REF192GRUZ

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Introduction to REF192GRUZ

REF192GRUZ is a voltage reference for PMIC applications (Power Management Integrated Circuit) from Texas Instruments. It is a highly-accurate voltage reference that is designed to operate from a 2.7 V to 5.5 V supply range. The REF192GRUZ is designed for precision reference applications such as direct DC-DC converters, isolated DC-DC converters, AC-DC power supplies, multi level converters and other power management applications.

Functionality of REF192GRUZ

The REF192GRUZ offers very low temperature drift, fast start-up time, temperature independent output voltage and fast line and load transient response. It features an open-loop gain of 4.6 V/V (max) and low quiescent current of 2 uA. Additionally, it has a low noise of 20 uVpp (max) and low output voltage error of 10 mV (max) across -40°C to 85°C temperature range.

Performance Characteristics of REF192GRUZ

REF192GRUZ features a low output voltage error of 10 mV (max) across temperature range of -40°C to 85°C. The maximum temperature drift of the device is 70 ppb/°C, which is among the best in the industry and makes it an ideal choice for precision applications. The quiescent current of the REF192GRUZ is 2 uA (max) and the device has a fast start-up time of 1 us. Additionally, the device has low noise of 20 uVpp (max) and fast line and load transient response.

Applications of REF192GRUZ

REF192GRUZ is ideal for precision voltage reference applications such as direct and isolated DC-DC converters, AC-DC power supplies and multi level converters. It offers sophisticated performance features such as very low temperature drift and low output voltage error, high accuracy and fast start-up time, making it an ideal choice for precision reference applications.

Working Principle of REF192GRUZ

REF192GRUZ is an IC which uses a process of dynamic regulation to maintain a precision output voltage. An internal error amplifier monitors the output voltage, and adjusts the amount of current flowing from the internal current source to the output. This current is the main source of output voltage regulation and is controlled by comparing the output voltage to the precision reference voltage. When the output voltage rises, the error amplifier is triggered and causes the internal current to decrease, bringing the output voltage back to a preset level.

Conclusion

REF192GRUZ is a highly-accurate precision reference device designed for PMIC systems. It offers low temperature drift, fast start-up time, low noise and low output voltage error, making it an ideal choice for precision applications. The device is suitable for direct and isolated DC-DC converters, AC-DC power supplies, and multi level converters.

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