TPS2015DG4 Equivalent & Substitute Parts

Part Overview

The TPS2015DG4 is a Power Management Integrated Circuit (PMIC) manufactured by Texas Instruments, functioning as a USB Switch with N-Channel output configuration. This high-side power switch delivers 1A maximum output current in an 8-SOIC surface mount package. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and production requirements.

Substiute Parts

TPS2015DG4

Texas InstrumentsIn Stock: 1147TPS2015DG4 Datasheet

Current PartRFQ

TPS2015D

Texas InstrumentsIn Stock: 3699TPS2015D Datasheet

MFR RecommendedRFQ

AP2151SG-13

Diodes IncorporatedIn Stock: 12771AP2151SG-13 Datasheet

MFR RecommendedRFQ

AP2171SG-13

Diodes IncorporatedIn Stock: 12953AP2171SG-13 Datasheet

MFR RecommendedRFQ

AP2191SG-13

Diodes IncorporatedIn Stock: 72611AP2191SG-13 Datasheet

MFR RecommendedRFQ

TPS2061D

Texas InstrumentsIn Stock: 2167TPS2061D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPS2015DG4 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Switch Type: USB Switch or General Purpose
• Output Configuration: High Side
• Number of Outputs: 1
• Ratio - Input:Output: 1:1
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC or equivalent 8-pin surface mount
• Rds On (Typ): 95mOhm (acceptable tolerance)
• Features: Status Flag
• Fault Protection: Current Limiting (Fixed), Over Temperature (minimum)
• RoHS Status: ROHS3 Compliant

Secondary Compatibility Considerations:

• Current - Output (Max): Minimum 1A
• Voltage - Load: Must encompass or exceed 4.75V ~ 5.25V range
• Operating Temperature: Must support 0°C ~ 125°C or broader range

The substitute parts are grouped into two categories based on output channel type: N-Channel alternatives (direct functional equivalents) and P-Channel alternatives (functionally compatible with design adaptation).

Parameter Comparison

Engineering Selection Recommendations

N-Channel Direct Equivalents (Recommended for Pin-Compatible Replacement):

TPS2015D is the primary recommended substitute. This Texas Instruments part maintains identical electrical specifications to the TPS2015DG4 with N-Channel output type, 1A maximum current, and 95mOhm on-resistance. The part is currently in active production status with 3,600 units in stock. Packaging is supplied in Tube format. This substitution requires no circuit redesign.

TPS2061D offers an alternative N-Channel solution from Texas Instruments with enhanced specifications. It provides broader voltage load range (2.7V ~ 5.5V versus 4.75V ~ 5.25V), lower on-resistance (70mOhm versus 95mOhm), and extended operating temperature range (-40°C ~ 125°C). Additional fault protection includes UVLO (Under Voltage Lock Out). This part is active with 2,100 units in stock.

P-Channel Alternatives (Require Circuit Adaptation):

AP2151SG-13 (Diodes Incorporated) provides P-Channel output with 500mA maximum current. This part is suitable only for applications where output current does not exceed 500mA. It includes enhanced fault protection (Reverse Current, UVLO) and broader voltage range (2.7V ~ 5.5V). High inventory availability (12,700 units).

AP2171SG-13 (Diodes Incorporated) delivers P-Channel output with 1A maximum current, matching the original part's current rating. Voltage range is 2.7V ~ 5.5V with comprehensive fault protection. Operating temperature is -40°C ~ 85°C. Moisture sensitivity is MSL 3 (168 Hours). Inventory: 12,900 units.

AP2191SG-13 (Diodes Incorporated) offers the highest current capability among P-Channel alternatives at 1.5A maximum output. Voltage range is 2.7V ~ 5.5V with full fault protection suite. MSL rating is 1 (Unlimited), matching the original part. Inventory: 72,504 units (highest availability).

All substitute parts maintain ROHS3 compliance and 8-SOIC package compatibility with the original TPS2015DG4.

Frequently Asked Questions (FAQ)

Q: Can TPS2015D be used as a direct replacement for TPS2015DG4?

A: Yes. TPS2015D is electrically and mechanically identical to TPS2015DG4. Both are N-Channel USB switches with 1A output current, 95mOhm on-resistance, and 8-SOIC packaging. The primary difference is product status: TPS2015D is active production while TPS2015DG4 is discontinued. No circuit modifications are required.

Q: What is the difference between N-Channel and P-Channel output types?

A: N-Channel switches (TPS2015D, TPS2061D) control the low side of the load path, while P-Channel switches (AP2151SG-13, AP2171SG-13, AP2191SG-13) control the high side. The TPS2015DG4 uses N-Channel configuration. P-Channel alternatives require circuit redesign to accommodate the inverted control logic and different pin configuration.

Q: Why do some substitutes have lower current ratings?

A: AP2151SG-13 is rated for 500mA maximum output current, which is insufficient for applications requiring the full 1A capability of TPS2015DG4. This part is suitable only for designs with reduced current requirements. AP2171SG-13 and AP2191SG-13 both support 1A or higher current and are appropriate for full-current applications.

Q: What does MSL (Moisture Sensitivity Level) mean for component selection?

A: MSL indicates the maximum time a component can be exposed to moisture before soldering. MSL 1 (Unlimited) allows indefinite storage without moisture control. MSL 3 (168 Hours) requires baking before soldering if exposed to moisture for more than 168 hours. TPS2015D, TPS2061D, AP2151SG-13, and AP2191SG-13 have MSL 1. AP2171SG-13 has MSL 3, requiring additional moisture management in production environments.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts (TPS2015D, TPS2061D, AP2151SG-13, AP2171SG-13, AP2191SG-13) are ROHS3 compliant, matching the compliance status of TPS2015DG4.

Q: Which substitute offers the best performance improvement?

A: TPS2061D provides the lowest on-resistance (70mOhm versus 95mOhm), broadest voltage range (2.7V ~ 5.5V), and extended temperature range (-40°C ~ 125°C). It also includes UVLO protection. For P-Channel applications, AP2191SG-13 offers the highest current capability (1.5A) with MSL 1 rating and comprehensive fault protection.

Q: Can I use AP2191SG-13 in place of TPS2015DG4 without any modifications?

A: No. AP2191SG-13 is a P-Channel device while TPS2015DG4 is N-Channel. P-Channel substitution requires circuit redesign to accommodate inverted control logic and different pin assignments. Direct pin-compatible replacement requires an N-Channel alternative such as TPS2015D or TPS2061D.

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging is used for manual handling and lower-volume applications. Tape & Reel (TR) and Cut Tape (CT) packaging are designed for automated assembly processes. Both formats contain the same electronic component; packaging selection depends on production methodology and volume requirements.