BA03FP-E2 Equivalent & Substitute Parts

Part Overview

The BA03FP-E2 is a linear voltage regulator IC manufactured by Rohm Semiconductor, classified as a Power Management (PMIC) component. It delivers a fixed 3V positive output at 1A maximum current in a TO-252-3 surface mount package. The device is currently in active production status with 2254 units in stock.

Substitute parts are identified when equivalent electrical performance can be achieved within the allowed parameter ranges for this product category. Substitution becomes necessary due to supply constraints, inventory availability, or specific packaging requirements while maintaining functional compatibility in the target application.

Substiute Parts

BA03FP-E2

Rohm SemiconductorIn Stock: 2354BA03FP-E2 Datasheet

Current PartRFQ

LP2950CDT-3.0/NOPB

Texas InstrumentsIn Stock: 1562LP2950CDT-3.0/NOPB Datasheet

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LP2950CDTX-3.0/NOPB

Texas InstrumentsIn Stock: 1198LP2950CDTX-3.0/NOPB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BA03FP-E2 are qualified based on the following electrical and mechanical criteria:

Fixed Output Voltage: All substitutes must maintain 3V fixed output to ensure direct functional replacement without circuit modification.

Package Compatibility: All substitutes use TO-252-3 (DPAK with 2 Leads + Tab, SC-63) surface mount packaging, ensuring mechanical and thermal compatibility with existing PCB layouts.

Output Current Rating: Substitutes with lower maximum output current (100mA versus 1A) are acceptable when the application circuit operates within the lower current specification. The BA03FP-E2 specification of 1A represents the upper limit; circuits designed for lower current draw remain compatible with lower-rated alternatives.

Input Voltage Range: Substitutes with higher maximum input voltage ratings (30V versus 25V) provide expanded operating margin and remain compatible with circuits designed for the BA03FP-E2.

Protection Features: Substitutes must include minimum Over Current and Over Temperature protection. Additional protection features (Over Voltage, Short Circuit) represent enhanced capability and do not prevent substitution.

Operating Temperature Range: Substitutes with extended temperature ranges (-40°C ~ 125°C versus -40°C ~ 85°C) provide broader environmental compatibility.

Regulatory Compliance: All substitutes maintain ROHS3 compliance and REACH unaffected status, matching the primary part's regulatory standing.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (BA03FP-E2): Use when 1A output current capacity is required and the application operates within the -40°C ~ 85°C temperature range. Active production status and unlimited MSL rating provide optimal supply reliability and storage flexibility.

Substitute Selection (LP2950CDTX-3.0/NOPB): Use when output current requirements do not exceed 100mA and Tape & Reel packaging is specified. Extended operating temperature range (-40°C ~ 125°C) and Short Circuit protection provide enhanced robustness. ROHS3 compliance and REACH unaffected status maintain regulatory alignment with the primary part.

Substitute Selection (LP2950CDT-3.0/NOPB): Use when output current requirements do not exceed 100mA and Tube packaging is acceptable. Extended operating temperature range and ROHS3 compliance support equivalent regulatory requirements. MSL rating of 2 (1 Year) requires standard moisture control during storage and handling.

All substitutes maintain identical 3V fixed output voltage and TO-252-3 package geometry, ensuring direct PCB compatibility without layout modification.

Frequently Asked Questions (FAQ)

Q: Can LP2950CDT-3.0/NOPB replace BA03FP-E2 in all applications?

A: LP2950CDT-3.0/NOPB is a functional substitute only when the application circuit draws maximum 100mA output current. The BA03FP-E2 is rated for 1A; circuits requiring higher current must use the primary part or equivalent 1A-rated alternatives.

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

A: Both parts are electrically identical with 3V fixed output and 100mA maximum current. The primary difference is packaging: LP2950CDT-3.0/NOPB is supplied in Tube format, while LP2950CDTX-3.0/NOPB is supplied in Tape & Reel (TR) format. LP2950CDTX-3.0/NOPB includes Short Circuit protection as an additional feature.

Q: Are the TO-252-3 packages mechanically interchangeable?

A: Yes. All three parts use identical TO-252-3 (DPAK with 2 Leads + Tab, SC-63) surface mount packages. PCB footprints and thermal characteristics are equivalent, allowing direct physical substitution without layout changes.

Q: Do the substitute parts meet the same regulatory requirements?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of the BA03FP-E2. MSL ratings differ (BA03FP-E2 is MSL 1; substitutes are MSL 2), requiring standard moisture control for the substitute parts during storage.

Q: What is the impact of lower quiescent current in the substitute parts?

A: The LP2950 series exhibits significantly lower quiescent current (120 µA versus 2.5 mA). This represents improved power efficiency in standby or low-load conditions. Applications sensitive to standby power consumption benefit from this characteristic.

Q: Can I use LP2950CDTX-3.0/NOPB in applications requiring -40°C ~ 85°C operation?

A: Yes. LP2950CDTX-3.0/NOPB is rated for -40°C ~ 125°C, which encompasses the -40°C ~ 85°C requirement. The extended temperature range provides margin beyond the application specification.