LM25007SDX Equivalent & Substitute Parts

Part Overview

The LM25007SDX is a buck switching regulator IC from Texas Instruments designed for step-down voltage conversion applications. It delivers positive adjustable output from 2.5V to 37V with a maximum output current of 500mA, operating across an input voltage range of 9V to 42V. The device features a switching frequency up to 800kHz and is housed in an 8-WDFN exposed pad surface mount package.

The LM25007SDX is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications currently utilizing this component.

Substiute Parts

LM25007SDX

Texas InstrumentsIn Stock: 2442LM25007SDX Datasheet

Current PartRFQ

LM25007SDX/NOPB

Texas InstrumentsIn Stock: 2423LM25007SDX/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM25007SDX is determined by strict equivalence across the following critical parameters:

• Function and topology (step-down buck converter)
• Output configuration (positive adjustable)
• Electrical specifications (input voltage range 9V–42V, output range 2.5V–37V, 500mA output current)
• Switching frequency (up to 800kHz)
• Package type (8-WDFN exposed pad, 8-WSON 4x4)
• Operating temperature range (-40°C to 125°C)
• Mounting technology (surface mount)

The LM25007SDX/NOPB is identified as a direct substitute based on identical electrical and mechanical specifications. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The LM25007SDX/NOPB is the direct equivalent for the obsolete LM25007SDX. Both parts share identical electrical and mechanical specifications, ensuring pin-for-pin and functional compatibility.

The LM25007SDX/NOPB offers two significant advantages:

1. Active product status: The substitute is currently in active production and supported by Texas Instruments, ensuring long-term availability and technical support.

2. Compliance certification: The LM25007SDX/NOPB is ROHS3 compliant, whereas the original LM25007SDX is RoHS non-compliant. This distinction is critical for applications subject to RoHS regulations or customer requirements.

The packaging difference (tape & reel for the substitute versus bulk for the original) reflects standard modern distribution practices and does not affect electrical or mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Are the LM25007SDX and LM25007SDX/NOPB electrically identical?

A: Yes. Both parts deliver identical electrical performance across all specified parameters, including input voltage range (9V–42V), adjustable output range (2.5V–37V), output current (500mA), and switching frequency (up to 800kHz).

Q: What does the "/NOPB" suffix indicate?

A: The "/NOPB" suffix designates a lead-free, RoHS3 compliant version without plumbum (lead). This reflects the manufacturing process and compliance certification rather than functional differences.

Q: Can I use the LM25007SDX/NOPB as a direct replacement in existing designs?

A: Yes. The LM25007SDX/NOPB is a direct pin-for-pin and functional replacement. No circuit modifications are required.

Q: Why is the original LM25007SDX obsolete?

A: The LM25007SDX has been discontinued by Texas Instruments. The LM25007SDX/NOPB represents the current active equivalent and is the recommended part for new designs and ongoing production.

Q: Does the tape & reel packaging affect compatibility?

A: No. Tape & reel packaging is a distribution format only and does not affect electrical or mechanical compatibility. The component itself remains identical.

Q: Are there any compliance differences I should consider?

A: Yes. The LM25007SDX/NOPB is ROHS3 compliant, while the original LM25007SDX is RoHS non-compliant. If your application or customer requirements mandate RoHS compliance, the LM25007SDX/NOPB is the appropriate choice.