LP2985AIM5X-2.8

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LP2985AIM5X-2.8 is an adjustable low dropout (LDO) voltage regulator, belonging to the family of linear voltage regulators PMIC - Voltage Regulators - Linear. It has a maximum output current of 600mA, adjustable output voltage from 1.8V to 5.5V, and a typical dropout voltage of 200mV. The device is optimized for easy implementation and compatibility with power-sensitive applications. It operates over industrial, automotive and consumer temperature ranges and is designed to reduce the effects of noise and transients on the output voltage.

The LP2985AIM5X-2.8 application field includes: portable devices, gaming controllers and accessories, modern appliances, automotive audio, HVAC systems and mini PCs. In addition, the device provides flexible operating temperature and output voltage ranges, making it an ideal solution for power-hungry applications in industrial, automotive and consumer markets.

The working principle of LP2985AIM5X-2.8 is that it operates from a single regulator to produce an adjustable output voltage. In order to provide an adjustable output voltage, the device consists of an internal voltage reference, an error amplifier, and a pass transistor. The input voltage is applied to the error amplifier and the feedback voltage is derived from the adjustable potentiometer. The error amplifier compares the two voltages and provides bias current to the pass transistor. The pass transistor then regulates the output voltage by supplying or sinking current. The internal voltage reference is used to limit the output voltage and protect the device against an excessive load.

The LP2985AIM5X-2.8 provides two enable pins, enabling the device to be easily put in different modes of operation. It also offers remote shut-down to disable the output voltage when the device is powered-down. The device also includes a thermal-shutdown feature which protects it from excessive junction temperatures.

In order to avoid output voltage instability, it is important to use a good quality external feedback circuit with this device. Properly designed external circuitry can help reduce the effects of noise and transients on the output voltage, providing better stability and reliability to the circuit.

The LP2985AIM5X-2.8 is a useful and reliable LDO voltage regulator for many power-sensitive applications due to its low dropout voltage, adjustable output range, extended temperature range and high output current. This device can be used in a variety of applications, such as in portable devices, gaming controllers, modern appliances, automotive audio, HVAC systems and mini PCs.

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