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Best Alternatives to TPSPX3819M5-L-3-3

Package: SOT-23-5TECH PUBLICPMIC - Voltage Regulators - LinearOutput Voltage: 3.3 VOutput Current: 500 mAInput Voltage Range: 2 V to 20 VQuiescent Current: 5 µADropout Voltage: 0.35 V @ 100 mA

Find and compare alternatives for the TPSPX3819M5-L-3-3, a 3.3V 500mA SOT-23-5 LDO. This guide highlights pin-compatible options and key parametric differences to consider for a successful substitution.

AI replacement insight

Electrical riskmedium

Lower max operating temperature is a significant electrical derating. Slightly higher dropout voltage is a minor risk.

Package risklow

Package and pinout are identical, posing minimal physical layout risk.

Can it be replaced directly?

Direct replacement for TPSPX3819M5-L-3-3 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Start with Datasheet verified or Strong match candidates for TPSPX3819M5-L-3-3, then review parametric alternatives for package and electrical fit.

Main risk

The primary risk is thermal, as the best alternative is rated for 85°C, while the original part is rated for 125°C.

Recommended alternatives

1
TPMIC5219-3.3YM5 package
TPMIC5219-3.3YM5

TECH PUBLIC

Needs validationmedium risk

Pin-compatible LDO with matching voltage/current but a lower max operating temperature; requires thermal review.

View details

Alternative comparison matrix

Feature / factorTPSPX3819M5-L-3-3TPMIC5219-3.3YM5Alt 2Alt 3Compatibility / risk
PackageSOT-23-5SOT-23-5SOT-23-5 — Package matches.
PinoutVerified identicalVerified identicalVerified identical — Pinout is identical based on datasheet review.
Voltage3.3 V3.3 V3.3 V — Output voltage matches.
Current500 mA500 mA500 mA — Output current matches.
Temperature-40°C to 125°C-40°C to 85°C-40°C to 85°C — Candidate has a lower maximum operating temperature.
Quiescent Current5 µA1.5 µA1.5 µA — Candidate has lower quiescent current, which is beneficial.

Application & sourcing insights

Questions & answers

Verified drop-in options for TPSPX3819M5-L-3-3 are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.