BD3531F-FE2 Equivalent & Substitute Parts

Part Overview

The BD3531F-FE2 is a DDR bus termination voltage regulator IC manufactured by Rohm Semiconductor, designed for power management applications requiring single-output voltage regulation. This device operates with input voltage range of 4.5V to 5.5V and provides adjustable output voltage, making it suitable for DDR bus termination and converter applications.

The BD3531F-FE2 carries a Last Time Buy product status, indicating that this part number will no longer be manufactured after existing inventory is depleted. Identifying qualified substitute components ensures design continuity and supply chain reliability for applications currently utilizing this regulator.

Substiute Parts

BD3531F-FE2

Rohm SemiconductorIn Stock: 5451BD3531F-FE2 Datasheet

Current PartRFQ

BD3539NUX-BZTR

Rohm SemiconductorIn Stock: 1148BD3539NUX-BZTR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BD3531F-FE2 is determined by the following critical parameters:

• Functional Category: DDR bus termination voltage regulator with single output
• Input Voltage Range: 4.5V to 5.5V compatibility
• Output Configuration: Single adjustable output
• Package Type: 8-SOIC surface mount package
• Regulatory Compliance: RoHS3 compliance and REACH status alignment
• Thermal Operating Range: -10°C to 100°C minimum requirement

The BD3539NUX-BZTR qualifies as a manufacturer-recommended substitute based on equivalent functional classification within the Rohm Semiconductor DDR bus termination regulator product line.

Parameter Comparison

Engineering Selection Recommendations

The BD3539NUX-BZTR is designated as the manufacturer-recommended substitute for the BD3531F-FE2. Both components share identical electrical specifications for input voltage range, output configuration, and package form factor. The BD3539NUX-BZTR maintains active product status with Rohm Semiconductor, ensuring continued availability and manufacturing support.

Both parts maintain ROHS3 compliance and equivalent regulatory standing, supporting seamless integration into existing designs. The transition from BD3531F-FE2 to BD3539NUX-BZTR does not require circuit redesign when electrical and thermal requirements remain within specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the BD3539NUX-BZTR directly replace the BD3531F-FE2 in existing PCB designs?

A: Yes. Both components utilize identical 8-SOIC package geometry and pin configuration. No PCB layout modifications are required for mechanical or electrical compatibility.

Q: Are there differences in input voltage specifications between these parts?

A: No. Both the BD3531F-FE2 and BD3539NUX-BZTR operate within the 4.5V to 5.5V input voltage range and provide adjustable single output voltage regulation.

Q: What is the significance of the BD3531F-FE2 Last Time Buy status?

A: Last Time Buy designation indicates that Rohm Semiconductor will discontinue manufacturing this part number. Existing inventory will be depleted without replenishment. Transitioning to the BD3539NUX-BZTR ensures long-term supply chain continuity.

Q: Do both parts meet the same regulatory compliance requirements?

A: Yes. Both components are ROHS3 compliant and maintain equivalent REACH status, satisfying identical regulatory requirements for power management applications.

Q: Are there packaging format differences between the main part and substitute?

A: Both parts are supplied in Tape & Reel format with 8-SOIC package specification. No packaging conversion is necessary for manufacturing or assembly processes.