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Best Alternatives to RT9193-33GB-MS

Package: SOT-23-5MSKSEMIPMIC - Voltage Regulators - LinearOutput Voltage: 3.3 VOutput Current: 300 mAInput Voltage Range: 1.2 V to 6 VQuiescent Current: 70 uAShutdown Current: 1 uA

RT9193-33GB-MS is a 3.3V, 300mA LDO in a SOT-23-5 package. While several alternatives exist, careful review of the input voltage range is critical for a successful replacement.

AI replacement insight

Electrical riskmedium

Several candidates have a higher minimum input voltage than the target's 1.2V, which is a critical failure point if not verified.

Package risklow

All viable candidates share the same SOT-23-5 package and a standard pinout, but datasheet verification is always recommended.

Can it be replaced directly?

Direct replacement for RT9193-33GB-MS should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

RP114N331D-TR-FF is the closest match but requires checking the application's input voltage against its 1.4V-5.25V range.

Main risk

Input Voltage Range Mismatch

Recommended alternatives

2
TPMIC5219-3.3YM5 package
TPMIC5219-3.3YM5

TECH PUBLIC

Needs validationhigh risk

Functional alternative with higher output current and very low Iq, but a higher minimum input voltage.

View details

Alternative comparison matrix

Feature / factorRT9193-33GB-MSRP114N331D-TR-FFTPMIC5219-3.3YM5TPL740F33-5TRCompatibility / risk
PackageSOT-23-5SOT-23-5SOT-23-5SOT-23-5SOT-23-5 — Package matches.; TPMIC5219-3.3YM5: Package matches.; TPL740F33-5TR: Package matches.
PinoutPinout matches based on datasheet.Pinout matches based on datasheet.--Pinout matches based on datasheet. — Pin 1:IN, 2:GND, 3:EN, 5:OUT.
Voltage1.2 V to 6 V1.4 V to 5.25 V2 V to 20 V2.4 V to 5.5 V1.4 V to 5.25 V / 2 V to 20 V / 2.4 V to 5.5 V — Narrower input voltage range.; TPMIC5219-3.3YM5: Higher minimum input voltage.; TPL740F33-5TR: Significantly higher minimum input voltage.
Current70 uA50 µA1.5 µA500 mA50 µA / 1.5 µA / 500 mA — Lower quiescent current is an improvement.; TPMIC5219-3.3YM5: Extremely low quiescent current is a major improvement.; TPL740F33-5TR: Higher output current is an upgrade.
Temperature-40°C to +85°C---40°C to +125°C-40°C to +125°C — Wider temperature range is an upgrade.

Application & sourcing insights

Questions & answers

Verified drop-in options for RT9193-33GB-MS 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.