Texas Instruments

LP3990SD-1.5/NOPB

LP3990SD-1.5/NOPB Description

The LP3990SD-1.5/NOPB is a high-performance linear regulator from Texas Instruments, designed to provide a stable and efficient power supply for a variety of electronic applications. This regulator features a fixed output voltage of 1.5V and can deliver up to 150mA of output current. It is optimized for low dropout voltage, with a maximum dropout of 0.2V at 150mA, ensuring high efficiency even at low input voltages. The regulator operates with an input voltage range up to 6V, making it suitable for a wide range of power sources.

With a quiescent current of only 80 µA and a supply current of 120 µA, the LP3990SD-1.5/NOPB is highly efficient and ideal for battery-powered devices where power consumption is critical. The regulator also includes an enable control feature, allowing for dynamic power management and further optimization of power usage. Additionally, it offers robust protection features, including over-temperature and short-circuit protection, ensuring reliable operation under various conditions.

The LP3990SD-1.5/NOPB is packaged in a surface-mount 6-lead WSON (TSSOP) package, making it suitable for compact and space-constrained designs. It is REACH unaffected and RoHS3 compliant, ensuring environmental safety and regulatory compliance. The product is currently active and available for purchase, with a moisture sensitivity level (MSL) of 1 (unlimited), making it suitable for a wide range of manufacturing processes.

LP3990SD-1.5/NOPB Features

• Fixed Output Voltage: 1.5V, providing a stable power supply for sensitive electronic components.
• High Efficiency: Low dropout voltage of 0.2V at 150mA maximizes efficiency and minimizes power loss.
• Low Quiescent Current: 80 µA ensures minimal power consumption, ideal for battery-operated devices.
• Enable Control: Dynamic power management capability allows for efficient power usage.
• Protection Features: Over-temperature and short-circuit protection ensure reliable operation.
• Compact Packaging: Surface-mount 6-lead WSON (TSSOP) package is suitable for space-constrained designs.
• Regulatory Compliance: REACH unaffected and RoHS3 compliant, ensuring environmental safety.
• Wide Input Voltage Range: Up to 6V, compatible with various power sources.
• High PSRR: 55dB to 35dB (1kHz to 10kHz) ensures low noise and high performance.

LP3990SD-1.5/NOPB Applications

The LP3990SD-1.5/NOPB is ideal for a variety of applications where a stable and efficient power supply is required. Its low dropout voltage and high efficiency make it particularly suitable for battery-powered devices, where power conservation is crucial. Some specific use cases include:

• Portable Electronics: Smartphones, tablets, and other handheld devices benefit from the low power consumption and high efficiency of the LP3990SD-1.5/NOPB.
• Wearable Devices: Fitness trackers and smartwatches can leverage the compact packaging and low quiescent current for extended battery life.
• Medical Devices: Portable medical equipment, such as glucose monitors and portable ECG devices, require stable and reliable power supplies, which the LP3990SD-1.5/NOPB can provide.
• Industrial IoT: Sensors and IoT devices in industrial environments can benefit from the robust protection features and wide input voltage range.

Conclusion of LP3990SD-1.5/NOPB

The LP3990SD-1.5/NOPB from Texas Instruments is a versatile and efficient linear regulator, offering a fixed 1.5V output with up to 150mA of current. Its low dropout voltage, low quiescent current, and enable control feature make it an excellent choice for battery-powered and space-constrained applications. The regulator's robust protection features and regulatory compliance ensure reliable and safe operation. Whether used in portable electronics, wearable devices, medical equipment, or industrial IoT, the LP3990SD-1.5/NOPB provides a stable and efficient power solution, making it a standout choice in the power management IC market.