Best Alternatives to TPS55340PWPR

Package: 14-TSSOP (0.173", 4.40mm Width) Exposed PadTexas InstrumentsVoltage Regulators - DC DC Switching RegulatorsSeries: -Package: Tape & Reel (TR); Cut Tape (CT); Digi-Reel®Voltage - Input (Min): 2.9VVoltage - Input (Max): 32VVoltage - Output (Min/Fixed): 2.9V

The TPS55340PWPR is a versatile 5A, 40V non-synchronous DC-DC converter supporting Boost, SEPIC, and Flyback topologies. Finding a direct drop-in replacement requires careful review of key electrical parameters.

AI replacement insight

Electrical riskhigh

Significantly lower input voltage and current ratings.

Package risklow

Package and pinout are compatible based on datasheet evidence.

Can it be replaced directly?

No direct, 1-to-1 replacement with identical or better specs was found. The closest option, TPS61175PWPR, is a downgrade.

Best replacement path

Use TPS61175PWPR as a pin-compatible downgrade for less demanding applications, or redesign with a different part for full performance.

Main risk

The primary risk is using a lower-rated part (TPS61175PWPR) which could fail if the system's voltage or current exceeds its limits.

Recommended alternatives

1
TPS61175PWPR package
TPS61175PWPR

Texas Instruments

Needs validationmedium risk

A pin-compatible but lower-rated alternative with a 3A switch current limit and a maximum input voltage of 18V.

View details

Alternative comparison matrix

Feature / factorTPS55340PWPRTPS61175PWPRAlt 2Alt 3Compatibility / risk
PackageHTSSOP-14HTSSOP-14HTSSOP-14 — Package matches.
TopologyBoost, SEPIC, FlybackBoost, SEPIC, FlybackBoost, SEPIC, Flyback — Functional topology matches.
Voltage2.9 V to 32 V2.9 V to 18 V2.9 V to 18 V — Candidate has a lower maximum input voltage.
Current5 A3 A3 A — Candidate has a lower switch current limit.
Temperature-40°C to 150°C-40°C to 125°C-40°C to 125°C — Candidate has a lower maximum operating temperature.

Application & sourcing insights

Questions & answers

The TPS61175PWPR is a pin-compatible option from Texas Instruments, but it is a downgrade with a lower 3A current limit and 18V maximum input voltage. It is suitable only if your application's requirements are within these lower limits.