LM2670SD-5.0 Equivalent & Substitute Parts

Part Overview

The LM2670SD-5.0 is a buck switching regulator IC from Texas Instruments' SIMPLE SWITCHER® series, designed for step-down voltage conversion with a fixed 5V output at 3A maximum current. This device operates across an input voltage range of 8V to 40V and features a 260kHz switching frequency in a 14-VDFN exposed pad surface mount package.

The LM2670SD-5.0 is classified as obsolete. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this regulator.

Substiute Parts

LM2670SD-5.0

Texas InstrumentsIn Stock: 1041LM2670SD-5.0 Datasheet

Current PartRFQ

LM2670SD-5.0/NOPB

Texas InstrumentsIn Stock: 2032LM2670SD-5.0/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM2670SD-5.0 is determined by strict equivalence across the following critical parameters:

• Output voltage configuration (fixed 5V)
• Maximum output current rating (3A)
• Input voltage operating range (8V to 40V minimum/maximum)
• Switching topology (buck converter)
• Package footprint and pinout (14-VDFN exposed pad)
• Mounting technology (surface mount)
• Operating temperature range (-40°C to 125°C)

The LM2670SD-5.0/NOPB qualifies as a direct substitute based on identical electrical specifications and package compatibility. The primary distinction between these parts is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The LM2670SD-5.0/NOPB is the direct active substitute for the obsolete LM2670SD-5.0. Both parts share identical electrical performance, switching characteristics, and package specifications, ensuring pin-for-pin and functional compatibility.

The LM2670SD-5.0/NOPB offers the advantage of active product status, ensuring continued availability and manufacturing support from Texas Instruments. This part also carries RoHS3 compliance, meeting current environmental and regulatory requirements for new designs and production runs.

For applications requiring the LM2670SD-5.0, transition to the LM2670SD-5.0/NOPB is recommended to maintain supply chain continuity and regulatory compliance. No circuit redesign or board layout modifications are necessary.

Frequently Asked Questions (FAQ)

Q: Can the LM2670SD-5.0/NOPB be used as a direct replacement for the LM2670SD-5.0?

A: Yes. Both parts are electrically and mechanically identical. The LM2670SD-5.0/NOPB is the active production equivalent with identical output voltage (5V), output current (3A), input voltage range (8V to 40V), switching frequency (260kHz), and 14-VDFN package specifications. No circuit modifications are required.

Q: What is the difference between these two part numbers?

A: The primary differences are product status and packaging format. The LM2670SD-5.0 is obsolete, while the LM2670SD-5.0/NOPB is active. The LM2670SD-5.0/NOPB is supplied in Tape & Reel format and carries RoHS3 compliance. Electrical performance and package footprint are identical.

Q: Are there any pin compatibility concerns?

A: No. Both parts use the 14-VDFN exposed pad package with identical pinout and footprint. PCB layouts designed for the LM2670SD-5.0 require no modification for the LM2670SD-5.0/NOPB.

Q: Does the RoHS3 compliance of the LM2670SD-5.0/NOPB affect circuit performance?

A: No. RoHS3 compliance is a material composition and environmental standard. It does not alter electrical performance, thermal characteristics, or functional behavior. The device operates identically to the non-compliant version.

Q: What is the Moisture Sensitivity Level (MSL) for both parts?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage practices are sufficient.