Equivalent & Substitute Parts Reference: LP2989IM-1.8/NOPB

Part Overview

The LP2989IM-1.8/NOPB from Texas Instruments is an active Power Management IC in the Linear Voltage Regulator category, designed for fixed 1.8V positive output with a maximum output current of 500mA. It features protection mechanisms including over-current, over-temperature, and short-circuit, and incorporates enable control. Selection of alternative models is sometimes necessary due to sourcing logistics, compliance requirements, or inventory constraints while maintaining identical functional performance.

Substiute Parts

LP2989IM-1.8/NOPB

Texas InstrumentsIn Stock: 1955LP2989IM-1.8/NOPB Datasheet

Current PartRFQ

LP2989AIM-1.8/NOPB

Texas InstrumentsIn Stock: 892LP2989AIM-1.8/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute and equivalent part selection is determined based strictly on the following key electrical, mechanical, and compliance parameters: manufacturer, output configuration (positive), output type (fixed), number of regulators (1), voltage - input (max) (16V), voltage - output (min/fixed) (1.8V), voltage dropout (max) (0.65V @ 500mA), current - output (500mA), current - quiescent (Iq) (175 µA), current - supply (max) (9 mA), PSRR (60dB @ 1 kHz), control features (enable), protection features (over current, over temperature, short circuit), operating temperature (-40°C ~ 125°C), mounting type (surface mount), package/case (8-SOIC), RoHS and REACH status, MSL (1 Unlimited), ECCN (EAR99), and HTSUS.

Parameter Comparison

Engineering Selection Recommendations

Both the LP2989IM-1.8/NOPB and its substitute LP2989AIM-1.8/NOPB are active-status parts with identical compliance, RoHS3 conformance, REACH unaffected status, MSL (1 Unlimited), and ECCN coding. Selection is strictly aligned with these criteria. Sourcing decisions between these part numbers can be made based on current inventory levels and logistics while ensuring all regulatory and compliance statuses are matched.

Frequently Asked Questions (FAQ)

Q1: What determines whether LP2989AIM-1.8/NOPB is a suitable substitute for LP2989IM-1.8/NOPB?
A1: The substitution is defined strictly by matching all provided electrical parameters, mechanical dimensions, package specifications, and compliance statuses.

Q2: Are there any differences in packaging or mounting style between these models?
A2: Both models use tube packaging and 8-SOIC surface mount packages.

Q3: Does the substitute part maintain the same protection and control features?
A3: Yes, both parts feature enable control and identical protection features: over current, over temperature, and short circuit.

Q4: How does the operating temperature range compare between these parts?
A4: Both parts are rated for an operating temperature range of -40°C to 125°C.

Q5: Are these substitutes compliant with RoHS3 and REACH standards?
A5: Yes, both models are RoHS3 compliant and REACH unaffected, with MSL 1 (Unlimited).

Q6: Can inventory considerations alone dictate substitute selection?
A6: When regulatory compliance and all provided parameters are matched, inventory availability is an allowable criterion for selection between these part numbers.