LP2981A-33DBVTG4

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LP2981A-33DBVTG4 is a PMIC - Voltage Regulators - Linear integrated circuit, which provides high-accuracy, low-noise, low-power and high-current linear voltage regulator. It is available in a industrial SOIC-8 package and provides an adjustable output voltage from 1.8 V to 5 V with a maximum output current of1A. The device has low operating temperature and is suitable for low-power and low-noise applications.

LP2981A-33DBVTG4 application field includes:

• Low-noise power supplies
• Power amplifiers
• Display/LCD panels
• High-efficiency voltage regulators

The working principle of LP2981A-33DBVTG4 is very simple. The device has an internal power stage and a feedback loop, which is used to control the output voltage. The power stage consists of a control circuit, a bridge rectifier, two switch-mode choppers, and two switched capacitors. The control circuit takes an input voltage, which is connected to the supply voltage, and produces a control signal. The control signal is then sent to the switch-mode choppers, which turn on and off the switches in the bridge rectifier depending on the control signal. The switched capacitors are then connected to the output voltage and the input voltage, and the output voltage is then regulated. In this way, it is possible to regulate the output voltage to a constant voltage.

LP2981A-33DBVTG4 series is also suitable for meeting strict environmental conditions, thanks to its superior temperature and humidity tolerance. It has low power consumption, low-noise operation, low input voltage and high current capabilities. Its internal hysteresis loop gives high accuracy across the operating temperature range. Its high efficiency and wide operating temperature range makes it an ideal choice for high-accuracy low-current power products.

In conclusion, LP2981A-33DBVTG4 is a high-accuracy, low-noise, low-power and high-current linear voltage regulator. It is available in a industrial SOIC-8 package and provides an adjustable output voltage from 1.8 V to 5 V with a maximum output current of 1A. Its applications include low-noise power supplies, power amplifiers, display/LCD panels, and high-efficiency voltage regulators. Its superior temperature and humidity tolerance, low power consumption, low input voltage and high current capability make it widely used in many applications.

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