LM1086IS-5.0 Equivalent & Substitute Parts

Part Overview

The LM1086IS-5.0 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 5V output applications with 1.5A current capacity. This Surface Mount device in TO-263 (DDPAK-3) packaging provides regulated power supply functionality with integrated protection features including over-current, over-temperature, and short-circuit protection.

The LM1086IS-5.0 carries a Last Time Buy product status, indicating discontinued production. Identifying equivalent substitute parts is necessary for ongoing design support, procurement continuity, and long-term product availability assurance.

Substiute Parts

LM1086IS-5.0

Texas InstrumentsIn Stock: 2289LM1086IS-5.0 Datasheet

Current PartRFQ

LM1086IS-5.0/NOPB

Texas InstrumentsIn Stock: 1224LM1086IS-5.0/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM1086IS-5.0 is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 5V
• Minimum output current rating of 1.5A
• Maximum input voltage of 25V or greater
• Voltage dropout specification of 1.5V @ 1.5A or lower
• Identical or compatible package type: TO-263 (DDPAK-3)
• Equivalent protection features: Over-current, over-temperature, and short-circuit protection
• Operating temperature range of -40°C ~ 125°C or wider
• Surface Mount mounting type

The LM1086IS-5.0/NOPB qualifies as a parametric equivalent based on complete alignment with all specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

The LM1086IS-5.0/NOPB is a direct parametric equivalent suitable for replacing the LM1086IS-5.0. Both parts are manufactured by Texas Instruments and maintain identical electrical specifications and package configuration.

The primary distinction between these parts is product status: the LM1086IS-5.0 is Last Time Buy, while the LM1086IS-5.0/NOPB maintains Active status. For new designs and ongoing procurement, the LM1086IS-5.0/NOPB is the recommended selection due to continued availability and manufacturing support.

Both parts satisfy ROHS3 compliance and REACH unaffected requirements. Moisture sensitivity level (MSL 3, 168 hours) and handling procedures remain identical between the two variants.

Frequently Asked Questions (FAQ)

Q: Can the LM1086IS-5.0/NOPB directly replace the LM1086IS-5.0 in existing designs?

A: Yes. The LM1086IS-5.0/NOPB is a parametric equivalent with identical electrical performance, output voltage, current rating, package type, and protection features. No circuit modifications are required.

Q: What is the difference between LM1086IS-5.0 and LM1086IS-5.0/NOPB?

A: The primary difference is product lifecycle status. The LM1086IS-5.0 is Last Time Buy (discontinued), while LM1086IS-5.0/NOPB is Active. The "/NOPB" designation indicates lead-free plating. All electrical and mechanical specifications are identical.

Q: Are both parts compatible with the same PCB footprint?

A: Yes. Both parts use the TO-263 (DDPAK-3) package type with identical pin configuration and mechanical dimensions. PCB layout and footprint remain unchanged.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant and REACH unaffected. Moisture sensitivity level is MSL 3 with a 168-hour floor life requirement.

Q: Why is the LM1086IS-5.0 marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has discontinued production. The LM1086IS-5.0/NOPB remains in active production and is the recommended choice for new procurement and design continuity.