LP2950CDT-5.0/NOPB Equivalent & Substitute Parts

Part Overview

The LP2950CDT-5.0/NOPB is a linear voltage regulator IC manufactured by Texas Instruments, designed to provide a fixed 5V positive output with 100mA current capacity. This Surface Mount device in TO-252-3 (DPAK) packaging is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, design flexibility, or application-specific requirements within the allowed parameter ranges.

Substiute Parts

LP2950CDT-5.0/NOPB

Texas InstrumentsIn Stock: 1203LP2950CDT-5.0/NOPB Datasheet

Current PartRFQ

BA05CC0FP-E2

Rohm SemiconductorIn Stock: 40700BA05CC0FP-E2 Datasheet

MFR RecommendedRFQ

BA17805FP-E2

Rohm SemiconductorIn Stock: 29247BA17805FP-E2 Datasheet

MFR RecommendedRFQ

BA178M05FP-E2

Rohm SemiconductorIn Stock: 63911BA178M05FP-E2 Datasheet

MFR RecommendedRFQ

BA7805FP-E2

Rohm SemiconductorIn Stock: 55373BA7805FP-E2 Datasheet

MFR RecommendedRFQ

LD29150DT50R

STMicroelectronicsIn Stock: 4988LD29150DT50R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP2950CDT-5.0/NOPB are qualified based on the following criteria:

Electrical Compatibility Parameters:

• Fixed output voltage of 5V
• Surface Mount packaging in TO-252-3 (DPAK) form factor
• Output current rating equal to or greater than 100mA
• Input voltage maximum rating of 14V or higher
• Operating temperature range that encompasses or matches -40°C to 125°C
• Active product status
• ROHS3 compliance

Substitution Logic: Parts with higher output current ratings (500mA, 1A, or 1.5A) are acceptable substitutes as they provide equivalent or superior performance within the same package footprint. Voltage dropout characteristics and quiescent current variations are acceptable provided the part meets minimum electrical specifications. All substitute parts maintain identical output voltage (5V) and package configuration (TO-252-3).

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the original LP2950CDT-5.0/NOPB specification.

BA05CC0FP-E2 (Rohm Semiconductor): Provides 1A output current in identical TO-252-3 packaging with extended operating temperature range matching the original (-40°C to 125°C). Suitable for applications requiring higher current capacity within the same thermal envelope.

BA178M05FP-E2 (Rohm Semiconductor): Intermediate current rating of 500mA in TO-252-3 packaging. Operating temperature range limited to -40°C to 85°C. Appropriate for moderate current applications where full 1A capacity is unnecessary.

BA7805FP-E2 (Rohm Semiconductor): Delivers 1A output current in TO-252-3 packaging with Over Current and Over Temperature protection. Operating temperature range -40°C to 85°C. Provides enhanced protection features compared to the original design.

BA17805FP-E2 (Rohm Semiconductor): Offers 1A output current in TO-252-3 packaging with 2V typical dropout at 1A. Operating temperature range -40°C to 85°C. Suitable for applications with moderate input voltage margins.

LD29150DT50R (STMicroelectronics): Highest current capacity at 1.5A with superior dropout performance (0.7V @ 1.5A) in TO-252-3 packaging. Operating temperature range -40°C to 125°C matches the original. Input voltage maximum limited to 14V. Optimal for high-current applications with extended temperature requirements.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher output current rating than the original LP2950CDT-5.0/NOPB?

A: Yes. Substitute parts with 500mA, 1A, or 1.5A output ratings are electrically compatible with the 100mA original specification. Higher current capacity does not affect circuit operation when the application draws 100mA or less. The device will operate within its rated parameters.

Q: Are all substitute parts pin-compatible with the LP2950CDT-5.0/NOPB?

A: Yes. All identified substitutes use the TO-252-3 (DPAK) package with identical pinout configuration (2 Leads + Tab). Direct PCB footprint compatibility is maintained across all parts.

Q: What is the significance of the operating temperature range difference between parts?

A: The LP2950CDT-5.0/NOPB and BA05CC0FP-E2 and LD29150DT50R support -40°C to 125°C operation. Other substitutes (BA178M05FP-E2, BA7805FP-E2, BA17805FP-E2) are limited to -40°C to 85°C. Select parts based on your application's thermal requirements. Extended temperature range parts are required for industrial or automotive environments exceeding 85°C.

Q: How do voltage dropout specifications affect substitution?

A: The LP2950CDT-5.0/NOPB specifies 0.6V dropout at 100mA. Substitute parts exhibit varying dropout characteristics depending on output current. LD29150DT50R provides 0.7V @ 1.5A, while others specify 2V @ rated current. Lower dropout is advantageous in low-input-voltage applications. Verify your input voltage margin against the substitute part's dropout specification.

Q: Is the LD29150DT50R suitable if my input voltage exceeds 14V?

A: No. The LD29150DT50R has a maximum input voltage rating of 14V. If your application requires input voltages above 14V, select BA05CC0FP-E2, BA178M05FP-E2, BA7805FP-E2, or BA17805FP-E2, which all support 25V maximum input. The original LP2950CDT-5.0/NOPB supports 30V input and remains the optimal choice for high-voltage applications.

Q: Do all substitute parts include protection features?

A: Protection features vary. BA05CC0FP-E2 includes Over Current, Over Temperature, and Over Voltage protection. BA7805FP-E2 includes Over Current and Over Temperature protection. BA178M05FP-E2, BA17805FP-E2, and LD29150DT50R do not specify protection features in the provided data. Verify protection requirements for your application design.