TPS2047AD Equivalent & Substitute Parts

Part Overview

The TPS2047AD is a Power Management Integrated Circuit (PMIC) manufactured by Texas Instruments, classified as a Power Switch/Driver with 1:1 N-Channel configuration. This component operates as a general-purpose high-side switch rated for 250mA output current across a 2.7V to 5.5V load voltage range, housed in a 16-SOIC surface mount package.

The TPS2047AD currently holds Obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

TPS2047AD

Texas InstrumentsIn Stock: 2151TPS2047AD Datasheet

Current PartRFQ

TPS2047BD

Texas InstrumentsIn Stock: 1452TPS2047BD Datasheet

DirectRFQ

TPS2057AD

Texas InstrumentsIn Stock: 1207TPS2057AD Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPS2047AD is determined by the following critical parameters:

• Package Compatibility: All substitute parts must use the 16-SOIC surface mount package to ensure PCB layout and assembly compatibility.
• Electrical Specifications: Load voltage range (2.7V ~ 5.5V), maximum output current (250mA), and output configuration (high-side N-Channel) must be maintained.
• Fault Protection: Current limiting, over-temperature protection, and UVLO functionality must be present.
• Interface Logic: Input signal type (inverting vs. non-inverting) determines functional compatibility in the circuit.
• Thermal Operating Range: Temperature specifications must support the application environment.

Based on these criteria, two substitute parts are identified:

1. TPS2047BD — Direct manufacturer substitute with improved specifications (Active status, extended temperature range, lower Rds On).
2. TPS2057AD — Parametric equivalent with functional differences (non-inverting input, dual ratio configuration 1:2, 1:1).

Parameter Comparison

Engineering Selection Recommendations

TPS2047BD is the recommended direct substitute for the obsolete TPS2047AD. Both components share identical electrical specifications, package geometry, and fault protection features. The TPS2047BD offers improved product status (Active), extended operating temperature range (-40°C to 85°C versus 0°C to 85°C), and superior on-resistance performance (70mOhm versus 80mOhm). All compliance certifications (ROHS3, REACH Unaffected, EAR99) are maintained. This part provides drop-in compatibility with no circuit modifications required.

TPS2057AD functions as a parametric equivalent but introduces functional differences that require circuit evaluation. The non-inverting input logic and dual ratio configuration (1:2, 1:1) differ from the TPS2047AD's inverting 1:1 topology. Selection of TPS2057AD is appropriate only when the application circuit can accommodate these functional variations or when the dual ratio capability provides design advantages. Operating temperature range matches the TPS2047AD (0°C to 85°C).

Both substitute parts maintain full compliance with environmental and regulatory standards applicable to the original component.

Frequently Asked Questions (FAQ)

Q: Can TPS2047BD be used as a direct replacement for TPS2047AD without circuit modifications?

A: Yes. TPS2047BD maintains identical electrical specifications, package configuration, and fault protection features as TPS2047AD. The inverting input logic and 1:1 output ratio are preserved. No circuit modifications are required for functional compatibility.

Q: What are the key differences between TPS2047BD and TPS2057AD?

A: TPS2047BD is a direct substitute with identical input logic (inverting) and output ratio (1:1). TPS2057AD is a parametric equivalent featuring non-inverting input logic and dual ratio capability (1:2, 1:1). The input logic difference requires circuit evaluation to determine compatibility. TPS2057AD is not a drop-in replacement without circuit analysis.

Q: Why is the TPS2047AD listed as Obsolete?

A: Product status reflects manufacturer lifecycle decisions. The TPS2047BD (Active status) provides equivalent functionality with enhanced specifications and ongoing manufacturer support, making it the preferred choice for new designs and production continuity.

Q: Are all substitute parts available in the same packaging options?

A: All three parts (TPS2047AD, TPS2047BD, TPS2057AD) are supplied in 16-SOIC surface mount packages with identical physical dimensions (0.154", 3.90mm Width). PCB layout compatibility is maintained across all parts.

Q: What is the impact of the lower Rds On value in TPS2047BD?

A: TPS2047BD exhibits lower on-resistance (70mOhm versus 80mOhm), resulting in reduced power dissipation and improved thermal performance. This enhancement is beneficial for applications with sustained current operation or thermal constraints.

Q: Do all substitute parts meet the same environmental and regulatory standards?

A: Yes. TPS2047BD and TPS2057AD both maintain ROHS3 compliance, REACH Unaffected status, and EAR99 classification, matching the original TPS2047AD specifications.