BD9528AMUV-E2 Equivalent & Substitute Parts

Part Overview

The BD9528AMUV-E2 is a quad-output PMIC from Rohm Semiconductor's H³® series, integrating two synchronous step-down (buck) regulators and two linear (LDO) regulators in a 32-pin VFQFN package with exposed pad. This device operates across a 5.5V to 28V supply range with switching frequencies between 200kHz and 500kHz, designed for multi-rail power distribution applications requiring mixed regulation topologies.

The BD9528AMUV-E2 carries a "Not For New Designs" status, indicating end-of-life positioning. Identifying functionally equivalent alternatives is necessary for ongoing production support, design refreshes, and inventory management where the original part becomes unavailable.

Substiute Parts

BD9528AMUV-E2

Rohm SemiconductorIn Stock: 1784BD9528AMUV-E2 Datasheet

Current PartRFQ

BD95602MUV-LBE2

Rohm SemiconductorIn Stock: 1074BD95602MUV-LBE2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BD9528AMUV-E2 is determined by strict alignment across the following critical parameters:

Topology Match: Both the main part and substitute must provide identical output configuration: two synchronous buck regulators and two linear LDO regulators (4 total outputs).

Package Compatibility: The 32-VFQFN Exposed Pad package is mandatory. Pin-to-pin compatibility and thermal characteristics depend on this exact package specification.

Supply Voltage Range: The substitute must support the full 5.5V to 28V input range to ensure operation across all intended application scenarios.

Switching Frequency Overlap: The substitute's switching frequency range must encompass or overlap with the original 200kHz to 500kHz specification to maintain EMI and efficiency characteristics.

Regulatory Compliance: RoHS3 compliance and MSL rating must be maintained for manufacturing and environmental requirements.

The BD95602MUV-LBE2 qualifies as a direct substitute based on these criteria, with noted differences in product status and specific output current ratings.

Parameter Comparison

Engineering Selection Recommendations

The BD95602MUV-LBE2 is the qualified substitute for the BD9528AMUV-E2 based on functional topology alignment and package compatibility. Key selection considerations:

Product Status Advantage: The BD95602MUV-LBE2 carries "Active" status, ensuring continued manufacturing support, availability, and long-term supply chain stability compared to the "Not For New Designs" classification of the original part.

Compliance Alignment: Both parts maintain ROHS3 compliance and MSL Level 1 rating, satisfying manufacturing and environmental requirements without additional qualification.

Output Current Derating: The BD95602MUV-LBE2 reduces Output 3 current from 100mA to 50mA. Applications requiring the full 100mA on this output must verify alternative power distribution or confirm that 50mA meets system requirements.

Temperature Range Reduction: The substitute operates to 85°C maximum versus 100°C for the original. Applications requiring operation above 85°C must retain the BD9528AMUV-E2 or identify alternative solutions.

Switching Frequency Range: The BD95602MUV-LBE2 extends the lower frequency limit to 150kHz (versus 200kHz minimum on the original), providing additional flexibility for EMI management in noise-sensitive applications.

Frequently Asked Questions (FAQ)

Q: Can the BD95602MUV-LBE2 directly replace the BD9528AMUV-E2 in existing designs?

A: Pin-to-pin and package compatibility is confirmed. However, verify that your application does not require Output 3 current exceeding 50mA or operating temperatures above 85°C. If either constraint applies, the original part must be retained.

Q: What is the significance of the "Not For New Designs" status on the BD9528AMUV-E2?

A: This designation indicates the part is in end-of-life phase. Rohm Semiconductor no longer recommends this part for new product development. The BD95602MUV-LBE2, with "Active" status, is the recommended path forward for new designs and ongoing production.

Q: Are there differences in the adjustable output voltage ranges between these parts?

A: Yes. The BD9528AMUV-E2 specifies Outputs 1 and 2 as "Adj to 5.5V" (implying a lower limit not explicitly stated). The BD95602MUV-LBE2 explicitly defines Outputs 1 and 2 as "1V ~ 5.5V," providing a defined minimum voltage specification. Confirm your design does not require output voltages below 1V on these rails.

Q: Does the switching frequency difference affect circuit design?

A: The BD95602MUV-LBE2 minimum frequency of 150kHz (versus 200kHz) allows operation at lower switching rates. This may reduce EMI in certain frequency bands but requires verification that output filter designs remain adequate. Existing filter component selections should be re-evaluated for the lower frequency capability.

Q: Are both parts available in the same packaging options?

A: Both parts are supplied in 32-VFQFN Exposed Pad packages. Tape & Reel (TR) packaging is available for both, ensuring compatibility with automated assembly processes.

Q: What compliance certifications apply to both parts?

A: Both the BD9528AMUV-E2 and BD95602MUV-LBE2 are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8542.39.0001. MSL Level 1 (Unlimited) applies to both, requiring standard moisture control during storage and handling.