BD9001F-E2 Equivalent & Substitute Parts

Part Overview

The BD9001F-E2 is a buck switching regulator IC manufactured by Rohm Semiconductor, designed for positive adjustable output applications. This active product operates as a step-down converter with a single adjustable output, delivering up to 2A of current across an input voltage range of 7V to 48V. The device is housed in an 8-SOIC package and is ROHS3 compliant with MSL Level 1 rating, indicating unlimited moisture sensitivity protection. Substitute parts are identified to provide alternative sourcing options when the primary component becomes unavailable or when design requirements necessitate different electrical performance characteristics within compatible parameter ranges.

Substiute Parts

BD9001F-E2

Rohm SemiconductorIn Stock: 19409BD9001F-E2 Datasheet

Current PartRFQ

RTQ2962GSP-QA

Richtek USA Inc.In Stock: 15716RTQ2962GSP-QA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BD9001F-E2 is determined by the following critical parameters:

Primary Substitution Criteria:

• Topology: Buck (step-down) switching regulator
• Output Configuration: Positive adjustable
• Number of Outputs: Single output
• Package Category: 8-SOIC surface mount (mechanical compatibility within PCB layout constraints)
• Synchronous Rectifier: Non-synchronous design
• Product Status: Active

Electrical Compatibility Range:

• Input voltage capability must encompass or exceed the 7V minimum requirement
• Output voltage adjustability must support the 1V minimum output specification
• Output current rating must meet or exceed 2A
• Operating temperature range must support the application's thermal requirements

The RTQ2962GSP-QA qualifies as a substitute based on matching topology, output configuration, single-output design, and surface-mount 8-SOIC package category. Both devices are active products with ROHS3 compliance and non-synchronous rectifier architecture.

Parameter Comparison

Engineering Selection Recommendations

Both the BD9001F-E2 and RTQ2962GSP-QA are active products with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement.

The RTQ2962GSP-QA provides enhanced electrical performance characteristics: higher input voltage maximum (60V vs. 48V), lower minimum output voltage (0.8V vs. 1V), increased output current capacity (2.5A vs. 2A), and extended operating temperature range (150°C junction temperature vs. 95°C ambient). These specifications position the RTQ2962GSP-QA as suitable for applications requiring greater thermal headroom or higher current delivery.

Package dimensions differ between the two devices. The BD9001F-E2 uses an 8-SOIC package measuring 0.173" width (4.40mm), while the RTQ2962GSP-QA uses a narrower 8-SOIC package measuring 0.154" width (3.90mm) with an exposed pad. PCB layout compatibility must be verified before substitution, as the dimensional difference may affect footprint placement and thermal management design.

The BD9001F-E2 features MSL Level 1 rating (unlimited moisture sensitivity protection), while the RTQ2962GSP-QA carries MSL Level 3 rating (168-hour protection). Storage and handling conditions must align with the respective moisture sensitivity levels during component procurement and assembly operations.

Frequently Asked Questions (FAQ)

Q: Can the RTQ2962GSP-QA directly replace the BD9001F-E2 in existing designs?

A: Direct replacement requires verification of PCB footprint compatibility. The RTQ2962GSP-QA uses a narrower 8-SOIC package (0.154" vs. 0.173" width) and includes an exposed pad, which may necessitate layout modifications. Electrical parameters are compatible within the specified ranges.

Q: What are the key electrical differences between these two regulators?

A: The RTQ2962GSP-QA supports lower minimum output voltage (0.8V vs. 1V), higher input voltage maximum (60V vs. 48V), greater output current (2.5A vs. 2A), and wider switching frequency range (100kHz to 2.5MHz vs. 50kHz to 300kHz). The BD9001F-E2 operates at lower ambient temperatures (95°C maximum).

Q: Are there moisture sensitivity considerations for component storage?

A: Yes. The BD9001F-E2 has MSL Level 1 rating (unlimited protection), while the RTQ2962GSP-QA has MSL Level 3 rating (168-hour protection). The RTQ2962GSP-QA requires more stringent moisture control during storage and handling to prevent solder joint degradation.

Q: Do both devices require the same external component values for equivalent output voltage settings?

A: External feedback resistor networks determine output voltage for both adjustable regulators. Identical resistor values will produce equivalent output voltages across both devices due to matching adjustable output topology.

Q: What is the significance of the exposed pad on the RTQ2962GSP-QA?

A: The exposed pad provides enhanced thermal dissipation by connecting to the ground plane, improving heat transfer during high-current operation. This feature supports the higher 2.5A output current rating compared to the BD9001F-E2.