LM285D-2.5R2

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Power management is an essential element of electronics design, and a PMIC, or power management integrated circuit, is a comprehensive circuit that provides a combination of power management and system control functions. One of the most widespread PMICs is the LM285D-2.5R2, a voltage reference PMIC. This device provides an accurate, adjustable voltage reference for power management functions. Its application field and working principle will be explained in this article.

Application Field of LM285D-2.5R2

The LM285D-2.5R2 voltage reference PMIC is commonly used for analog and digital applications, including power supplies, motor drivers, data converters, and multi-phase regulation. It provides highly accurate output voltage and current regulation, temperature compensation, and over-temperature protection.

The LM285D-2.5R2 is widely used in high-precision instrumentation, control systems, automotive electronics, and medical equipment. It is particularly suited for applications requiring low-noise outputs, such as communications systems, surveillance systems, and AI processors. Its wide temperature range and low input current make it well suited to a variety of applications.

Working Principle of LM285D-2.5R2

The LM285D-2.5R2 voltage reference PMIC uses a band-gap reference circuit to control the output voltage. Band-gap references are voltage sources that are stable across temperature and process variation. The LM285D-2.5R2 offers adjustable outputs from -2.50 to +2.50V, and a low drift of just 0.1 μV/deg C. This voltage is generated from a ±0.2V power supply, and can be used to power analog and digital devices.

The LM285D-2.5R2 provides a wide temperature range and current limit protection. It also offers short-circuit and over-temperature protection, and spike suppression. The current limit is adjustable with the external resistor, and can be increased or decreased as needed.

The LM285D-2.5R2 includes a power-on reset circuit, allowing the device to start-up without the need for an external reset signal. The power-on reset also includes hysteresis to prevent false resets due to noise or other transient signals.

Conclusion

The LM285D-2.5R2 is a highly reliable voltage reference PMIC that is widely used for analog and digital applications. Its wide temperature range, low-noise output, and over-temperature protection make it an ideal choice for a variety of applications, from high-precision instrumentation to motor drivers and data converters. Its stable reference voltage, adjustable current limit, and power-on reset circuit ensure reliable operation and reduce maintenance costs.

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