BD750L2FP2-CE2 Equivalent & Substitute Parts

Part Overview

The BD750L2FP2-CE2 is a linear voltage regulator IC manufactured by Rohm Semiconductor, designed to deliver a fixed 5V output at 200mA in a TO-263-3F surface mount package. This device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing production support and design continuity. The part operates across automotive temperature ranges (-40°C to 125°C) and carries AEC-Q100 qualification, indicating suitability for automotive applications requiring reliable voltage regulation with thermal and overcurrent protection.

Substiute Parts

BD750L2FP2-CE2

Rohm SemiconductorIn Stock: 1087BD750L2FP2-CE2 Datasheet

Current PartRFQ

NCV8675DT50RKG

onsemiIn Stock: 6374NCV8675DT50RKG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BD750L2FP2-CE2 is determined by the following critical parameters:

Output Voltage Compatibility: The substitute must provide a fixed 5V output to maintain circuit voltage requirements.

Output Current Capacity: The substitute must deliver at least 200mA to support the original design's power delivery specifications. Higher current ratings are acceptable as they provide design margin.

Input Voltage Range: The substitute must accept input voltages up to 45V maximum to ensure compatibility with the power supply architecture.

Voltage Dropout Characteristics: The substitute's dropout voltage must be compatible with the system's minimum input voltage margin requirements.

Operating Temperature Range: The substitute must operate across the full -40°C to 125°C range to maintain automotive reliability standards.

Package Compatibility: Physical package dimensions and pin configuration must allow direct or near-direct board-level substitution.

Automotive Qualification: AEC-Q100 certification is required for automotive applications to ensure reliability and traceability standards.

The NCV8675DT50RKG meets these substitution criteria with enhanced specifications in several areas, including higher output current capacity (350mA vs. 200mA), improved dropout voltage (0.6V vs. 0.7V), and extended operating temperature range (-40°C to 150°C).

Parameter Comparison

Engineering Selection Recommendations

The NCV8675DT50RKG is a direct functional substitute for the obsolete BD750L2FP2-CE2 based on the following engineering criteria:

Voltage and Current Specifications: Both devices deliver fixed 5V output with compatible input voltage ranges (45V maximum). The NCV8675DT50RKG provides 350mA output current, exceeding the original 200mA requirement and providing design margin for current-limited applications.

Thermal and Reliability Performance: The NCV8675DT50RKG extends the operating temperature range to 150°C (versus 125°C), offering improved thermal headroom. Both devices carry AEC-Q100 automotive qualification, ensuring equivalent reliability standards for automotive applications.

Regulatory Compliance: Both parts are ROHS3 compliant and REACH unaffected, maintaining equivalent environmental and regulatory compliance profiles.

Product Availability: The NCV8675DT50RKG is in active production status with substantial inventory availability (6284 pcs), whereas the BD750L2FP2-CE2 is obsolete. This transition is necessary for long-term supply chain continuity.

Package Consideration: The substitute uses DPAK-5 (TO-252-5) packaging versus the original TO-263-3F. While both are surface mount packages with similar thermal characteristics, PCB layout modifications may be required to accommodate the different pin configuration (4 leads + tab versus 3 leads + tab).

Frequently Asked Questions (FAQ)

Q: Can the NCV8675DT50RKG directly replace the BD750L2FP2-CE2 without circuit modifications?

A: Functional replacement is possible because both devices deliver 5V fixed output with compatible input voltage specifications. However, the package transition from TO-263-3F to DPAK-5 requires PCB layout changes. The NCV8675DT50RKG includes an additional control pin (Reset function) that may require design consideration depending on circuit requirements.

Q: What are the key differences in protection features between these devices?

A: The BD750L2FP2-CE2 provides over current and thermal shutdown protection. The NCV8675DT50RKG provides over temperature, over voltage, reverse polarity, and short circuit protection, offering enhanced circuit protection capabilities.

Q: Is the higher quiescent current (45 µA vs. 15 µA) in the NCV8675DT50RKG a concern?

A: The quiescent current difference is 30 µA, which is negligible in most applications. This represents approximately 0.15mW additional standby power consumption at 5V, typically insignificant compared to the 1W+ power dissipation in active regulation.

Q: Why does the substitute have a DPAK-5 package instead of TO-263-3F?

A: Package selection reflects current manufacturing standards and thermal performance optimization. DPAK-5 provides equivalent thermal characteristics with improved integration of additional protection features. PCB redesign is required to accommodate the different pin layout.

Q: Are both devices suitable for automotive applications?

A: Yes. Both the BD750L2FP2-CE2 and NCV8675DT50RKG carry AEC-Q100 qualification, confirming suitability for automotive temperature and reliability requirements.

Q: What is the impact of the improved PSRR (70dB vs. 60dB) in the substitute?

A: The 10dB improvement in Power Supply Rejection Ratio indicates better noise filtering from the input supply. This provides enhanced output voltage stability and reduced ripple, beneficial for noise-sensitive analog circuits.