LM2717MTX Buck Switching Regulator IC Equivalent & Substitute Parts

Part Overview

The LM2717MTX is a buck switching regulator IC manufactured by Texas Instruments, designed for positive fixed 3.3V output applications. This device functions as a step-down converter with dual output capability, delivering 2.2A and 3.2A output currents across a 4V to 20V input voltage range. The LM2717MTX is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and access components with active manufacturing status and current compliance certifications.

Substiute Parts

LM2717MTX

Texas InstrumentsIn Stock: 2270LM2717MTX Datasheet

Current PartRFQ

LM2717MTX/NOPB

Texas InstrumentsIn Stock: 3549LM2717MTX/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM2717MTX is determined by strict equivalence across the following critical parameters:

• Identical base product number (LM2717)
• Matching output voltage specification (3.3V fixed)
• Matching output current ratings (2.2A, 3.2A dual output)
• Identical input voltage range (4V to 20V)
• Identical switching frequency range (300kHz ~ 600kHz)
• Identical package type (24-TSSOP)
• Identical mounting type (Surface Mount)
• Identical operating temperature range (-40°C ~ 125°C)

The LM2717MTX/NOPB is a direct substitute that maintains all electrical and mechanical specifications while offering active product status and improved compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The LM2717MTX/NOPB is the direct substitute for the obsolete LM2717MTX. Both devices share identical electrical specifications and package configurations. The primary distinction is product lifecycle status: the LM2717MTX is obsolete, while the LM2717MTX/NOPB maintains active manufacturing status. Additionally, the LM2717MTX/NOPB carries ROHS3 compliance certification, whereas the original LM2717MTX is RoHS non-compliant. For new designs or component replenishment, the LM2717MTX/NOPB is the appropriate selection. The /NOPB suffix indicates lead-free plating and RoHS compliance. Both devices are supplied in 24-TSSOP surface mount packages with identical thermal and electrical performance characteristics.

Frequently Asked Questions (FAQ)

Q: What does the /NOPB suffix indicate on the LM2717MTX/NOPB?

A: The /NOPB designation signifies "No Plumbum" (lead-free) and indicates the device meets RoHS3 compliance requirements with lead-free plating.

Q: Are the LM2717MTX and LM2717MTX/NOPB electrically interchangeable?

A: Yes. Both devices deliver identical electrical performance across all specified parameters: 3.3V fixed output, 2.2A and 3.2A dual outputs, 4V to 20V input range, and 300kHz to 600kHz switching frequency.

Q: What is the difference in packaging between these two parts?

A: The LM2717MTX is supplied in bulk packaging, while the LM2717MTX/NOPB is supplied in Tape & Reel (TR) format. Both use the same 24-TSSOP physical package.

Q: Why is the LM2717MTX marked as obsolete?

A: The LM2717MTX has reached end-of-life status. The LM2717MTX/NOPB represents the active production equivalent with current compliance certifications.

Q: Can I use the LM2717MTX/NOPB as a direct replacement in existing designs?

A: Yes. The LM2717MTX/NOPB is a direct pin-for-pin and functionally equivalent replacement. No circuit modifications are required.

Q: What are the moisture sensitivity requirements for storage?

A: Both devices carry MSL Level 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.