REF191GS

REF191GS is a voltage reference device developed by Texas Instruments Incorporated (TI), a world leader in semiconductor development and delivery. As part of their Voltage Reference family, the device is specifically designed for use in power-management, automotive, and communications-related applications. In its intended environment, it offers a wide array of features, offering a level of performance and accuracy not achievable with earlier generations of voltage reference devices.

A voltage reference, or voltage regulator, is an electronic device which maintains a constant voltage across its terminals or load. This ensures that a circuit or load can operate without being affected by external load or source fluctuations. A regulator typically consists of a reference device, or an amplifier circuit, which provides a constant output voltage over a range of load or source voltages. Depending on the type of the regulator, it may also provide protection against over-voltage, under-voltage, and even over-temperature conditions.The REF191GS is a low-dropout (LDO) type voltage regulator, which means it provides a constant output voltage regardless of the input voltage level. The input voltage range for the REF191GS is from 2.4V to 6.5V, meaning that it can operate over a wide range of supply voltages. It also has a maximum dropout voltage of only 0.4V at full load. This low dropout voltage ensures that the circuit or load is directly supplied with the desired voltage, offering good efficiency and reduced noise.Additionally, the REF191GS is designed with an internal circuit protection system that protects against over-current and over-temperature conditions. It also features an under-voltage lock-out (UVLO) function that maintains system reliability and prevents any unwanted reset of the load during low input supply voltages.

In terms of performance, the REF191GS has an output voltage accuracy of 0.25% at 25°C. The output voltage can be dynamically adjusted using an external resistor divider, providing the flexibility to match the output voltage to a variety of load or source voltages. Additionally, the device can regulate a wide range of current levels, up to 100mA, which is suitable for low current applications.

The REF191GS has a small form factor with an SOT-23-5 package. This allows for easy design flexibility as well as a reduction in overall circuit board size. Additionally, it has an operating temperature range of -40°C to 85°C, and it operates in an ambient environment from 1.2V to 6.0V. This makes the REF191GS suitable for a variety of applications, from consumer electronics to industrial and automotive applications.

In summary, the REF191GS is a low-dropout voltage reference device designed for various applications, including power-management and automotive applications. It offers excellent performance and accuracy, and protection against over-current and over-temperature conditions, while having a small form factor and a wide input voltage range. This makes it suitable for a variety of applications, including consumer electronics, industrial, and automotive applications, where accuracy, efficiency and noise are a priority.

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REF191GSZ	Analog Devic...	--	2404	IC VREF SERIES 2.048V 8SO...
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