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Best Alternatives to LMR38020SDDAR

Package: 8-PowerSOIC (0.154", 3.90mm Width)Texas InstrumentsVoltage Regulators - DC DC Switching RegulatorsSeries: -Package: Tape & Reel (TR); Cut Tape (CT); Digi-Reel®Voltage - Input (Min): 4.2VVoltage - Input (Max): 80VVoltage - Output (Min/Fixed): 1V

LMR38020SDDAR is a high-voltage (80V), 2A synchronous step-down converter. Finding a direct replacement requires careful matching of its wide input voltage range, a key feature for robust industrial applications.

AI replacement insight

Electrical riskhigh

All candidates have lower max input voltage (36V-60V vs 80V).

Package risklow

All candidates share the same HSOIC-8 package.

Can it be replaced directly?

No direct drop-in replacement was found. All candidates have a lower maximum input voltage rating than the target's 80V.

Best replacement path

Use a parametric alternative like TPS54360DDAR, but only if the application's maximum input voltage is below 60V.

Main risk

The primary risk is electrical overstress due to the lower maximum input voltage of all potential alternatives.

Recommended alternatives

2
TPS54360DDAR package
TPS54360DDAR

Texas Instruments

Needs validationhigh risk

Alternative with higher output current (3.5A) but a lower max input voltage (60V).

View details

Alternative comparison matrix

Feature / factorLMR38020SDDARTPS54360DDARLMR33630ADDARAlt 3Compatibility / risk
PackageHSOIC-8HSOIC (8)-HSOIC-8 — Package matches, check thermal pad.
Voltage4.2V - 80V4.5V - 60V-3.8V - 36V — Candidate has significantly lower max input voltage.
Current2.0A3.5A-3.0A — Candidate offers higher output current.
Temperature-40°C to 150°C-40°C to 150°C--40°C to 150°C — Operating temperature range matches.
Switching Frequency200kHz - 2.2MHz-400kHz (Fixed)400kHz (Fixed) — Fixed frequency vs. adjustable range.

Application & sourcing insights

Questions & answers

TPS54360DDAR is a potential alternative if your system's input voltage does not exceed 60V. It offers a higher 3.5A output current in the same package, but the reduced voltage rating requires careful verification.