LM2852XMXA-3.3 Equivalent & Substitute Parts

Part Overview

The LM2852XMXA-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 a 1.5MHz switching frequency with integrated synchronous rectification. The main part number is currently listed as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

LM2852XMXA-3.3

Texas InstrumentsIn Stock: 1272LM2852XMXA-3.3 Datasheet

Current PartRFQ

LM2852XMXA-3.3/NOPB

Texas InstrumentsIn Stock: 1553LM2852XMXA-3.3/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM2852XMXA-3.3 is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 3.3V
• 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 LM2852XMXA-3.3/NOPB qualifies as a direct substitute based on identical electrical specifications and package footprint. The primary distinction between the main part and its substitute is product status and packaging format, not functional or electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The LM2852XMXA-3.3/NOPB is the direct equivalent for the obsolete LM2852XMXA-3.3. Selection between these parts should be based on the following factors:

Product Status: The LM2852XMXA-3.3/NOPB carries Active status, ensuring continued availability and manufacturing support from Texas Instruments. The original part number is Obsolete, limiting future procurement options.

Regulatory Compliance: The LM2852XMXA-3.3/NOPB is ROHS3 Compliant, whereas the main part is RoHS non-compliant. For applications subject to RoHS regulations or requiring compliance documentation, the substitute part is the appropriate selection.

Packaging: The LM2852XMXA-3.3/NOPB is supplied in Tube packaging, providing standard handling and storage conditions for surface mount components.

Both parts share identical electrical specifications, thermal characteristics, and package footprint, ensuring direct PCB compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Can the LM2852XMXA-3.3/NOPB be used as a direct replacement for the LM2852XMXA-3.3?

A: Yes. Both parts are electrically and mechanically identical. They share the same output voltage (3.3V), output current (2A), input voltage range (2.85V to 5.5V), switching frequency (1.5MHz), and 14-PowerTSSOP package footprint. No circuit modifications or PCB redesign is required.

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

A: The "/NOPB" designation indicates "No Plumbum" (lead-free) packaging and is associated with the ROHS3 Compliant version of the part. This suffix distinguishes the active, compliant variant from the obsolete original.

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

A: No. Both parts operate across the identical temperature range (-40°C to 125°C junction temperature) and deliver the same switching frequency (1.5MHz) and synchronous rectification performance.

Q: Why is the original part listed as obsolete?

A: Product obsolescence is determined by the manufacturer based on market demand and production decisions. The LM2852XMXA-3.3/NOPB remains in active production and is the recommended selection for new designs and ongoing procurement.

Q: Are there inventory considerations when selecting between these parts?

A: The LM2852XMXA-3.3/NOPB has higher current inventory availability (1472 Pcs) compared to the original part (1243 Pcs), supporting consistent supply for production requirements.