LP3962EMPX-1.8/NOPB

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The LP3962EMPX-1.8/NOPB is a fixed-output low-dropout linear regulator from the LP3962 series, manufactured by Texas Instruments. It provides a stable 1.8 V output with a maximum load current of 1.5 A. The device utilizes an SOT-223-5 surface-mount package and operates within a junction temperature range of -40°C to +125°C. Key electrical characteristics include a typical dropout voltage of 380 mV at full load and a quiescent current of 15 µA. It features high power supply rejection ratio (PSRR) performance, ensuring clean power delivery for sensitive analog and digital circuits.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Delivers 1.5 A continuous output current in a compact SOT-223-5 package.
• Maintains regulation with a low dropout voltage of 380 mV at maximum load.
• Operates with ultra-low quiescent current of 15 µA for efficient power management.
• Provides high power supply rejection to minimize noise coupling from input sources.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Portable battery-powered consumer electronics requiring efficient voltage regulation.
• RF and wireless communication modules needing low-noise power supplies.
• Embedded systems and microcontrollers requiring stable 1.8 V logic levels.
• Industrial control systems operating in extended temperature environments.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the exact part number suffix against the manufacturer's latest datasheet to ensure compatibility with RoHS standards and lead-free manufacturing processes. Confirm that the SOT-223-5 footprint matches your PCB design guidelines. Check for any specific handling requirements related to moisture sensitivity levels before assembly. Ensure the input voltage range aligns with your system's power source to maintain optimal dropout performance.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 1.8 V output is required with high current capability up to 1.5 A. It is suitable for applications prioritizing low quiescent current and good line/load regulation. Consider the thermal dissipation capabilities of the SOT-223-5 package based on the expected power loss. Compare PSRR specifications if noise immunity is critical for downstream circuitry.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This device belongs to the LP3962 family of fast ultra-low dropout linear regulators. It shares architectural similarities with other members like the LP3965, offering comparable performance metrics in terms of current drive and dropout voltage. The family is designed for space-constrained applications where efficiency and transient response are important. It serves as a direct replacement for older National Semiconductor parts in legacy designs.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

LP3962EMP-1.8/NOPB