LP3874EMPX-ADJ/NOPB

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

The LP3874EMPX-ADJ/NOPB is a fixed positive single-output linear regulator from Texas Instruments. It operates within an input voltage range of up to 7V and provides a fixed output voltage of 1.8V. The device supports a maximum output current of 800mA with a typical dropout voltage of 0.35V at full load. It features a static current of 9mA and a maximum supply current of 15mA. Power supply rejection ratio ranges from 73dB to 57dB at 120Hz. The component is housed in a SOT-223-5 package and functions reliably across a temperature range of -40°C to 125°C.

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

• Provides stable regulated power for sensitive electronic circuits
• Includes built-in protection against overcurrent, thermal overload, and short circuits
• Supports system power management through an enable control feature

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

• Portable battery-powered equipment requiring efficient power regulation
• Consumer electronics utilizing low-dropout voltage regulation
• Embedded systems needing stable fixed voltage supplies

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

Verify the exact part number suffix to ensure compatibility with RoHS standards and lead-free manufacturing requirements. Confirm that the SOT-223-5 package matches your PCB footprint design. Check for obsolescence status as older variants may be discontinued. Ensure the supplier provides valid traceability documentation for quality assurance purposes during procurement.

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

Select this component when a fixed 1.8V output is required with moderate current capabilities. Consider the 7V maximum input voltage limit for input source compatibility. Evaluate the thermal performance in your specific enclosure environment due to the surface mount package. Compare static current consumption against other LDO options if battery life is a critical design constraint.

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

This device belongs to the LP3874 series of fast ultra-low dropout linear regulators. The series is designed for applications requiring quick transient response and low noise. The NOPB suffix indicates a lead-free and RoHS-compliant version manufactured by Texas Instruments. It serves as a direct replacement for earlier non-compliant versions within the same functional family.

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

LP3874EMP-1.8/NOPB is a confirmed public substitute offering identical electrical specifications and pinout compatibility.