Texas Instruments

LP3990TL-2.5/NOPB  

Linear & Switching Voltage Regulators

LP3990TL-2.5/NOPB Description

The LP3990TL-2.5/NOPB is a high-performance linear regulator from Texas Instruments, designed to deliver a fixed output voltage of 2.5V with a maximum output current of 150mA. This regulator is optimized for low power consumption, with a maximum supply current of 120 µA and a quiescent current of 80 µA. It features a low dropout voltage of 0.2V at 150mA, making it suitable for applications where input voltage is close to the desired output voltage. The LP3990TL-2.5/NOPB is housed in a compact 4DSBGA package, ideal for surface mount applications, and is REACH unaffected and ROHS3 compliant.

LP3990TL-2.5/NOPB Features

• Output Type: Fixed 2.5V output voltage ensures stable power supply for sensitive electronic components.
• Input Voltage Range: Capable of handling input voltages up to 6V, providing flexibility in power source selection.
• Output Current: Delivers up to 150mA of output current, suitable for a wide range of low-power applications.
• Low Dropout Voltage: A maximum dropout voltage of 0.2V at 150mA ensures efficient power conversion even at low input-to-output voltage differentials.
• Power Supply Current: Maximum supply current of 120 µA and quiescent current of 80 µA minimize power consumption, extending battery life in portable devices.
• Control Features: Includes an enable feature for easy control and power management.
• Protection Features: Over-temperature and short-circuit protection ensure reliable operation and protect against potential faults.
• Noise Performance: Offers a power supply rejection ratio (PSRR) of 55dB to 35dB across the frequency range of 1kHz to 10kHz, minimizing noise and improving signal integrity.
• Packaging: Supplied in a surface mount 4DSBGA package, suitable for compact and high-density PCB designs.

LP3990TL-2.5/NOPB Applications

The LP3990TL-2.5/NOPB is ideal for a variety of applications requiring a stable and efficient power supply. Its low dropout voltage and low power consumption make it particularly suitable for battery-powered devices and portable electronics. Specific use cases include:

• Portable Devices: Ideal for smartphones, tablets, and other handheld devices where battery life and compact design are critical.
• Wearable Technology: Perfect for fitness trackers, smartwatches, and other wearable devices that require low power consumption and small form factors.
• IoT Devices: Suitable for Internet of Things (IoT) devices that need reliable power management and low power consumption.
• Medical Devices: Applicable in portable medical devices such as glucose meters and portable ECG monitors, where stable power supply and low noise are essential.

Conclusion of LP3990TL-2.5/NOPB

The LP3990TL-2.5/NOPB from Texas Instruments is a versatile and efficient linear regulator designed for low-power applications. Its low dropout voltage, low power consumption, and compact packaging make it an excellent choice for portable and wearable devices. The inclusion of over-temperature and short-circuit protection ensures reliable operation, while the enable feature provides additional control flexibility. With its high PSRR and low noise performance, the LP3990TL-2.5/NOPB is well-suited for applications where signal integrity and power efficiency are paramount.

LP3990TL-2.5/NOPB Documents

Download datasheets and manufacturer documentation for LP3990TL-2.5/NOPB

Datasheets :

LP3990