RT9711AGF Equivalent & Substitute Parts

Part Overview

The RT9711AGF is an active N-Channel power switch manufactured by Richtek USA Inc., designed for USB switching applications. This 1:1 ratio high-side switch delivers 1.5A maximum output current in an 8-MSOP package and operates across a 2.5V to 5.5V load voltage range. The device includes integrated current limiting, over-temperature protection, reverse current blocking, and UVLO fault protection with status flag output. Product status is Active with ROHS3 compliance and MSL-3 moisture sensitivity rating.

Equivalent and substitute parts are identified based on matching core electrical and mechanical parameters: 1:1 input-output ratio, high-side N-Channel output configuration, on/off interface control, non-inverting input logic, and compatible 8-pin surface-mount packaging (8-MSOP or 8-TSSOP variants).

Key Parameters

Parameter	RT9711AGF Value
Manufacturer	Richtek USA Inc.
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	2.5V ~ 5.5V
Current - Output (Max)	1.5A
Rds On (Typ)	90mOhm
Input Type	Non-Inverting
Features	Status Flag
Fault Protection	Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO
Operating Temperature	-40°C ~ 125°C (TJ)
Mounting Type	Surface Mount
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following core parameters:

Mandatory Matching Criteria:

Ratio - Input:Output: 1:1
Output Configuration: High Side
Output Type: N-Channel
Interface: On/Off
Input Type: Non-Inverting
Mounting Type: Surface Mount
Package / Case: 8-TSSOP or 8-MSOP (0.118", 3.00mm Width)
RoHS Status: ROHS3 Compliant
Product Status: Active

Allowable Parameter Variations:

Voltage - Load: Minimum 2.5V acceptable; maximum 5.5V or higher acceptable
Current - Output (Max): 1.5A or higher acceptable
Rds On (Typ): Lower values acceptable (improved performance)
Operating Temperature: Range variations acceptable if minimum -40°C and maximum ≥85°C
Features: Additional features (Load Discharge) acceptable; Status Flag acceptable
Fault Protection: Superset of RT9711AGF protections acceptable
Manufacturer: Any qualified manufacturer acceptable
Packaging Format: Tape & Reel, Cut Tape, or Tube acceptable

Substitutes are grouped by current rating capability and voltage operating range to facilitate selection based on application requirements.

Parameter Comparison

Part Number	Manufacturer	Current (Max)	Voltage - Load	Rds On (Typ)	Operating Temp	Package	Features	Inventory
RT9711AGF	Richtek USA Inc.	1.5A	2.5V ~ 5.5V	90mOhm	-40°C ~ 125°C (TJ)	8-MSOP	Status Flag	3200 Pcs
BD82028FVJ-GE2	Rohm Semiconductor	1A	4.5V ~ 5.5V	72mOhm	-40°C ~ 85°C (TA)	8-TSSOP-BJ	Load Discharge, Status Flag	230200 Pcs
BD82030FVJ-GE2	Rohm Semiconductor	1.5A	4.5V ~ 5.5V	72mOhm	-40°C ~ 85°C (TA)	8-TSSOP-BJ	Load Discharge, Status Flag	60200 Pcs
BD82031FVJ-GE2	Rohm Semiconductor	1.5A	4.5V ~ 5.5V	72mOhm	-40°C ~ 85°C (TA)	8-TSSOP-BJ	Load Discharge, Status Flag	2800 Pcs
BD82032FVJ-GE2	Rohm Semiconductor	2A	4.5V ~ 5.5V	72mOhm	-40°C ~ 85°C (TA)	8-TSSOP-BJ	Load Discharge, Status Flag	23007 Pcs
BD82034FVJ-GE2	Rohm Semiconductor	2.5A	4.5V ~ 5.5V	72mOhm	-40°C ~ 85°C (TA)	8-TSSOP-BJ	Load Discharge, Status Flag	18130 Pcs
MIC2544A-1YMM-TR	Microchip Technology	1.5A	2.7V ~ 5.5V	80mOhm	-40°C ~ 85°C (TA)	8-MSOP	Status Flag	5385 Pcs
STMPS2151TTR	STMicroelectronics	500mA	2.7V ~ 5.5V	110mOhm	-40°C ~ 125°C (TJ)	8-MSOP	—	1660 Pcs
STMPS2171TTR	STMicroelectronics	1A	2.7V ~ 5.5V	110mOhm	-40°C ~ 125°C (TJ)	8-MSOP	—	5656 Pcs
TPS2000CDGK	Texas Instruments	2A	4.5V ~ 5.5V	72mOhm	-40°C ~ 85°C (TA)	8-VSSOP	Output Discharge	1836 Pcs
TPS2000CDGN	Texas Instruments	2A	4.5V ~ 5.5V	72mOhm	-40°C ~ 85°C (TA)	8-HVSSOP	Output Discharge	1058 Pcs

Engineering Selection Recommendations

Direct Equivalents (Identical Current Rating - 1.5A):

BD82030FVJ-GE2 and BD82031FVJ-GE2 from Rohm Semiconductor provide 1.5A output current matching the RT9711AGF specification. Both devices maintain the 1:1 ratio, high-side N-Channel configuration, and on/off interface. Load voltage range is restricted to 4.5V ~ 5.5V compared to RT9711AGF's 2.5V ~ 5.5V. Rds On is improved at 72mOhm versus 90mOhm. Operating temperature maximum is reduced to 85°C (TA) versus 125°C (TJ). Both are ROHS3 compliant with Active product status. BD82030FVJ-GE2 offers significantly higher inventory (60200 Pcs).

MIC2544A-1YMM-TR from Microchip Technology matches 1.5A output current and maintains 8-MSOP packaging identical to RT9711AGF. Load voltage range extends to 2.7V minimum, covering the full RT9711AGF range. Rds On is 80mOhm, slightly lower than RT9711AGF. Operating temperature is -40°C ~ 85°C (TA). ROHS3 compliant with Active status.

Higher Current Alternatives (≥2A):

BD82032FVJ-GE2 (2A) and BD82034FVJ-GE2 (2.5A) from Rohm Semiconductor provide increased current capacity. Both maintain core electrical parameters and ROHS3 compliance. Load voltage range is 4.5V ~ 5.5V. Rds On is 72mOhm. Operating temperature is -40°C ~ 85°C (TA). These are suitable for applications requiring current headroom beyond 1.5A.

TPS2000CDGK and TPS2000CDGN from Texas Instruments deliver 2A output current with 72mOhm Rds On. Load voltage is 4.5V ~ 5.5V. Operating temperature is -40°C ~ 85°C (TA). Both are ROHS3 compliant with Active status. Package variants differ: TPS2000CDGK uses 8-VSSOP; TPS2000CDGN uses 8-HVSSOP with exposed pad.

Lower Current Alternatives (≤1A):

BD82028FVJ-GE2 from Rohm Semiconductor provides 1A output current. Load voltage is 4.5V ~ 5.5V. Rds On is 72mOhm. Operating temperature is -40°C ~ 85°C (TA). Suitable for applications with reduced current requirements. Highest inventory availability (230200 Pcs).

STMPS2151TTR from STMicroelectronics delivers 500mA output current. Load voltage range is 2.7V ~ 5.5V, covering full RT9711AGF range. Rds On is 110mOhm. Operating temperature is -40°C ~ 125°C (TJ), matching RT9711AGF thermal range. ROHS3 compliant with Active status. Suitable only for low-current applications.

STMPS2171TTR from STMicroelectronics provides 1A output current. Load voltage is 2.7V ~ 5.5V. Rds On is 110mOhm. Operating temperature is -40°C ~ 125°C (TJ). ROHS3 compliant with Active status.

All substitute parts maintain ROHS3 compliance and Active product status, ensuring regulatory alignment and long-term availability.

Frequently Asked Questions (FAQ)

Q: Can BD82028FVJ-GE2 replace RT9711AGF in all applications?

A: BD82028FVJ-GE2 is suitable only for applications requiring ≤1A output current. The RT9711AGF is rated for 1.5A maximum. If your application draws 1A or less, BD82028FVJ-GE2 is compatible. If your application requires 1.5A, use BD82030FVJ-GE2, BD82031FVJ-GE2, or MIC2544A-1YMM-TR instead.

Q: What is the impact of the voltage range difference between RT9711AGF (2.5V ~ 5.5V) and BD82030FVJ-GE2 (4.5V ~ 5.5V)?

A: BD82030FVJ-GE2 does not support load voltages below 4.5V. If your application operates at 2.5V, 3.3V, or other voltages below 4.5V, BD82030FVJ-GE2 is not suitable. Use MIC2544A-1YMM-TR (2.7V ~ 5.5V), STMPS2171TTR (2.7V ~ 5.5V), or STMPS2151TTR (2.7V ~ 5.5V) instead.

Q: Are the 8-TSSOP and 8-MSOP packages pin-compatible?

A: Both packages are 8-pin surface-mount devices with 0.118" (3.00mm) width and compatible pinout for this product category. PCB layout modifications may be required due to different package body dimensions. Verify footprint compatibility with your PCB design before substitution.

Q: What is the difference between Rds On values across substitute parts?

A: Rds On (on-state resistance) determines power dissipation and voltage drop across the switch. Lower Rds On values reduce heat generation and voltage loss. RT9711AGF has 90mOhm; most Rohm and Texas Instruments substitutes have 72mOhm (20% improvement); STMicroelectronics parts have 110mOhm (22% higher). For high-current or thermally constrained applications, lower Rds On is preferable.

Q: Can I use TPS2000CDGN instead of TPS2000CDGK?

A: Both deliver identical electrical performance (2A, 72mOhm Rds On, 4.5V ~ 5.5V). The difference is packaging: TPS2000CDGK uses 8-VSSOP; TPS2000CDGN uses 8-HVSSOP with exposed pad. The exposed pad in TPS2000CDGN provides improved thermal performance. Select based on your PCB thermal design requirements and available footprint.

Q: What does "Non-Inverting" input type mean for RT9711AGF?

A: Non-inverting input means the output is active (on) when the input control signal is high, and inactive (off) when the input is low. This is standard logic for on/off control. TPS2000 series uses inverting input logic (output active when input is low), which requires different control signal polarity in your circuit design.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and maintain Active product status, ensuring regulatory compliance and continued manufacturing support.

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