The LP3873ET-5.0/NOPB is a highly reliable, low-dropout voltage regulator designed and manufactured by Texas Instruments, a leader in semiconductor solutions. This component is part of the LP387x series of fast ultra-low-dropout linear regulators which operate from a 2.5V to 7V input supply and offer excellent regulation characteristics.

Key Features

• Output Voltage: This regulator provides a fixed output voltage of 5.0V, suitable for a wide range of applications that require a stable power source.
• High Current Capability: It is capable of delivering an output current of up to 3A, making it an excellent choice for powering core voltages of many modern microprocessors.
• Low Dropout: The LP3873ET-5.0/NOPB features a low dropout voltage, ensuring efficient operation even when the input voltage is close to the output voltage, thus maximizing battery life in portable applications.
• Thermal Protection: It includes built-in thermal protection that shuts down the regulator if the internal temperature exceeds safe operating limits, providing additional safety and reliability.
• Stable with Low ESR Output Capacitors: The device is stable with ceramic capacitors, which have lower ESR (Equivalent Series Resistance) and are smaller in size, offering a compact power supply solution.
• No Pull-Down Resistor Needed: Unlike many other regulators, this device does not require an external pull-down resistor on the enable pin.

Applications

The LP3873ET-5.0/NOPB is versatile for a variety of applications, including but not limited to:

• Powering FPGA, DSP, and other digital ICs
• High-efficiency linear power supplies
• Post-regulation for switching supplies
• Battery-powered devices
• Consumer electronics

Package and Quality

This regulator comes in a TO-220 package, known for its robustness and good thermal performance. Moreover, the 'NOPB' suffix indicates that the product is lead-free and RoHS compliant, aligning with environmental standards and regulations. Texas Instruments' commitment to quality ensures that the LP3873ET-5.0/NOPB is a reliable choice for your power regulation needs.