LP3855EMP-ADJ/NOPB

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

The LP3855EMPX-ADJ/NOPB is a positive adjustable low-dropout linear regulator manufactured by Texas Instruments. It delivers an output current of 1.5 A with a maximum dropout voltage of 240 mV. The device operates within an input voltage range up to 7 V and provides an adjustable output voltage. It functions reliably across an extended temperature range from -40°C to +125°C. The component utilizes a surface-mount SOT-223-5 package for efficient thermal management and compact board integration.

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

• Provides high-current regulation capability suitable for demanding power delivery applications
• Maintains stable performance under minimal voltage differential conditions between input and output
• Ensures operational reliability across wide industrial temperature extremes

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

• Portable battery-powered equipment requiring efficient linear regulation
• Embedded systems needing clean power supplies for sensitive analog circuits
• Industrial control modules operating in harsh thermal environments

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

Verify the complete part number includes the suffix indicating the specific tape-and-reel or cut-tape packaging configuration, as this affects physical handling but not electrical function. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure the ordering code matches the exact pinout and thermal pad requirements for your PCB layout design.

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

Select this component when a single positive output channel is required with adjustable voltage settings. It is appropriate for designs where input voltages remain close to the desired output level to minimize power dissipation. Consider the SOT-223-5 package constraints regarding thermal resistance and available copper area for heat sinking during the initial schematic capture phase.

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

This device belongs to the LP3855 series of ultra-low-dropout regulators designed for fast transient response. It serves as a direct replacement for older National Semiconductor variants within the same family. The NOPB suffix denotes lead-free construction compliant with international environmental standards, ensuring compatibility with modern manufacturing processes.

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

LP3855EMPX-ADJ-NOPB is documented as an equivalent identifier for this component.