LP5951MG-3.0

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The LP5951MG-3.0 regulator is a linear voltage regulator unlike the majority of its PMIC contemporaries which are switching types. It is designed to give an adjustable voltage output that’s 3.0V, with an operating range from 2.5V up to 28V. The regulator carries a temperature range of -40°C to +125°C and features a fixed maximum output current of 500mA and an adjustable output current of 4.7 mA minimum and 500 mA maximum. The LP5951MG-3.0 operates off of a single supply and has advanced line, load and thermal protection features.

The most important feature of the LP5951MG-3.0 is its voltage regulating ability. It has a switching frequency of 1MHz and has both automatic and manual shutdown modes. The regulator can be operated in either a step-up or step-down mode. The first is used when supplying a lower voltage and the second when supplying a higher voltage. When running on a single supply, the LP5951MG-3.0 regulator can be configured as a positive or negative polarity regulator.

The LP5951MG-3.0 is an ideal solution for circuit designs that require voltage regulation with a wide range of current delivery, low noise and low energy consumption. This regulator is suitable for use in systems such as Bluetooth and Wifi modules, smartwatches, automotive systems, and portable medical devices. It is a versatile and robust solution for a range of applications requiring a linear voltage regulator.

In terms of its internal workings, the regulator consists of a voltage reference, error amplifier, pass elements, output drivers, and ramp generators. When the power supply is supplied, the voltage reference sets a reference voltage which is then compared to the voltage from the power supply. The error amplifiers difference between the two is amplified and passed on to the pass elements. The pass elements then convert the signal into a high-frequency waveform and the output drivers then convert it into the desired output voltage. Finally, the ramp generators are used to ensure that the output voltage is held within the regulated limits by monitoring the output voltage level and adjusting the gain accordingly.

The LP5951MG-3.0 regulator is a reliable and cost-effective solution for both mobile and desktop computing systems. Its patented protection features, such as overvoltage, undervoltage, overcurrent and thermal protection, ensure that it is safe and stable for a broad range of applications. Its high efficiency and low output ripple makes this voltage regulator well suited for use in low power systems.

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