators - Linear

The XC6219B182MR-G is an IC step-down switching regulator that is designed to operate with an input voltage of up to 18 volts and a output voltage of 2.5V to 6V. It is a two-stage design with an adjustable frequency, with an operating frequency range of 50 kHz to 6 MHz. This type of IC is utilized primarily in automotive applications and industrial applications as a method of regulating supply voltage. It is well suited for use in battery powered applications, as it provides low PSRR, high efficiency, and a low overall power consumption.

Application Field of XC6219B182MR-G

The XC6219B182MR-G is a step-down switching regulator with an adjustable frequency that can be used in a variety of battery-powered applications such as automotive electronics and industrial equipment. It is capable of providing stability for supply voltage with high efficiency, low power consumption, and low EMI. It is also suitable for triggering logic devices, providing sequencing functions for PWM control, and other similar applications in the automotive and industrial settings.

This switching regulator is also suitable for load sharing applications in automotive and industrial applications, providing a current sink/source function to balance loads or facilitate folding of the current paths. This regulator is also suitable for use in distributed point-of-load (PoL) architectures, where the supply voltages can be adapted to the loading requirements.

Working Principle of XC6219B182MR-G

The XC6219B182MR-G is a two-stage step-down switching regulator with an adjustable frequency. The first stage is the control stage, which senses the output voltage and then produces a voltage-controlled oscillator (VCO) signal to switch the second stage, which is a synchronous rectifier. This allows for a high-efficiency conversion with a low overall power consumption. It also utilizes an external pass transistor with an integrated current limit and protection against overcurrent, overvoltage, improper shutdown, and other protection features.

The XC6219B182MR-G operates at a switch node frequency between 50 kHz and 6 MHz and can achieve a maximum duty cycle of 90%. It also features a current-based overcurrent protection triggered at up to 2A. The overvoltage protection is also enabled, and the internal lossless-low-side switch is designed with overshoot and undershoot protection so that the switch nodes are safe even under extreme conditions.

The XC6219B182MR-G also includes exclusive features such as the foldback circuitry, which reduces the main current in case of extreme overload conditions, and the Synchronous Rectification and Power Update (SRPU) feature, which provides load balancing and transient response. This feature also allows for distributed tracking or point-of-load (PoL) architectures for improved power distribution.

Conclusion

The XC6219B182MR-G is a switch-mode step-down regulator with an adjustable frequency and high-efficiency designs. It is a great choice for both industrial and automotive applications, providing improved efficiency, low PSRR, and low overall power consumption. It is also suitable for use in battery-powered applications, load sharing, sequencing, and distributed point-of-load architectures. The XC6219B182MR-G also includes several safety features such as overvoltage, overcurrent, and foldback protection, making it an overall great choice for various applications.

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