Equivalent & Substitute Parts for LP5900SD-1.5 Linear Voltage Regulator

Part Overview

The LP5900SD-1.5, manufactured by Texas Instruments, is a Power Management IC (PMIC) designed as a linear voltage regulator with positive fixed output of 1.5V and maximum output current of 150mA in a compact 6-WSON (2.2x2.5) surface-mount package. It features enable control, over temperature and short-circuit protection, and is suitable for applications requiring regulated low-voltage output. The part is obsolete, necessitating the identification of alternative models to maintain supply chain continuity and design compatibility.

Substiute Parts

LP5900SD-1.5

Texas InstrumentsIn Stock: 1932LP5900SD-1.5 Datasheet

Current PartRFQ

LP5900SD-1.5/NOPB

Texas InstrumentsIn Stock: 2307LP5900SD-1.5/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP5900SD-1.5 linear voltage regulator are selected strictly based on matching the following key parameters: package/case, supplier device package, mounting type, output configuration, output type, number of regulators, input and fixed output voltages, output current, maximum dropout voltage, quiescent and supply currents, PSRR, control features, protection features, operating temperature range, and regulatory compliance attributes (RoHS, MSL, REACH, ECCN). Only parts matching all provided attributes qualify as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The LP5900SD-1.5 is obsolete and RoHS non-compliant. For designs requiring ongoing component availability and RoHS compliance, LP5900SD-1.5/NOPB provides a direct substitute. Both parts maintain identical key electrical and mechanical parameters. The substitute part is active and meets ROHS3 requirements as well as all provided regulatory and environmental certifications.

Frequently Asked Questions (FAQ)

Q: What are the essential parameters when selecting an equivalent for LP5900SD-1.5?
A: Essential substitution criteria include electrical specifications (input voltage, fixed output voltage, output current, dropout voltage, PSRR), mechanical specifications (package/case, supplier device package, mounting type), control and protection features, operating temperature range, and regulatory compliance (RoHS, REACH, MSL, ECCN).

Q: Is the package identical between LP5900SD-1.5 and LP5900SD-1.5/NOPB?
A: Both parts use the 6-WDFN Exposed Pad case and 6-WSON (2.2x2.5) supplier device package, ensuring direct mechanical compatibility.

Q: How does RoHS status affect part selection?
A: RoHS compliance is required for many applications. LP5900SD-1.5/NOPB is ROHS3 compliant, while LP5900SD-1.5 is non-compliant. Selection should be based on compliance needs.

Q: Are there any differences in thermal or electrical performance between the two models?
A: All provided electrical and mechanical specifications are identical.

Q: What is the recommended substitute for the obsolete LP5900SD-1.5?
A: The designated direct equivalent based on all provided criteria is Texas Instruments LP5900SD-1.5/NOPB.