LM2852YMXA-1.2 Equivalent & Substitute Parts

Part Overview

The LM2852YMXA-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 500kHz switching frequency with integrated synchronous rectification. The main part number is currently listed as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement.

Substiute Parts

LM2852YMXA-1.2

Texas InstrumentsIn Stock: 2195LM2852YMXA-1.2 Datasheet

Current PartRFQ

LM2852YMXA-1.2/NOPB

Texas InstrumentsIn Stock: 4394LM2852YMXA-1.2/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM2852YMXA-1.2 is determined by 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
• 500kHz switching frequency
• 14-PowerTSSOP package configuration
• Operating temperature range of -40°C to 125°C

The LM2852YMXA-1.2/NOPB represents a direct equivalent part from the same manufacturer and base product series (LM2852), maintaining identical electrical specifications and package footprint. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The LM2852YMXA-1.2/NOPB is the direct active equivalent for the obsolete LM2852YMXA-1.2. Selection between these parts is determined by regulatory and procurement requirements:

The LM2852YMXA-1.2/NOPB is recommended for new designs and ongoing production due to its active product status and ROHS3 compliance certification. This part maintains identical electrical performance and mechanical compatibility while offering current availability and regulatory alignment.

The original LM2852YMXA-1.2 should be considered only for legacy system maintenance where existing inventory is available and RoHS non-compliance is acceptable for the application.

Both parts are REACH Unaffected and classified under ECCN EAR99 with HTSUS code 8542.39.0001. Moisture sensitivity level is 1 (Unlimited) for both variants.

Frequently Asked Questions (FAQ)

Q: Are LM2852YMXA-1.2 and LM2852YMXA-1.2/NOPB electrically identical?

A: Yes. Both parts share identical electrical specifications including 1.2V fixed output, 2A current capacity, 2.85V to 5.5V input range, 500kHz switching frequency, and synchronous rectification. Operating temperature range and package footprint are also identical.

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

A: The primary differences are product status and compliance. LM2852YMXA-1.2/NOPB is an active product with ROHS3 compliance, while LM2852YMXA-1.2 is obsolete and RoHS non-compliant. The /NOPB suffix indicates lead-free plating. Packaging differs: LM2852YMXA-1.2/NOPB is supplied in Tube format.

Q: Can I use LM2852YMXA-1.2/NOPB as a direct replacement in existing designs?

A: Yes. The LM2852YMXA-1.2/NOPB is a direct pin-for-pin and footprint-compatible replacement. No PCB layout modifications are required. The 14-PowerTSSOP package dimensions are identical.

Q: Why is the original part marked as obsolete?

A: Product obsolescence typically reflects manufacturer discontinuation decisions. The LM2852YMXA-1.2/NOPB represents the current active equivalent from Texas Instruments for this functional specification.

Q: Are there any compliance considerations when switching between these parts?

A: Yes. If your application or market requires RoHS compliance, the LM2852YMXA-1.2/NOPB (ROHS3 compliant) is the appropriate selection. Both parts are REACH Unaffected and EAR99 classified.