LM2852XMXAX-1.2 Equivalent & Substitute Parts

Part Overview

The LM2852XMXAX-1.2 is a buck switching regulator IC from Texas Instruments' SIMPLE SWITCHER® series, designed for step-down voltage conversion with a fixed 1.2V output and 2A current capacity. This device operates across an input voltage range of 2.85V to 5.5V and features a 1.5MHz switching frequency with integrated synchronous rectification. The main part number is currently listed as obsolete, making substitute parts necessary for new designs and ongoing production requirements.

Substiute Parts

LM2852XMXAX-1.2

Texas InstrumentsIn Stock: 6709LM2852XMXAX-1.2 Datasheet

Current PartRFQ

LM2852XMXAX-1.2/NOPB

Texas InstrumentsIn Stock: 2718LM2852XMXAX-1.2/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM2852XMXAX-1.2 is based on strict equivalence across the following critical parameters:

• Fixed output voltage of 1.2V
• Output current rating of 2A
• Input voltage range of 2.85V to 5.5V
• Buck topology with synchronous rectification
• 1.5MHz switching frequency
• 14-PowerTSSOP package configuration
• Operating temperature range of -40°C to 125°C

The LM2852XMXAX-1.2/NOPB is identified as a direct substitute, maintaining identical electrical specifications and package form factor while differing only in packaging format (Tape & Reel) and product status (Active vs. Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The LM2852XMXAX-1.2/NOPB is the direct equivalent for the obsolete LM2852XMXAX-1.2. Selection between these parts should be based on the following factors:

Product Status: The main part number is obsolete, while the substitute carries Active status, ensuring long-term availability and continued manufacturer support.

Compliance: The substitute part is ROHS3 compliant, whereas the original is RoHS non-compliant. This distinction is critical for applications subject to RoHS regulations or customer requirements mandating compliant components.

Packaging: The original part is supplied in bulk packaging, while the substitute is available in Tape & Reel format. Tape & Reel packaging is standard for automated assembly processes and reduces handling risk during production.

Electrical Equivalence: All electrical parameters, thermal specifications, and functional characteristics remain identical between the two part numbers, ensuring direct functional substitution without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can the LM2852XMXAX-1.2/NOPB be used as a direct replacement for the LM2852XMXAX-1.2?

A: Yes. Both parts are electrically and functionally identical, with identical output voltage (1.2V), output current (2A), input voltage range (2.85V–5.5V), switching frequency (1.5MHz), package configuration (14-PowerTSSOP), and operating temperature range (-40°C to 125°C). The differences are limited to product status (Active vs. Obsolete), RoHS compliance level, and packaging format.

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

A: The /NOPB designation indicates the part is supplied without lead (Pb), reflecting RoHS3 compliance. This is a standard Texas Instruments nomenclature convention for lead-free variants.

Q: Are there any circuit modifications required when switching from LM2852XMXAX-1.2 to LM2852XMXAX-1.2/NOPB?

A: No circuit modifications are required. The parts are pin-compatible and functionally equivalent. PCB layout and external component values remain unchanged.

Q: What is the difference between bulk and Tape & Reel packaging?

A: Bulk packaging supplies components loose or in trays, suitable for manual assembly or small-volume applications. Tape & Reel packaging places components on continuous carrier tape wound on reels, optimized for automated pick-and-place assembly equipment and high-volume production.

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance relates to material composition and environmental regulations, not electrical performance. Both parts deliver identical electrical specifications and thermal characteristics.

Q: What is the Moisture Sensitivity Level (MSL) rating?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These components can be stored and handled without special humidity controls or baking procedures prior to soldering.