LM2750SD-ADJ Equivalent & Substitute Parts

Part Overview

The LM2750SD-ADJ is a charge pump switching regulator IC manufactured by Texas Instruments, designed for step-up voltage conversion applications. This component provides positive adjustable output voltage ranging from 3.8V to 5.2V with a maximum output current of 120mA. The device operates at a switching frequency of 1.7MHz and is housed in a 10-WFDFN exposed pad surface mount package.

The LM2750SD-ADJ is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance of systems utilizing this regulator.

Substiute Parts

LM2750SD-ADJ

Texas InstrumentsIn Stock: 901LM2750SD-ADJ Datasheet

Current PartRFQ

LM2750SD-ADJ/NOPB

National SemiconductorIn Stock: 1541LM2750SD-ADJ/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM2750SD-ADJ is determined by strict equivalence across the following critical parameters:

• Topology & Function: Charge pump step-up regulator architecture
• Output Configuration: Positive adjustable voltage output
• Electrical Specifications: Input voltage range 2.7V–5.6V, output voltage range 3.8V–5.2V, output current 120mA
• Switching Frequency: 1.7MHz operation
• Package & Pinout: 10-WFDFN exposed pad surface mount package (10-WSON 3x3)
• Operating Temperature Range: -40°C to 125°C

The substitute part LM2750SD-ADJ/NOPB meets all these criteria and is therefore electrically and mechanically interchangeable with the original part.

Parameter Comparison

Engineering Selection Recommendations

The LM2750SD-ADJ/NOPB is a direct functional equivalent to the LM2750SD-ADJ. Both parts share identical electrical specifications, package geometry, and pinout configuration. The primary distinction is product status: the original LM2750SD-ADJ is obsolete, while the LM2750SD-ADJ/NOPB maintains active status with National Semiconductor.

For new designs or ongoing production requiring this charge pump regulator topology, the LM2750SD-ADJ/NOPB is the appropriate selection. Both parts carry identical export classification (EAR99) and tariff codes (HTSUS 8542.39.0001), ensuring regulatory consistency.

Frequently Asked Questions (FAQ)

Q: Can the LM2750SD-ADJ/NOPB be used as a direct replacement for the LM2750SD-ADJ?

A: Yes. Both parts are electrically and mechanically identical. They share the same input voltage range (2.7V–5.6V), output voltage range (3.8V–5.2V), output current rating (120mA), switching frequency (1.7MHz), and 10-WFDFN package configuration. Pin-for-pin substitution is valid.

Q: What does the "/NOPB" suffix indicate?

A: The "/NOPB" suffix denotes "No Plumbum" (lead-free) packaging. This indicates compliance with lead-free manufacturing standards. Both the main part and substitute are functionally equivalent; the suffix reflects packaging and material composition only.

Q: Are there any compliance or certification differences between these parts?

A: Both parts carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications. No compliance or certification differences exist between the two parts.

Q: Why is the original LM2750SD-ADJ listed as obsolete?

A: Product obsolescence is determined by the manufacturer. The LM2750SD-ADJ/NOPB maintains active production status and is the recommended source for this regulator topology.

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

A: The LM2750SD-ADJ/NOPB has higher current inventory availability (1483 pcs) compared to the original part (827 pcs). For supply chain continuity, the substitute part is the preferred selection.