BA08FP-E2 Linear Voltage Regulator: Equivalent & Substitute Parts

Part Overview

The BA08FP-E2 is a linear voltage regulator IC manufactured by Rohm Semiconductor, designed to provide a fixed 8V positive output at 1A maximum current in a TO-252-3 surface mount package. This device is classified as Not For New Designs, indicating it has reached end-of-life status. Finding equivalent or substitute parts is necessary for ongoing production support, maintenance applications, and legacy system repairs where the original component is no longer readily available or where design flexibility permits alternative sources.

Substiute Parts

BA08FP-E2

Rohm SemiconductorIn Stock: 5143BA08FP-E2 Datasheet

Current PartRFQ

BA08FP-E2

Rohm SemiconductorIn Stock: 5143BA08FP-E2 Datasheet

Parametric EquivalentRFQ

TL750M08CKVURG3

Texas InstrumentsIn Stock: 1101TL750M08CKVURG3 Datasheet

SimilarRFQ

TL750M08QKVURQ1

Texas InstrumentsIn Stock: 2312TL750M08QKVURQ1 Datasheet

SimilarRFQ

UA78M08CKVURG3

Texas InstrumentsIn Stock: 2223UA78M08CKVURG3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BA08FP-E2 is determined by the following critical parameters that must remain constant or compatible:

• Fixed output voltage of 8V
• Surface mount TO-252-3 package compatibility
• Positive output configuration
• Single regulator output
• Maximum input voltage of 25V or greater
• Output current capability of 500mA or greater (minimum threshold for functional equivalence)
• Protection features including over current and over temperature protection
• RoHS3 compliance

The substitute parts identified below meet these core electrical and mechanical requirements. Variations in quiescent current, PSRR, dropout voltage, and operating temperature range are permitted within the scope of functional substitution, provided the application requirements do not demand the specific performance characteristics of the original part.

Parameter Comparison

Engineering Selection Recommendations

TL750M08QKVURQ1 (Texas Instruments) is the preferred substitute for new applications and ongoing production. This part maintains Active product status, offers extended operating temperature range (-40°C ~ 125°C), includes automotive-grade qualification (AEC-Q100), and provides 750mA output current. The TO-252-3 package is mechanically and electrically compatible with the BA08FP-E2.

TL750M08CKVURG3 (Texas Instruments) is functionally equivalent with Active product status and 750mA output capability. Operating temperature range is limited to 0°C ~ 125°C. This part is suitable for applications where the extended low-temperature performance of the QKV variant is not required.

UA78M08CKVURG3 (Texas Instruments) provides functional substitution with Last Time Buy status. Output current is limited to 500mA, and dropout voltage is elevated at 2V @ 350mA. This part is suitable only for applications where output current does not exceed 500mA and where the higher dropout voltage is acceptable. PSRR performance is superior at 80dB (120Hz).

All substitute parts are RoHS3 compliant and maintain the same fixed 8V output voltage and TO-252-3 package footprint as the original BA08FP-E2.

Frequently Asked Questions (FAQ)

Q: Can TL750M08CKVURG3 or TL750M08QKVURQ1 directly replace BA08FP-E2 in existing designs?

A: Yes, from an electrical and mechanical standpoint. Both parts provide 8V fixed output in the same TO-252-3 package. However, the TL750M08 series is rated for 750mA maximum output current, compared to 1A for the BA08FP-E2. Applications drawing more than 750mA will require design modification or selection of an alternative part with higher current rating.

Q: What is the difference between TL750M08CKVURG3 and TL750M08QKVURQ1?

A: Both parts are functionally identical in electrical performance and package. The primary differences are: TL750M08QKVURQ1 includes automotive-grade qualification (AEC-Q100) and operates over -40°C ~ 125°C, while TL750M08CKVURG3 operates over 0°C ~ 125°C. Select the QKV variant for automotive or extended low-temperature applications.

Q: Is UA78M08CKVURG3 a suitable substitute?

A: UA78M08CKVURG3 is functionally compatible but with limitations. Output current is restricted to 500mA, and dropout voltage is significantly higher at 2V @ 350mA compared to 0.5V @ 500mA for the BA08FP-E2. This part is suitable only for low-current applications (≤500mA) where higher dropout voltage is acceptable. The part is in Last Time Buy status.

Q: Are all substitute parts available in the same packaging format?

A: TL750M08CKVURG3 and TL750M08QKVURQ1 are supplied in Tape & Reel (TR) format, matching the BA08FP-E2. UA78M08CKVURG3 is supplied in Cut Tape (CT) format, which may require different handling in automated assembly processes.

Q: What is the impact of different operating temperature ranges?

A: The BA08FP-E2 operates from -40°C ~ 85°C. TL750M08QKVURQ1 extends this to -40°C ~ 125°C, providing wider temperature coverage. TL750M08CKVURG3 and UA78M08CKVURG3 operate from 0°C ~ 125°C, which may be insufficient for applications requiring operation below 0°C. Verify application temperature requirements before selection.

Q: Can I use these parts interchangeably in production?

A: Mechanical and electrical compatibility is confirmed for all listed substitutes within their specified current and temperature ratings. However, design validation and qualification testing are required before implementing any substitute in production. Verify that application current requirements do not exceed the substitute part's maximum output current rating.