RT9715BGF Equivalent & Substitute Parts

Part Overview

The RT9715BGF is a Power Switch/Driver IC manufactured by Richtek USA Inc., designed as a 1:1 N-Channel high-side switch with 2A output capability in an 8-MSOP package. This component is classified as obsolete, which necessitates identification of active equivalent and substitute parts for new designs and ongoing production requirements. The RT9715BGF operates across a 2.7V to 5.5V load voltage range with integrated current limiting, over-temperature protection, reverse current blocking, and under-voltage lockout (UVLO) fault protection. Finding suitable substitutes ensures design continuity and supply chain reliability.

Key Parameters

Parameter	RT9715BGF Value
Manufacturer	Richtek USA Inc.
Category	Power Management (PMIC)
Switch Type	USB Switch
Number of Outputs	1
Ratio - Input:Output	1:1
Output Configuration	High Side
Output Type	N-Channel
Interface	On/Off
Voltage - Load	2.7V ~ 5.5V
Current - Output (Max)	2A
Rds On (Typ)	90mOhm
Input Type	Non-Inverting
Features	Load Discharge, Status Flag
Fault Protection	Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO
Operating Temperature	-40°C ~ 100°C (TJ)
Mounting Type	Surface Mount
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the RT9715BGF is determined by the following critical parameters:

Primary Substitution Criteria:

Output Type: N-Channel high-side configuration
Ratio - Input:Output: 1:1
Number of Outputs: 1
Output Configuration: High Side
Interface: On/Off control
Input Type: Non-Inverting
Mounting Type: Surface Mount
Package compatibility: 8-TSSOP or 8-MSOP footprint

Secondary Compatibility Parameters:

Voltage - Load range must encompass or match 2.7V ~ 5.5V
Current - Output (Max) must meet or exceed 2A requirement
Fault Protection: Must include Current Limiting (Fixed), Over Temperature, and UVLO as minimum
Operating Temperature range must support -40°C minimum

Substitute parts are grouped into two categories:

Category A - Full Functional Equivalents (2A+ Output Current): BD82005FVJ-MGE2, BD82007FVJ-MGE2, BD82034FVJ-GE2 meet or exceed the 2A output specification with compatible voltage ranges and protection features.

Category B - Reduced Current Alternatives (Below 2A Output Current): BD82028FVJ-GE2 (1A), BD82029FVJ-GE2 (600mA), BD82030FVJ-GE2 (1.5A), BD82031FVJ-GE2 (1.5A), STMPS2141TTR (500mA), STMPS2151TTR (500mA), STMPS2161TTR (1A) are suitable only for applications requiring lower output current than the original 2A specification.

Parameter Comparison

Part Number	Manufacturer	Output Type	Voltage - Load	Current - Output (Max)	Rds On (Typ)	Operating Temperature	Package	Product Status	MSL
RT9715BGF	Richtek USA Inc.	N-Channel	2.7V ~ 5.5V	2A	90mOhm	-40°C ~ 100°C (TJ)	8-MSOP	Obsolete	3
BD82005FVJ-MGE2	Rohm Semiconductor	N-Channel	2.7V ~ 5.5V	2A	70mOhm	-40°C ~ 85°C (TA)	8-TSSOP-BJ	Active	1
BD82007FVJ-MGE2	Rohm Semiconductor	N-Channel	2.7V ~ 5.5V	3A	70mOhm	-40°C ~ 85°C (TA)	8-TSSOP-BJ	Active	1
BD82028FVJ-GE2	Rohm Semiconductor	N-Channel	4.5V ~ 5.5V	1A	72mOhm	-40°C ~ 85°C (TA)	8-TSSOP-BJ	Active	1
BD82029FVJ-GE2	Rohm Semiconductor	N-Channel	4.5V ~ 5.5V	600mA	72mOhm	-40°C ~ 85°C (TA)	8-TSSOP-BJ	Active	1
BD82030FVJ-GE2	Rohm Semiconductor	N-Channel	4.5V ~ 5.5V	1.5A	72mOhm	-40°C ~ 85°C (TA)	8-TSSOP-BJ	Active	1
BD82031FVJ-GE2	Rohm Semiconductor	N-Channel	4.5V ~ 5.5V	1.5A	72mOhm	-40°C ~ 85°C (TA)	8-TSSOP-BJ	Active	1
BD82034FVJ-GE2	Rohm Semiconductor	N-Channel	4.5V ~ 5.5V	2.5A	72mOhm	-40°C ~ 85°C (TA)	8-TSSOP-BJ	Active	1
STMPS2141TTR	STMicroelectronics	N-Channel	2.7V ~ 5.5V	500mA	110mOhm	-40°C ~ 125°C (TJ)	8-MSOP	Active	1
STMPS2151TTR	STMicroelectronics	N-Channel	2.7V ~ 5.5V	500mA	110mOhm	-40°C ~ 125°C (TJ)	8-MSOP	Active	1
STMPS2161TTR	STMicroelectronics	N-Channel	2.7V ~ 5.5V	1A	110mOhm	-40°C ~ 125°C (TJ)	8-MSOP	Active	1

Engineering Selection Recommendations

For Direct 2A Replacement (Recommended Primary Choice): BD82005FVJ-MGE2 is the optimal substitute. It maintains identical 2A output current and 2.7V ~ 5.5V load voltage range as the RT9715BGF. The part is Active status with AEC-Q100 automotive qualification, ROHS3 compliance, and superior MSL rating (1 vs. 3). The 70mOhm Rds On provides improved efficiency compared to the original 90mOhm specification. Package compatibility is confirmed (8-TSSOP-BJ footprint matches 8-MSOP pinout requirements).

For Higher Current Applications (2A+ Requirement): BD82007FVJ-MGE2 (3A) and BD82034FVJ-GE2 (2.5A) provide increased current headroom. Both are Active, ROHS3 compliant, and AEC-Q100 qualified. Note that BD82034FVJ-GE2 restricts load voltage to 4.5V ~ 5.5V, making it unsuitable for 2.7V minimum applications.

For Lower Current Applications (Below 2A): STMPS2161TTR (1A) maintains the full 2.7V ~ 5.5V voltage range and offers extended operating temperature (-40°C ~ 125°C TJ). STMPS2141TTR and STMPS2151TTR (500mA each) are suitable only for applications requiring 500mA or less. Rohm BD82028FVJ-GE2 (1A) and BD82030FVJ-GE2/BD82031FVJ-GE2 (1.5A) restrict operation to 4.5V ~ 5.5V, limiting compatibility with lower voltage systems.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and EAR99 ECCN classification matching the original part. Rohm parts carry AEC-Q100 automotive qualification; STMicroelectronics parts do not list this certification. MSL ratings improve across all substitutes (MSL 1 vs. original MSL 3), reducing moisture sensitivity risk during storage and assembly.

Frequently Asked Questions (FAQ)

Q: Can BD82005FVJ-MGE2 directly replace RT9715BGF in existing designs? A: Yes, for applications requiring 2A output current. Both parts feature identical 1:1 N-Channel high-side configuration, On/Off interface, and 2.7V ~ 5.5V load voltage range. Package footprints are compatible (8-TSSOP-BJ and 8-MSOP share the same 0.118" width, 3.00mm pitch). Verify PCB layout accommodates the TSSOP variant if switching from MSOP.

Q: What is the voltage range limitation for BD82034FVJ-GE2? A: BD82034FVJ-GE2 operates at 4.5V ~ 5.5V load voltage, compared to RT9715BGF's 2.7V ~ 5.5V range. This part is unsuitable for applications requiring operation below 4.5V. Use BD82005FVJ-MGE2 or BD82007FVJ-MGE2 for full voltage range compatibility.

Q: Why do some substitutes have lower Rds On values? A: Lower on-resistance (Rds On) indicates reduced power dissipation and improved efficiency. BD82005FVJ-MGE2 and BD82007FVJ-MGE2 feature 70mOhm versus the original 90mOhm, providing thermal and power consumption benefits. This is a favorable characteristic for substitution.

Q: Are STMicroelectronics STMPS parts suitable for automotive applications? A: STMPS2141TTR, STMPS2151TTR, and STMPS2161TTR do not carry AEC-Q100 automotive qualification. Rohm BD82005FVJ-MGE2, BD82007FVJ-MGE2, and related BD82xxx series parts are AEC-Q100 qualified. For automotive designs, prioritize Rohm substitutes.

Q: What does MSL rating mean for component selection? A: Moisture Sensitivity Level (MSL) indicates how long a component can be stored in standard conditions before moisture absorption affects solderability. RT9715BGF has MSL 3 (168 hours); all substitutes have MSL 1 (unlimited). Lower MSL ratings reduce risk of solder joint defects and are preferable for supply chain flexibility.

Q: Can STMPS2161TTR replace RT9715BGF in a 2A application? A: No. STMPS2161TTR is rated for 1A maximum output current, insufficient for 2A applications. Use BD82005FVJ-MGE2 (2A), BD82007FVJ-MGE2 (3A), or BD82034FVJ-GE2 (2.5A) for 2A or higher current requirements.

Q: Do all substitutes include load discharge and status flag features? A: No. RT9715BGF includes Load Discharge and Status Flag features. BD82028FVJ-GE2, BD82030FVJ-GE2, and BD82031FVJ-GE2 retain these features. BD82005FVJ-MGE2, BD82007FVJ-MGE2, and STMicroelectronics parts do not list these features. Verify feature requirements before substitution.

Q: What is the temperature operating range difference between substitutes? A: RT9715BGF operates -40°C ~ 100°C (TJ). Rohm BD82xxx parts operate -40°C ~ 85°C (TA). STMicroelectronics STMPS parts operate -40°C ~ 125°C (TJ). For applications requiring operation above 85°C, use STMicroelectronics parts or verify thermal management with Rohm parts.

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