LP38841T-1.5 Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The LP38841T-1.5 is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. This device delivers 800mA output current with a fixed 1.5V output and operates across an input voltage range up to 5.5V. The regulator integrates over-current, over-temperature, and short-circuit protection features, making it suitable for power management applications requiring regulated low-voltage output.

The main part number LP38841T-1.5 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and access components with active manufacturing support and current compliance certifications.

Substiute Parts

LP38841T-1.5

Texas InstrumentsIn Stock: 793LP38841T-1.5 Datasheet

Current PartRFQ

LP38841T-1.5/NOPB

Texas InstrumentsIn Stock: 1112LP38841T-1.5/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LP38841T-1.5 is determined by strict equivalence across the following critical parameters:

• Output voltage specification (1.5V fixed)
• Maximum output current capability (800mA)
• Maximum input voltage rating (5.5V)
• Voltage dropout performance (0.21V @ 800mA)
• Package type (TO-220-5)
• Mounting configuration (Through Hole)
• Protection feature set (Over Current, Over Temperature, Short Circuit)
• Control features (Enable function)

The LP38841T-1.5/NOPB qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction between the main part and this substitute is product status and compliance certification level.

Parameter Comparison

Engineering Selection Recommendations

The LP38841T-1.5/NOPB is the direct substitute for the obsolete LP38841T-1.5. Both parts share identical electrical and mechanical specifications, ensuring functional equivalence in circuit applications.

The LP38841T-1.5/NOPB carries active product status from Texas Instruments, providing access to current manufacturing, quality assurance, and supply chain support. This part meets ROHS3 compliance requirements, whereas the original LP38841T-1.5 does not. For applications subject to RoHS regulations or requiring compliance documentation, the LP38841T-1.5/NOPB is the appropriate selection.

Both parts maintain REACH Unaffected status and EAR99 export classification. The substitute part is supplied in Tube packaging, whereas the original part packaging specification was not provided.

Frequently Asked Questions (FAQ)

Q: Can LP38841T-1.5/NOPB replace LP38841T-1.5 in existing designs?

A: Yes. The LP38841T-1.5/NOPB is electrically and mechanically equivalent to the LP38841T-1.5. All output voltage, current, dropout, protection, and control specifications are identical. Both use the TO-220-5 package with through-hole mounting.

Q: What is the difference between LP38841T-1.5 and LP38841T-1.5/NOPB?

A: The primary differences are product status and compliance certification. The LP38841T-1.5 is obsolete and RoHS non-compliant. The LP38841T-1.5/NOPB is active, ROHS3 compliant, and supplied in Tube packaging. Electrical and mechanical specifications are identical.

Q: Is the TO-220-5 package compatible with existing PCB layouts?

A: Yes. Both the main part and substitute use the TO-220-5 package with through-hole mounting. PCB footprints and thermal management designs remain unchanged.

Q: Does the LP38841T-1.5/NOPB meet RoHS requirements?

A: Yes. The LP38841T-1.5/NOPB is ROHS3 compliant. The original LP38841T-1.5 is RoHS non-compliant.

Q: Are there any performance differences in output current or voltage regulation?

A: No. Both parts deliver 800mA output current, maintain 1.5V fixed output voltage, and exhibit identical dropout voltage of 0.21V @ 800mA. PSRR, quiescent current, and protection features are identical.