TPS2048DR Equivalent & Substitute Parts

Part Overview

The TPS2048DR is a Power Management Integrated Circuit (PMIC) manufactured by Texas Instruments, classified as a Power Switch/Driver with 1:1 N-Channel configuration. This 16-SOIC surface mount device provides 250mA maximum output current with general-purpose switching capability and integrated fault protection including current limiting, over-temperature, and UVLO (Under-Voltage Lock-Out) functions.

The TPS2048DR is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this power switching topology.

Substiute Parts

TPS2048DR

Texas InstrumentsIn Stock: 1171TPS2048DR Datasheet

Current PartRFQ

LM3544M-L/NOPB

Texas InstrumentsIn Stock: 1628LM3544M-L/NOPB Datasheet

MFR RecommendedRFQ

LM3544MX-L/NOPB

Texas InstrumentsIn Stock: 5159LM3544MX-L/NOPB Datasheet

MFR RecommendedRFQ

TPS2048ADR

Texas InstrumentsIn Stock: 1236TPS2048ADR Datasheet

Parametric EquivalentRFQ

TPS2048AD

Texas InstrumentsIn Stock: 1079TPS2048AD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPS2048DR are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents (Direct Replacements): Parts that maintain identical electrical specifications across all critical parameters: 1:1 Input:Output ratio, 250mA maximum output current, 80mOhm typical on-resistance, inverting input type, general-purpose switch classification, and identical load voltage range (2.7V ~ 5.5V). These parts differ only in product status (active vs. obsolete) and packaging format (tube, cut tape, or tape & reel). Parametric equivalents include TPS2048AD and TPS2048ADR.

Manufacturer Recommended Substitutes (Functional Alternatives): Parts that provide enhanced electrical performance while maintaining mechanical compatibility (16-SOIC package, surface mount, identical load voltage range, and identical fault protection architecture). The LM3544 series (LM3544M-L/NOPB and LM3544MX-L/NOPB) operates at higher current capacity (500mA vs. 250mA), implements 1:2 Input:Output ratio, features non-inverting input type, and includes status flag capability. These parts are classified as USB Switch type and are currently in active production status.

Substitution eligibility is determined by: package compatibility (16-SOIC), load voltage range overlap (2.7V ~ 5.5V), output configuration (high-side N-channel), fault protection presence, and surface mount mounting type.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalents): TPS2048AD and TPS2048ADR are recommended as primary alternatives to the obsolete TPS2048DR. Both parts maintain identical electrical specifications and are currently in active production status. Selection between these two parametric equivalents depends on packaging requirements: TPS2048AD is supplied in tube format, while TPS2048ADR is supplied in cut tape format. Both comply with ROHS3 and maintain MSL 1 classification.

For Enhanced Performance Applications: LM3544M-L/NOPB and LM3544MX-L/NOPB are manufacturer-recommended substitutes suitable for applications requiring higher output current capacity (500mA vs. 250mA). These parts are currently in active production and provide extended operating temperature ranges. Selection between these two LM3544 variants depends on packaging requirements: LM3544M-L/NOPB is supplied in tube format, while LM3544MX-L/NOPB is supplied in tape & reel format. Both comply with ROHS3 and maintain MSL 1 classification.

Circuit design modifications are required when implementing LM3544 series substitutes due to differences in input logic type (non-inverting vs. inverting) and Input:Output ratio (1:2 vs. 1:1).

Frequently Asked Questions (FAQ)

Q: Can TPS2048AD or TPS2048ADR be used as direct drop-in replacements for TPS2048DR? A: Yes. TPS2048AD and TPS2048ADR are parametric equivalents with identical electrical specifications, including 250mA output current, 80mOhm on-resistance, 1:1 input:output ratio, inverting input type, and identical load voltage range. Both are pin-compatible 16-SOIC packages. The only differences are product status (active vs. obsolete) and packaging format (tube vs. cut tape).

Q: What are the key differences between TPS2048 and LM3544 series parts? A: The primary differences are: (1) Output current capacity—LM3544 provides 500mA vs. TPS2048's 250mA; (2) Input:Output ratio—LM3544 implements 1:2 vs. TPS2048's 1:1; (3) Input logic type—LM3544 is non-inverting vs. TPS2048's inverting; (4) Switch classification—LM3544 is USB Switch type vs. TPS2048's general-purpose type; (5) Operating temperature range—LM3544M-L/NOPB extends to -40°C ~ 125°C vs. TPS2048's 0°C ~ 85°C. All parts share identical load voltage range (2.7V ~ 5.5V), package type (16-SOIC), and fault protection architecture.

Q: Are packaging format differences (tube, cut tape, tape & reel) electrically significant? A: No. Packaging format differences (tube, cut tape, tape & reel) are logistical and do not affect electrical performance or functionality. Selection should be based on assembly process requirements and supply chain preferences.

Q: Can LM3544 series parts be used in applications designed for TPS2048DR without circuit modifications? A: No. LM3544 series substitution requires circuit design modifications due to non-inverting input logic (vs. inverting in TPS2048) and 1:2 Input:Output ratio (vs. 1:1 in TPS2048). These functional differences necessitate control signal and output configuration adjustments.

Q: Do all substitute parts maintain identical compliance certifications? A: Yes. All substitute parts listed (TPS2048AD, TPS2048ADR, LM3544M-L/NOPB, LM3544MX-L/NOPB) comply with ROHS3, maintain MSL 1 classification, and carry identical REACH and ECCN designations as the main part TPS2048DR.

Q: Which substitute part should be selected for new designs? A: For applications requiring identical electrical specifications, select TPS2048AD or TPS2048ADR based on packaging format preference. For applications requiring higher current capacity and extended temperature range, select LM3544M-L/NOPB or LM3544MX-L/NOPB based on packaging format preference. All parts are currently in active production status.