LM337KTTR Equivalent & Substitute Parts Reference

Part Overview

The LM337KTTR is a Texas Instruments Power Management (PMIC) device categorized as a linear voltage regulator IC. It features a negative adjustable output, supporting up to 1.5A output current, with enhanced protection features including over temperature and short circuit protection. The component is provided in a TO-263 (DDPAK-3) surface-mount package. As an active product, it is essential to identify substitute models to address supply chain scenarios, form factor requirements, or compliance status.

Substiute Parts

LM337KTTR

Texas InstrumentsIn Stock: 15316LM337KTTR Datasheet

Current PartRFQ

LM337KVURG3

Texas InstrumentsIn Stock: 30062LM337KVURG3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute selection for LM337KTTR is strictly based on alignment of critical electrical and mechanical parameters. Only components matching output configuration, output type, regulator count, maximum input/output voltages, output current capacity, PSRR, operating temperature range, protection features, mounting type, and compliance certifications are considered valid substitutes.

Parameter Comparison

Engineering Selection Recommendations

The LM337KTTR and substitute LM337KVURG3 are both ROHS3 compliant, REACH unaffected, and have matching ECCN classifications. They share equivalent electrical and mechanical parameters including output configuration, output type, current capability, voltage ratings, protection features, mounting type, and compliance standards. Selection between the two can be aligned with inventory availability and packaging requirements as dictated by the application's assembly process and procurement policy.

Frequently Asked Questions (FAQ)

Q: What are the critical parameters for substituting LM337KTTR in Power Management (PMIC) applications?
A: The critical parameters are output configuration (Negative), output type (Adjustable), regulator count (1), input/output voltages, output current capability (1.5A), operating temperature, protection features, mounting type (Surface Mount), and compliance information.

Q: Are LM337KTTR and LM337KVURG3 mechanically interchangeable?
A: LM337KTTR is provided in a TO-263 (DDPAK-3) package, while LM337KVURG3 is supplied in a TO-252-3 (DPAK) package. The selection must consider PCB layout compatibility due to differing package dimensions.

Q: Do substitute parts maintain the same electrical performance?
A: LM337KTTR and LM337KVURG3 have identical electrical characteristics including input/output voltages, output current, PSRR, and protection features. Only package and inventory status differ.

Q: How do compliance standards affect substitute selection?
A: Both LM337KTTR and LM337KVURG3 are ROHS3 compliant, unaffected by REACH, and share the same ECCN classification, ensuring they meet international regulatory requirements for environmental compliance.

Q: Does Moisture Sensitivity Level (MSL) impact the substitution process?
A: Both parts have an MSL rating of 3 (168 Hours), indicating similar handling and storage requirements for surface mount assembly processes.