TPS2046DR Equivalent & Substitute Parts

Part Overview

The TPS2046DR is an active power management integrated circuit manufactured by Texas Instruments, classified as a Power Management (PMIC) device. It functions as a power switch driver with 1:2 output configuration, featuring N-Channel high-side switching capability. The device is rated for 250mA maximum output current and operates across a 2.7V to 5.5V load voltage range. The TPS2046DR maintains Active product status with full ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when design requirements necessitate alternative output configurations, increased current capacity, or different channel polarity while maintaining core electrical and thermal specifications within the same package class.

Substiute Parts

TPS2046DR

Texas InstrumentsIn Stock: 2569TPS2046DR Datasheet

Current PartRFQ

TPS2045DR

Texas InstrumentsIn Stock: 2048TPS2045DR Datasheet

Parametric EquivalentRFQ

TPS2046BDR

Texas InstrumentsIn Stock: 1969TPS2046BDR Datasheet

Parametric EquivalentRFQ

AP2142SG-13

Diodes IncorporatedIn Stock: 18435AP2142SG-13 Datasheet

MFR RecommendedRFQ

AP2162SG-13

Diodes IncorporatedIn Stock: 5490AP2162SG-13 Datasheet

MFR RecommendedRFQ

AP2182SG-13

Diodes IncorporatedIn Stock: 2154AP2182SG-13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPS2046DR are categorized based on the following electrical and mechanical parameters that determine functional equivalence:

Primary Substitution Criteria:

• Output Configuration: High Side switching topology
• Load Voltage Range: 2.7V ~ 5.5V compatibility
• Operating Temperature: -40°C ~ 85°C (TA)
• Package Class: 8-pin SOIC/SOP form factor
• Fault Protection: Current Limiting, Over Temperature, UVLO
• Product Status: Active
• Compliance: ROHS3 Compliant

Substitution Categories:

Category 1 - Texas Instruments N-Channel Variants: Parts maintaining identical N-Channel topology with variations in output count and on-resistance specifications. These include TPS2045DR (1 output) and TPS2046BDR (2 outputs with improved Rds On).

Category 2 - Diodes Incorporated P-Channel Alternatives: Parts utilizing P-Channel topology with 1:2 output configuration and enhanced current ratings (500mA to 1.5A). These include AP2142SG-13, AP2162SG-13, and AP2182SG-13, featuring additional Status Flag functionality and Reverse Current protection.

Parameter Comparison

Engineering Selection Recommendations

TPS2045DR Selection: Use when single output configuration is required while maintaining N-Channel topology and identical electrical specifications. Suitable for designs where dual-output capability is not needed. Maintains full compliance and unlimited MSL rating.

TPS2046BDR Selection: Use as direct replacement for TPS2046DR when improved on-resistance (70mOhm vs 80mOhm) is beneficial for thermal management or efficiency. Maintains identical output count, channel type, and all protection features. Recommended for thermal-constrained applications.

AP2142SG-13 Selection: Use when P-Channel topology is required with 500mA output capacity and Status Flag functionality. Introduces Reverse Current protection not present in TPS2046DR. Suitable for USB switching applications requiring higher current than 250mA.

AP2162SG-13 Selection: Use when 1A output capacity is required with P-Channel topology and Status Flag. Note MSL rating of 3 (168 Hours) requires controlled storage conditions. Suitable for applications requiring doubled current capacity over TPS2046DR.

AP2182SG-13 Selection: Use when maximum current capacity (1.5A) is required with P-Channel topology. Maintains unlimited MSL rating (1) and includes Status Flag and Reverse Current protection. Suitable for high-current USB switching and power distribution applications.

All substitute parts maintain Active product status, ROHS3 compliance, and identical operating temperature range (-40°C ~ 85°C). Package form factor differences (8-SOIC vs 8-SOP) are mechanically compatible within standard PCB footprint tolerances.

Frequently Asked Questions (FAQ)

Q: Can TPS2045DR replace TPS2046DR in all applications? A: TPS2045DR provides single output instead of dual outputs. Use only when application requires single output switching. All other electrical parameters remain identical.

Q: What is the primary difference between TPS2046DR and TPS2046BDR? A: TPS2046BDR features lower on-resistance (70mOhm vs 80mOhm), reducing heat dissipation. Both maintain 2-output configuration and identical voltage/current ratings.

Q: Are Diodes Incorporated AP-series parts direct replacements? A: AP-series parts use P-Channel topology versus N-Channel in TPS2046DR. They are functional alternatives for applications where channel polarity can be accommodated. All maintain identical load voltage range and operating temperature.

Q: What does the Status Flag feature in AP-series parts provide? A: Status Flag provides output status indication not available in TPS2046DR. This feature enables system monitoring of switch state in applications requiring fault diagnostics.

Q: Why do AP2162SG-13 and AP2182SG-13 have different MSL ratings? A: AP2162SG-13 carries MSL 3 (168 Hours) requiring controlled moisture exposure during storage and handling. AP2182SG-13 maintains MSL 1 (Unlimited). Both are ROHS3 compliant and Active status.

Q: Are 8-SOIC and 8-SOP packages interchangeable on PCB? A: Both packages are 8-pin configurations with 0.154" width. Footprint compatibility depends on specific PCB design. Verify pin pitch and lead spacing with PCB layout requirements before substitution.

Q: Which substitute provides the highest current capacity? A: AP2182SG-13 provides 1.5A maximum output current, six times the TPS2046DR rating of 250mA.

Q: Can I use AP-series parts in applications designed for N-Channel switching? A: P-Channel topology requires different gate drive logic and circuit design. Direct substitution is not possible without circuit redesign to accommodate inverted logic.