LM3526MX-L Equivalent & Substitute Parts

Part Overview

The LM3526MX-L is a Power Management Integrated Circuit (PMIC) classified as a Power Switch/Driver with 1:2 P-Channel configuration, rated for 500mA output current. This component is designed for USB Switch applications with high-side output configuration and integrated status flag functionality. The LM3526MX-L is currently listed as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

LM3526MX-L

Texas InstrumentsIn Stock: 2206LM3526MX-L Datasheet

Current PartRFQ

LM3526MX-H/NOPB

Texas InstrumentsIn Stock: 35834LM3526MX-H/NOPB Datasheet

Parametric EquivalentRFQ

LM3526MX-L/NOPB

Texas InstrumentsIn Stock: 42993LM3526MX-L/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM3526MX-L is determined by strict equivalence across the following critical parameters:

• Switch Configuration: 1:2 P-Channel topology with high-side output
• Current Rating: 500mA maximum output current
• Voltage Range: 2.7V to 5.5V load voltage compatibility
• On-Resistance: 100mOhm typical Rds(on)
• Package: 8-SOIC surface mount form factor
• Interface & Protection: On/Off control with status flag, current limiting, over-temperature, and UVLO fault protection
• Thermal Range: -40°C to 125°C junction temperature operation

The identified substitute parts maintain identical electrical specifications and mechanical compatibility with the obsolete LM3526MX-L, differing only in product status and packaging format (Cut Tape & Digi-Reel availability).

Parameter Comparison

Engineering Selection Recommendations

Both LM3526MX-H/NOPB and LM3526MX-L/NOPB are active product variants manufactured by Texas Instruments with identical electrical and mechanical specifications to the obsolete LM3526MX-L. Selection between these substitutes is based on procurement and packaging requirements:

LM3526MX-H/NOPB: Active status with 35,800 units in stock. Available in Cut Tape and Digi-Reel packaging formats. Suitable for standard procurement channels and volume applications.

LM3526MX-L/NOPB: Active status with 42,900 units in stock. Available in Cut Tape and Digi-Reel packaging formats. Higher inventory availability supports extended production runs and supply chain continuity.

Both parts maintain full compliance with ROHS3 and REACH regulations. No functional or electrical differences exist between the substitute options and the original LM3526MX-L specification.

Frequently Asked Questions (FAQ)

Q: Can LM3526MX-H/NOPB and LM3526MX-L/NOPB be used interchangeably with LM3526MX-L?

A: Yes. Both substitute parts are parametrically equivalent across all electrical specifications, output configuration, current rating, voltage range, on-resistance, package form factor, and thermal operating range. Direct substitution is supported without circuit modification.

Q: What is the difference between the LM3526MX-H/NOPB and LM3526MX-L/NOPB variants?

A: Both parts are functionally identical. The designation difference reflects internal Texas Instruments product line management. Electrical performance, package dimensions, and pin configuration are identical. Selection may be based on inventory availability and supplier packaging options.

Q: Are the substitute parts available in the same 8-SOIC package?

A: Yes. All three parts—LM3526MX-L, LM3526MX-H/NOPB, and LM3526MX-L/NOPB—use the 8-SOIC (0.154", 3.90mm Width) surface mount package. PCB layout and footprint compatibility is maintained across all variants.

Q: What is the significance of the /NOPB suffix?

A: The /NOPB designation indicates the part is supplied without plumbum (lead-free) in compliance with RoHS3 standards. This is consistent with the original LM3526MX-L specification.

Q: Are there any compliance or regulatory differences between the parts?

A: No. All three parts maintain identical RoHS3 compliance, REACH unaffected status, and Moisture Sensitivity Level 1 (Unlimited) rating. No additional qualification or testing is required for substitution.