LM2852YMXAX-3.3 Equivalent & Substitute Parts

Part Overview

The LM2852YMXAX-3.3 is a buck switching regulator IC from Texas Instruments' SIMPLE SWITCHER® series, designed for step-down voltage conversion with a fixed 3.3V output and 2A current capacity. This device operates across an input voltage range of 2.85V to 5.5V and features synchronous rectification for improved efficiency. The main part number is currently listed as obsolete, making identification of suitable alternatives essential for ongoing design support and production continuity.

Substiute Parts

LM2852YMXAX-3.3

Texas InstrumentsIn Stock: 2338LM2852YMXAX-3.3 Datasheet

Current PartRFQ

LM2852YMXAX-3.3/NOPB

Texas InstrumentsIn Stock: 1972LM2852YMXAX-3.3/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM2852YMXAX-3.3 is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 3.3V
• Minimum output current rating of 2A
• Input voltage range compatibility (2.85V to 5.5V minimum)
• Buck topology with synchronous rectification
• 14-PowerTSSOP package footprint
• Operating temperature range of -40°C to 125°C
• Surface mount configuration

The LM2852YMXAX-3.3/NOPB qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction between these part numbers relates to packaging format and product status classification.

Parameter Comparison

Engineering Selection Recommendations

The LM2852YMXAX-3.3/NOPB is the direct functional equivalent of the LM2852YMXAX-3.3. Selection between these part numbers should be based on the following factors:

Product Status: The original LM2852YMXAX-3.3 is classified as obsolete, while the LM2852YMXAX-3.3/NOPB maintains active status. For new designs or production continuity, the active part number is the appropriate choice.

Regulatory Compliance: The LM2852YMXAX-3.3/NOPB carries ROHS3 compliance certification, whereas the original part is RoHS non-compliant. Applications subject to RoHS requirements must use the compliant variant.

Packaging Format: Both part numbers are supplied in the same 14-PowerTSSOP package with identical footprint dimensions. The LM2852YMXAX-3.3/NOPB is available in Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® formats, providing flexibility for different procurement and assembly workflows.

Electrical Equivalence: All electrical parameters, including output voltage, current rating, input voltage range, switching frequency, and thermal specifications, are identical between the two part numbers.

Frequently Asked Questions (FAQ)

Q: Can the LM2852YMXAX-3.3/NOPB be used as a direct replacement for the LM2852YMXAX-3.3?

A: Yes. The LM2852YMXAX-3.3/NOPB is electrically and mechanically equivalent to the LM2852YMXAX-3.3. Both devices feature identical output voltage (3.3V), output current (2A), input voltage range (2.85V to 5.5V), switching frequency (500kHz), and package configuration (14-PowerTSSOP). No circuit modifications are required for substitution.

Q: What is the difference between LM2852YMXAX-3.3 and LM2852YMXAX-3.3/NOPB?

A: The primary differences are product status and regulatory compliance. The LM2852YMXAX-3.3 is obsolete and RoHS non-compliant, while the LM2852YMXAX-3.3/NOPB is active and ROHS3 compliant. The "/NOPB" suffix indicates lead-free (Pb-free) construction. Packaging format also differs: the substitute is supplied in Tape & Reel or Cut Tape formats.

Q: Are there any thermal or performance differences between these part numbers?

A: No. Both part numbers operate across the same temperature range (-40°C to 125°C junction temperature) and deliver identical performance characteristics. Switching frequency, synchronous rectification capability, and current output specifications are unchanged.

Q: What packaging options are available for the substitute part?

A: The LM2852YMXAX-3.3/NOPB is available in Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® formats. Both formats maintain the same 14-PowerTSSOP package footprint and are suitable for automated assembly processes.

Q: Is the 14-PowerTSSOP package footprint identical between both part numbers?

A: Yes. Both the LM2852YMXAX-3.3 and LM2852YMXAX-3.3/NOPB use the 14-PowerTSSOP package with dimensions of 0.173" × 4.40mm width. PCB layouts and footprints are fully compatible without modification.

Q: Which part number should be selected for new designs?

A: The LM2852YMXAX-3.3/NOPB should be selected for new designs. This part number is active, ROHS3 compliant, and available in standard packaging formats suitable for production environments.