LP5990TMX-1.2/NOPB

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The LP5990TMX-1.2/NOPB is a monolithic linear 3-terminal regulator featuring internal current sensing for both Li-ion battery charge status monitoring and Li-ion filter for incoming power. The LP5990 is designed for use in low-voltage applications where output accuracy and load regulation levels are critical. It incorporates a low-dropout regulator (LDO) that can be used to limit the voltage across the load to a specific output voltage value. The LP5990 improves the accuracy of the system by providing a more constant current at a higher output current. In addition, the LP5990 offers an extensive thermal protection feature that can be programmable to protect against thermal overloads.

The LP5990 is designed to provide a regulated voltage output and a stable current through its output terminals. It operates in a standard voltage range of 0.8 V to 5.25 V, with an output of 3.6 V. The LP5990 includes an internal P-channel MOSFET that is capable of delivering 2.5 A of continuous current. This allows for a wide range of applications, including those where load current varies or load transient current is present.

The LP5990\'s internal current sensing circuitry is able to detect changes in the input load or output voltage. Upon sensing a change, the LP5990 will then adjust its current output accordingly. This feature allows for an accurate and steady current source to be maintained with an extremely small size form factor.

In addition to its current sensing capability, the LP5990 also features a low-battery protection circuit. This circuit monitors the incoming voltage and automatically shuts down the LDO when the voltage drops too low. This ensures the output voltage remains at the desired level, even when the battery voltage is too low.

The LP5990 is an ideal choice for many low-voltage applications that require a regulated voltage output, such as battery-powered devices, wireless radio receivers, digital audio amplifiers, and other devices that require a steady power source. It is also suitable for use with other devices that require current monitoring, such as cell phone chargers, laptop chargers and other battery-management systems. The LP5990 offers a high level of accuracy, low dropout performance, and a current output capability of up to 2.5 A, making it a reliable and versatile linear voltage regulator.

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