LM2852XMXAX-3.3 Equivalent & Substitute Parts

Part Overview

The LM2852XMXAX-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 identification of active equivalent parts essential for new designs and ongoing production support.

Substiute Parts

LM2852XMXAX-3.3

Texas InstrumentsIn Stock: 5389LM2852XMXAX-3.3 Datasheet

Current PartRFQ

LM2852XMXAX-3.3/NOPB

Texas InstrumentsIn Stock: 6025LM2852XMXAX-3.3/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM2852XMXAX-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 LM2852XMXAX-3.3/NOPB qualifies as a direct substitute based on identical electrical specifications and package footprint. The primary distinction between these part numbers lies in packaging format (bulk versus tape & reel) and product status (obsolete versus active).

Parameter Comparison

Engineering Selection Recommendations

The LM2852XMXAX-3.3/NOPB is the active equivalent for the obsolete LM2852XMXAX-3.3. Both parts share identical electrical and mechanical specifications, ensuring direct functional compatibility in existing circuit designs. The substitute part offers the advantage of active product status, ensuring continued availability and manufacturing support.

The LM2852XMXAX-3.3/NOPB carries ROHS3 compliance, whereas the original part is RoHS non-compliant. This distinction is significant for applications subject to RoHS regulations. The packaging format difference (tape & reel versus bulk) reflects standard distribution practices and does not affect electrical performance or PCB footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can LM2852XMXAX-3.3/NOPB be used as a direct replacement for LM2852XMXAX-3.3?

A: Yes. Both parts are electrically and mechanically identical, with 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. The suffix difference reflects packaging format and product status only.

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

A: The "/NOPB" designation indicates tape & reel packaging format without plating on the leads. The original part uses bulk packaging. Both formats are compatible with standard surface mount assembly processes.

Q: Why is the original part marked as obsolete?

A: Product obsolescence is determined by the manufacturer based on market demand and production decisions. The active equivalent LM2852XMXAX-3.3/NOPB provides continued access to the same functionality.

Q: Are there compliance differences between these parts?

A: The LM2852XMXAX-3.3/NOPB is ROHS3 compliant, while the original part is RoHS non-compliant. For applications requiring RoHS compliance, the substitute part is the appropriate selection.

Q: Will the PCB footprint remain the same?

A: Yes. Both parts use the identical 14-PowerTSSOP package with 0.173" width and 4.40mm dimensions, ensuring no PCB layout modifications are required.