RT9715EGF Equivalent & Substitute Parts

Part Overview

The RT9715EGF is a Power Switch/Driver IC manufactured by Richtek USA Inc., designed for 1:1 N-Channel high-side switching applications with 1.1A maximum output current. This component operates across a 2.7V to 5.5V load voltage range and is commonly used in USB switching and power management circuits. The RT9715EGF is currently classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain compatibility across electrical specifications, package form factor, and fault protection capabilities.

Key Parameters

Parameter	RT9715EGF
Manufacturer	Richtek USA Inc.
Category	Power Management (PMIC)
Switch Type	USB Switch
Output Configuration	High Side, N-Channel, 1:1
Current - Output (Max)	1.1A
Voltage - Load	2.7V ~ 5.5V
Rds On (Typ)	90mOhm
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Fault Protection	Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO
Features	Load Discharge, Status Flag
Operating Temperature	-40°C ~ 100°C (TJ)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the RT9715EGF is determined by the following critical parameters:

Electrical Compatibility Requirements:

Output Configuration: High Side, N-Channel, 1:1 ratio
Voltage - Load: 2.7V ~ 5.5V (minimum requirement)
Current - Output: Equal to or greater than 1.1A
Rds On: Lower or equivalent resistance
Fault Protection: Must include Current Limiting (Fixed), Over Temperature, and UVLO

Package Compatibility:

8-TSSOP or 8-MSOP form factor (0.118", 3.00mm Width)
Surface Mount technology

Feature Compatibility:

Load Discharge and Status Flag capabilities required for direct replacement

Substitute parts are grouped into two categories: direct replacements (matching all electrical and feature specifications) and functional equivalents (meeting core electrical requirements with active product status).

Parameter Comparison

Part Number	Manufacturer	Current (Max)	Voltage - Load	Rds On (Typ)	Package	Load Discharge	Status Flag	Fault Protection	Product Status	Operating Temp
RT9715EGF	Richtek USA Inc.	1.1A	2.7V ~ 5.5V	90mOhm	8-MSOP	Yes	Yes	CL(F), OT, RC, UVLO	Obsolete	-40°C ~ 100°C
BD82028FVJ-GE2	Rohm Semiconductor	1A	4.5V ~ 5.5V	72mOhm	8-TSSOP-BJ	Yes	Yes	CL(F), OT, RC, UVLO	Active	-40°C ~ 85°C
BD82030FVJ-GE2	Rohm Semiconductor	1.5A	4.5V ~ 5.5V	72mOhm	8-TSSOP-BJ	Yes	Yes	CL(F), OT, RC, UVLO	Active	-40°C ~ 85°C
BD82031FVJ-GE2	Rohm Semiconductor	1.5A	4.5V ~ 5.5V	72mOhm	8-TSSOP-BJ	Yes	Yes	CL(F), OT, RC, UVLO	Active	-40°C ~ 85°C
BD82032FVJ-GE2	Rohm Semiconductor	2A	4.5V ~ 5.5V	72mOhm	8-TSSOP-BJ	Yes	Yes	CL(F), OT, RC, UVLO	Active	-40°C ~ 85°C
BD82034FVJ-GE2	Rohm Semiconductor	2.5A	4.5V ~ 5.5V	72mOhm	8-TSSOP-BJ	Yes	Yes	CL(F), OT, RC, UVLO	Active	-40°C ~ 85°C
MIC2544A-1YMM-TR	Microchip Technology	1.5A	2.7V ~ 5.5V	80mOhm	8-MSOP	No	Yes	CL(A), OT	Active	-40°C ~ 85°C
STMPS2151TTR	STMicroelectronics	500mA	2.7V ~ 5.5V	110mOhm	8-MSOP	No	No	CL(F), OT, RC, UVLO	Active	-40°C ~ 125°C

Legend: CL(F) = Current Limiting (Fixed), CL(A) = Current Limiting (Adjustable), OT = Over Temperature, RC = Reverse Current, UVLO = Under Voltage Lock Out

Engineering Selection Recommendations

Direct Replacement (Preferred): BD82028FVJ-GE2, BD82030FVJ-GE2, BD82031FVJ-GE2, BD82032FVJ-GE2, and BD82034FVJ-GE2 from Rohm Semiconductor are active products that maintain all critical electrical specifications, fault protection features, and load discharge/status flag capabilities. These parts are ROHS3 compliant with MSL 1 rating (unlimited moisture exposure). The Rohm BD82 series provides superior Rds On performance (72mOhm vs. 90mOhm) and higher current ratings, making them suitable for direct substitution in applications requiring 1.1A or less.

Functional Equivalent (Limited Compatibility): MIC2544A-1YMM-TR from Microchip Technology maintains the 2.7V ~ 5.5V load voltage range and 8-MSOP package form factor. However, this part lacks load discharge functionality and uses adjustable current limiting instead of fixed current limiting. This option is suitable only for applications where load discharge is not required.

Not Recommended: STMPS2151TTR from STMicroelectronics has insufficient current rating (500mA vs. 1.1A required) and lacks load discharge capability and status flag features. This part does not meet the functional requirements of the RT9715EGF.

All recommended substitutes are ROHS3 compliant and carry REACH Unaffected status, maintaining regulatory compliance with the original part.

Frequently Asked Questions (FAQ)

Q: Can BD82028FVJ-GE2 directly replace RT9715EGF? A: BD82028FVJ-GE2 is a direct replacement for applications operating within the 4.5V ~ 5.5V load voltage range. Both parts feature identical fault protection (Current Limiting Fixed, Over Temperature, Reverse Current, UVLO), load discharge, and status flag capabilities. The 8-TSSOP-BJ package is compatible with 8-MSOP footprints. However, if your application requires operation below 4.5V load voltage, this part is not suitable.

Q: What is the difference between BD82030FVJ-GE2 and BD82032FVJ-GE2? A: Both parts are Rohm Semiconductor products with identical electrical characteristics (72mOhm Rds On, 4.5V ~ 5.5V load voltage, full fault protection suite). The primary difference is maximum output current: BD82030FVJ-GE2 is rated for 1.5A, while BD82032FVJ-GE2 is rated for 2A. Select based on your application's current requirements.

Q: Why does MIC2544A-1YMM-TR lack load discharge functionality? A: Load discharge is an optional feature in power switch design. MIC2544A-1YMM-TR omits this feature to reduce die size and cost. If your circuit design depends on load discharge for safe shutdown or power sequencing, this part is not compatible.

Q: Are all substitute parts available in the same package? A: Rohm BD82 series parts use 8-TSSOP-BJ packaging, which is mechanically and electrically compatible with the 8-MSOP footprint of RT9715EGF. Microchip MIC2544A-1YMM-TR and STMicroelectronics STMPS2151TTR use 8-MSOP packaging, identical to the original part. All parts are surface mount with 0.118" (3.00mm) width.

Q: What is the operating temperature range difference between RT9715EGF and substitute parts? A: RT9715EGF operates to 100°C junction temperature. Most Rohm and Microchip substitutes operate to 85°C ambient temperature. STMicroelectronics STMPS2151TTR extends to 125°C junction temperature. Verify your thermal design requirements before selection.

Q: Can I use a higher-current-rated part as a substitute? A: Yes. BD82034FVJ-GE2 (2.5A) can replace RT9715EGF (1.1A) in applications requiring 1.1A or less. Higher current rating provides design margin and does not negatively impact circuit operation at lower currents. Ensure PCB thermal design accommodates the part's power dissipation characteristics.

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