TPS2041ADRG4 Equivalent & Substitute Parts

Part Overview

The TPS2041ADRG4 is a Power Management IC (PMIC) functioning as a power switch/driver with 1:1 N-Channel configuration, rated for 500mA output current in an 8-SOIC package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design requirements and production needs. Alternative parts maintain core electrical specifications while offering different channel types, current ratings, or input logic configurations.

Substiute Parts

TPS2041ADRG4

Texas InstrumentsIn Stock: 5254TPS2041ADRG4 Datasheet

Current PartRFQ

TPS2041ADR

Texas InstrumentsIn Stock: 7970TPS2041ADR Datasheet

MFR RecommendedRFQ

TPS2051ADR

Texas InstrumentsIn Stock: 9053TPS2051ADR Datasheet

Parametric EquivalentRFQ

AP2141SG-13

Diodes IncorporatedIn Stock: 7394AP2141SG-13 Datasheet

MFR RecommendedRFQ

AP2161SG-13

Diodes IncorporatedIn Stock: 31559AP2161SG-13 Datasheet

MFR RecommendedRFQ

AP2181SG-13

Diodes IncorporatedIn Stock: 17021AP2181SG-13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the TPS2041ADRG4 is based on the following critical parameters:

Primary Substitution Criteria:

• Ratio - Input:Output: 1:1
• Output Configuration: High Side
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Voltage - Load: 2.7V ~ 5.5V
• Fault Protection: Current Limiting (Fixed), Over Temperature, UVLO
• RoHS Status: ROHS3 Compliant
• Mounting Type: Surface Mount

Secondary Variation Parameters (Allow Substitution with Design Consideration):

• Output Type: N-Channel or P-Channel
• Current - Output (Max): 500mA or higher
• Rds On (Typ): 80mOhm or lower
• Input Type: Inverting or Non-Inverting
• Operating Temperature Range: 0°C ~ 85°C or extended range
• Switch Type: General Purpose or USB Switch

Substitute parts are grouped into two categories: direct equivalents from Texas Instruments (same channel type and logic) and cross-manufacturer alternatives from Diodes Incorporated (different channel type with enhanced features).

Parameter Comparison

Engineering Selection Recommendations

TPS2041ADR (Texas Instruments): Direct equivalent with identical electrical specifications and N-Channel inverting logic. Active product status ensures long-term availability. Recommended as primary replacement for TPS2041ADRG4 with no design modifications required.

TPS2051ADR (Texas Instruments): Parametric equivalent with identical electrical specifications but non-inverting input logic. Active product status. Suitable for designs where input signal polarity differs from the original TPS2041ADRG4. Requires logic inversion in control circuitry.

AP2141SG-13 (Diodes Incorporated): Cross-manufacturer substitute with P-Channel output configuration, non-inverting input logic, and extended operating temperature range (-40°C ~ 85°C). Includes additional features: load discharge and status flag. Rds On increased to 95mOhm. Active product status. Suitable for applications requiring P-Channel switching topology and enhanced temperature performance.

AP2161SG-13 (Diodes Incorporated): Cross-manufacturer substitute with P-Channel output, inverting input logic, and 1A current rating. Extended operating temperature range (-40°C ~ 85°C). Includes status flag feature. Rds On 95mOhm. Active product status. Applicable for designs requiring higher current capacity and P-Channel switching.

AP2181SG-13 (Diodes Incorporated): Cross-manufacturer substitute with P-Channel output, inverting input logic, and 1.5A current rating. Extended operating temperature range (-40°C ~ 85°C). Includes status flag feature. Rds On 95mOhm. Active product status. Suitable for high-current P-Channel switching applications with enhanced thermal performance requirements.

All substitute parts maintain ROHS3 compliance, MSL Level 1, and core fault protection mechanisms (current limiting, over-temperature, UVLO). Selection depends on required output channel type (N-Channel vs. P-Channel), input logic polarity, current capacity, and operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can TPS2041ADR directly replace TPS2041ADRG4 without circuit modifications?

A: Yes. TPS2041ADR is a direct equivalent with identical electrical specifications, package, and input/output logic. The only difference is product status (active vs. discontinued). No design changes are required.

Q: What is the difference between TPS2041ADR and TPS2051ADR?

A: Both are N-Channel 500mA power switches with identical voltage and current ratings. The primary difference is input logic: TPS2041ADR uses inverting logic while TPS2051ADR uses non-inverting logic. Selection depends on control signal polarity in your circuit.

Q: Why would I choose a Diodes Incorporated part (AP series) over Texas Instruments?

A: Diodes Incorporated parts offer P-Channel output configuration (opposite of the original N-Channel), higher current ratings (1A or 1.5A vs. 500mA), extended operating temperature range (-40°C to 85°C vs. 0°C to 85°C), and additional features such as load discharge and status flag output. These are beneficial for applications requiring different switching topology or enhanced performance.

Q: Are all substitute parts in the same 8-SOIC package?

A: Yes. All listed substitutes use the 8-SOIC (0.154", 3.90mm Width) package, ensuring PCB footprint compatibility with the original TPS2041ADRG4.

Q: What is the impact of increased Rds On in Diodes parts (95mOhm vs. 80mOhm)?

A: The 15mOhm increase in on-resistance results in slightly higher power dissipation at maximum current. For 500mA operation, this represents an additional 7.5mW of dissipation. For applications operating below 500mA or with thermal headroom, this difference is negligible. Thermal analysis is recommended for high-current or high-frequency switching scenarios.

Q: Can I use AP2161SG-13 or AP2181SG-13 if my circuit requires only 500mA?

A: Yes. Both parts are rated for higher current (1A and 1.5A respectively) and operate safely at lower currents. The higher current rating provides design margin and thermal headroom. However, the P-Channel output configuration requires circuit topology changes compared to the original N-Channel design.

Q: What does "inverting" vs. "non-inverting" input logic mean?

A: Inverting logic: a high input signal turns the switch off; a low input signal turns it on. Non-inverting logic: a high input signal turns the switch on; a low input signal turns it off. Circuit control logic must match the selected part's input type.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitutes maintain ROHS3 compliance and MSL Level 1 (unlimited moisture sensitivity), matching the environmental and regulatory status of the original TPS2041ADRG4.