LP2950CDTX-3.0 Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The LP2950CDTX-3.0 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 3V output at 100mA in a TO-252-3 surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The device provides regulated power management with integrated protection features including over-current, over-temperature, and short-circuit protection across an operating temperature range of -40°C to 125°C.

Substiute Parts

LP2950CDTX-3.0

Texas InstrumentsIn Stock: 931LP2950CDTX-3.0 Datasheet

Current PartRFQ

LP2950CDTX-3.0/NOPB

Texas InstrumentsIn Stock: 1198LP2950CDTX-3.0/NOPB Datasheet

Parametric EquivalentRFQ

BA03CC0FP-E2

Rohm SemiconductorIn Stock: 2333BA03CC0FP-E2 Datasheet

MFR RecommendedRFQ

LP2950CDT-3.0RKG

onsemiIn Stock: 3122LP2950CDT-3.0RKG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LP2950CDTX-3.0 is determined by the following critical parameters: fixed 3V output voltage, 100mA output current capability, TO-252-3 package compatibility, maximum 30V input voltage rating, and operating temperature range of -40°C to 125°C. Parts meeting these core electrical and mechanical specifications are classified as direct substitutes. The BA03CC0FP-E2 from Rohm Semiconductor provides higher output current (1A) while maintaining the same output voltage and package, making it suitable for applications requiring additional current margin. The LP2950CDT-3.0RKG from onsemi matches the original specifications precisely with improved dropout voltage performance.

Parameter Comparison

Engineering Selection Recommendations

The LP2950CDTX-3.0/NOPB from Texas Instruments is the primary parametric equivalent, offering identical electrical specifications with active product status and ROHS3 compliance. This part is the direct replacement for obsolete stock management.

The LP2950CDT-3.0RKG from onsemi provides equivalent performance with improved dropout voltage (0.45V versus 0.6V), active status, and ROHS3 compliance. This option is suitable for applications where lower dropout voltage improves efficiency.

The BA03CC0FP-E2 from Rohm Semiconductor offers higher output current capability (1A versus 100mA) while maintaining 3V output and TO-252-3 package compatibility. This part is applicable for designs requiring additional current headroom, though the maximum input voltage is reduced to 25V and quiescent current is higher at 2.5mA.

All substitute parts maintain TO-252-3 package compatibility, identical output voltage, and operating temperature range. Selection should be based on specific application requirements for output current, dropout voltage performance, and compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can LP2950CDTX-3.0/NOPB directly replace LP2950CDTX-3.0?

A: Yes. Both parts have identical electrical specifications: 3V fixed output, 100mA output current, 30V maximum input voltage, 0.6V dropout voltage, and TO-252-3 package. The primary difference is product status (active versus obsolete) and RoHS compliance (ROHS3 versus non-compliant).

Q: What is the difference between LP2950CDT-3.0RKG and LP2950CDTX-3.0?

A: Both provide 3V output at 100mA in TO-252-3 packages with identical quiescent current (120µA). The LP2950CDT-3.0RKG has lower dropout voltage (0.45V versus 0.6V) and is manufactured by onsemi with active status and ROHS3 compliance.

Q: Can BA03CC0FP-E2 replace LP2950CDTX-3.0 in all applications?

A: BA03CC0FP-E2 maintains 3V output and TO-252-3 package compatibility but differs in three parameters: output current is 1A (versus 100mA), maximum input voltage is 25V (versus 30V), and quiescent current is 2.5mA (versus 120µA). Substitution is valid only when the application does not require 30V input voltage and can tolerate higher quiescent current.

Q: Are all substitute parts in the same package?

A: Yes. All parts use TO-252-3 DPAK (2 Leads + Tab) SC-63 package, ensuring mechanical and pin compatibility.

Q: What compliance certifications apply to substitute parts?

A: LP2950CDTX-3.0/NOPB, BA03CC0FP-E2, and LP2950CDT-3.0RKG are all ROHS3 compliant and REACH unaffected. The original LP2950CDTX-3.0 is RoHS non-compliant.