LP3995ITLX-2.5/NOPB

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LP3995ITLX-2.5/NOPB is a voltage regulator featuring low dropout and ultra-low power (ULP). This device integrates a high-accuracy, low-noise, low-power voltage regulator with an integrated series pass element. It is ideal for portable systems and battery-powered devices where power is limited or where the load or power source is transient. Features such as adjustable current limit and overvoltage protection make it a versatile device suitable for a wide range of applications. The LP3995ITLX-2.5/NOPB represents an ideal choice for space-saving, low-power, and high-performance linear power management.

Application Field of LP3995ITLX-2.5/NOPB

The LP3995ITLX-2.5/NOPB is suitable for a variety of applications, including:

• Cellular phones
• PDAs and handheld computers
• Portable audio players
• Battery-powered systems
• Handheld test and measurement instruments
• USB peripherals
• Cordless phones
• Digital still cameras
• Notebook and netbook computers
• Wireless modems

The LP3995ITLX-2.5/NOPB is well suited for powering processors, memory, and digital logic, where ultra-low dropout is required and efficiency is paramount.

Working Principle of LP3995ITLX-2.5/NOPB

The LP3995ITLX-2.5/NOPB device consists of a low-dropout regulator (LDO), an input clamp, and an integrated series pass element. The LDO is composed of an error amplifier, an output voltage reference, and an output driver, which together provide a regulated output voltage. A feedback loop is used to monitor and maintain the output voltage. The input and output voltage are kept in check with a pair of external resistors that form a resistive divider across the input. The external resistors also provide a degree of frequency compensation, allowing the LP3995ITLX-2.5/NOPB to regulate in the presence of a wide range of load conditions. The output current is limited by the integratedSeries Pass element, which consists of a MOSFET, an external P-channel MOSFET, and a current reference. The current reference is combined with the feedback resistor to form an output current sense node, and the combined signal is used to turn on the MOSFET and limit the output current. The integrated series pass element also provides overvoltage protection, which prevents the output voltage from exceeding a preset limit.

In addition to its ultra-low dropout and low-power operation, the LP3995ITLX-2.5/NOPB device features adjustable current limit, overvoltage protection, undervoltage lockout, and power saving modes. This makes it an ideal choice for low-power, space-saving, and high-performance linear power management.

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