LP2981IBPX-3.2

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LP2981IBPX-3.2 is a low-power, low-dropout linear voltage regulator with a wide input voltage range. It is designed to provide a regulated output voltage over a wide range of input voltages and to provide superior performance in extreme temperature ranges. The best performance is obtained when the output voltage is greater than the input voltage/2.

LP2981IBPX-3.2 has been optimised for operation in a wide variety of demanding Video, Industrial, and Automotive applications. It is a high-performance voltage regulator with features such as low dropout voltage, high power supply rejection ratio (PSRR), low variation in load regulation and Thermal Use Model, low quiescent current, and superior line and load transient response.

The LP2981IBPX-3.2 is particularly suited for automotive, industrial, and video applications where high efficiency and high power reliability are essential. The high-performance linear regulator of LP2981IBPX-3.2 is capable of delivering up to 500 mA of continuous current while maintaining very low dropout voltage.

The LP2981IBPX-3.2 is available in an 8-pin SOIC package and requires an input voltage of 2.7V to 44V to regulate output voltages ranging from 0.8V to 3.3V. The device has a preset output voltage that is trimmed to an accuracy of ±2%. It is specified to operate over the extended temperature range of -40°C to +125°C. It is also rated for operation in harsh automotive environments.

The LP2981IBPX-3.2 is a standard 3-terminal negative linear voltage regulator with a fixed output voltage. It is based on a proprietary Bipolar Technology with a high PSRR and excellent thermal stability. Its low dropout voltage allows applications which previously needed an external series pass transistor to be realized with only an LP2981IBPX-3.2 linear regulator. The device is designed to deliver a regulated output voltage over a wide input voltage range while using a minimum Quiescent current.

The internal circuitry of the LP2981IBPX-3.2 includes an output voltage reference, a voltage error detection circuit, a Comparator stage, and a transistor stage. An output transistor built into the chip dissipates power generated by the input/output voltage differential. A thermal-protection circuit shuts the device off if the junction temperature of the chip reaches 180°C.

The LP2981IBPX-3.2 features a tight line/load regulation of 0.03%, low temperature drift of output voltage and excellent temperature stability. The device also has a low quiescent current of 10 μA and a fast transient response. The device also has a high ripple rejection rate, perfect for noise-sensitive applications. It also has a fast standby recovery time of 150μs.

The LP2981IBPX-3.2 is suitable for a wide range of uses, including, but not limited to, personal audio and portable devices, automotive applications, industrial control systems, medical applications, and military applications. It is also ideal for battery-powered applications which require low dropout and low quiescent currents in order to extend battery life.

In summary, the LP2981IBPX-3.2 is a low-power, low-dropout linear voltage regulator with a wide input voltage range and features such as a high PSRR, low variation in load regulation and thermal use model, low quiescent current, and superior line and load transient response. It is suitable for a range of automotive, industrial, and video applications and can provide regulated output voltages of 0.8V to 3.3V over a wide input voltage range. It is available in a small 8-pin SOIC package.

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