LP2997M/NOPB

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LP2997M/NOPB is a member of the PMIC (Power Management Integrated Controllers) family and is a specialized power management device. It is a voltage regulator and can deliver up to 7A of output current with a wide input voltage range of 4.5V to 16V.

The LP2997M/NOPB is suitable for a variety of applications that include automotive, industrial, and communications. It is an efficient power manager and provides excellent protection against over-current, over-voltage and thermal shutdown. The device incorporates shutdown mode, standby mode, and deep-sleep mode reducing quiescent current on the input side to less than 10 μA.

The LP2997M/NOPB features an adjustable output voltage range of 0.7V to 5.5V with a low dropout voltage of 145 mV. It is available in both SOIC-8 and TSSOP-8 packages. The device also has built-in reverse diode protection to protect against negative outputs and also enable power sequencing. The LP2997M/NOPB has an adjustable output over temperature protection and a power-OK pin to indicate when the voltage has been regulated to its required level.

LP2997M/NOPB is ideal for current and voltage sensitive applications, including LCD-TV power supplies, PCs, set-top boxes, automotive and audio/video systems. It is also suitable for powering communication-related electronics in WiMAX, Wi-Fi and cellular terminals, base stations and routers.

The working principle of the LP2997M/NOPB is based on its two-stage, linear regulator. The first stage consists of an internal reference voltage and an error amplifier. This stage accurately regulates the input voltage to the IC and keeps the output voltage relatively constant. The second stage consists of a series pass MOSFET and a low dropout voltage regulator. The series pass MOSFET acts as a constant current source, offering high output accuracy and very low dropout voltage.

The LP2997M/NOPB is a cost-effective and efficient solution for many power management applications. Its wide input voltage range and adjustable output voltage make it ideal for a variety of applications. The device also offers reverse diode protection, over-current, over-voltage and thermal protection, and various shutdown modes making it a versatile and durable solution.

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