TPS54561DPRR Equivalent & Substitute Parts

Part Overview

The TPS54561DPRR is a buck switching regulator IC manufactured by Texas Instruments, designed for step-down voltage conversion applications. This positive adjustable output regulator delivers 5A continuous current with an input voltage range of 4.5V to 60V and adjustable output from 0.8V to 59V. The device operates at switching frequencies between 100kHz and 2.5MHz and is housed in a 10-WDFN exposed pad package suitable for surface mount applications. The TPS54561DPRR maintains active product status and is ROHS3 compliant with MSL rating of 2 (1 Year). Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be achieved within the allowed parameter specifications for this buck regulator category.

Substiute Parts

TPS54561DPRR

Texas InstrumentsIn Stock: 17475TPS54561DPRR Datasheet

Current PartRFQ

BD9G341AEFJ-E2

Rohm SemiconductorIn Stock: 1000115BD9G341AEFJ-E2 Datasheet

MFR RecommendedRFQ

RT6365GQW

Richtek USA Inc.In Stock: 9357RT6365GQW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPS54561DPRR are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Function: Step-down buck topology with positive adjustable output
• Output current capability: Minimum 5A (or equivalent performance within application constraints)
• Input voltage range: Minimum 4.5V to 60V compatibility
• Output voltage adjustability: Minimum 0.8V to 59V range
• Switching frequency: 100kHz to 2.5MHz operation
• Package compatibility: Surface mount with exposed pad thermal management
• Compliance: ROHS3 compliant, active product status

Substitute Classification:

Group 1 - Direct Electrical Equivalent (RT6365GQW): Identical electrical specifications including 5A output current, 0.8V minimum output voltage, 4V to 60V input range, and 100kHz to 2.5MHz switching frequency. Package is 10-WDFN exposed pad, matching the main part. Operating temperature range extends to -40°C to 150°C (TJ). This substitute provides direct functional replacement with equivalent thermal and electrical performance.

Group 2 - Reduced Current Capability (BD9G341AEFJ-E2): Delivers 3A output current with adjustable output from 1V to 76V. Input voltage range is 12V to 76V, which overlaps the main part's operating window but with higher minimum input voltage. Switching frequency range is 50kHz to 750kHz. Package is 8-SOIC (0.154", 3.90mm Width) exposed pad, representing a different form factor. This substitute is applicable only in applications where 3A output current is sufficient and input voltage remains above 12V.

Parameter Comparison

Engineering Selection Recommendations

RT6365GQW Selection Criteria: The RT6365GQW is the primary substitute for the TPS54561DPRR. Both devices share identical electrical specifications: 5A output current, 0.8V minimum output voltage, 100kHz to 2.5MHz switching frequency, and matching 10-WDFN exposed pad package. Input voltage range compatibility is equivalent (4V vs. 4.5V minimum). Operating temperature range is identical at -40°C to 150°C (TJ). Both parts maintain ROHS3 compliance and active product status. PCB layout and thermal management design require no modification. This substitute provides direct functional replacement without design changes.

BD9G341AEFJ-E2 Selection Criteria: The BD9G341AEFJ-E2 is applicable only in applications where output current requirements do not exceed 3A and input voltage remains above 12V. The higher minimum input voltage (12V vs. 4.5V) restricts use in low-voltage input applications. The 8-SOIC package differs from the 10-WDFN form factor, requiring PCB layout redesign and thermal management reassessment. Operating temperature maximum is limited to 85°C (TA), reducing thermal headroom compared to the main part's 150°C (TJ) rating. Switching frequency range (50kHz to 750kHz) is narrower than the main part. This substitute is suitable only for applications with reduced current demands and higher minimum input voltage specifications. Both parts maintain ROHS3 compliance and active product status.

Frequently Asked Questions (FAQ)

Q: Can the RT6365GQW directly replace the TPS54561DPRR without PCB modifications? A: Yes. The RT6365GQW shares identical electrical specifications and the same 10-WDFN exposed pad package. No PCB layout or thermal design changes are required for direct substitution.

Q: What are the key differences between the TPS54561DPRR and BD9G341AEFJ-E2? A: The BD9G341AEFJ-E2 has three significant differences: (1) reduced output current of 3A versus 5A, (2) higher minimum input voltage of 12V versus 4.5V, and (3) different package form factor (8-SOIC versus 10-WDFN). These differences require application-level evaluation before substitution.

Q: Is the BD9G341AEFJ-E2 suitable for applications requiring 5A output current? A: No. The BD9G341AEFJ-E2 is rated for maximum 3A output current. Applications requiring 5A continuous current must use the TPS54561DPRR or RT6365GQW.

Q: What is the minimum input voltage requirement for each part? A: TPS54561DPRR: 4.5V minimum. RT6365GQW: 4V minimum. BD9G341AEFJ-E2: 12V minimum. Applications with input voltages below 12V cannot use the BD9G341AEFJ-E2.

Q: Are all three parts ROHS3 compliant? A: Yes. The TPS54561DPRR, RT6365GQW, and BD9G341AEFJ-E2 are all ROHS3 compliant with active product status.

Q: What is the operating temperature range difference between the main part and substitutes? A: TPS54561DPRR and RT6365GQW both operate from -40°C to 150°C (TJ). The BD9G341AEFJ-E2 operates from -40°C to 85°C (TA), providing 65°C less maximum temperature headroom.

Q: Can the RT6365GQW be used in applications originally designed for the TPS54561DPRR? A: Yes. The RT6365GQW provides equivalent electrical performance and identical package compatibility, making it suitable for direct substitution in all applications designed for the TPS54561DPRR.

Q: What packaging formats are available for these parts? A: TPS54561DPRR: Cut Tape (CT) and Digi-Reel. RT6365GQW: Tape & Reel (TR). BD9G341AEFJ-E2: Cut Tape (CT) and Digi-Reel. Packaging format selection depends on production volume and assembly requirements.