Needs validationhigh risk
High-performance option with excellent PSRR and low Iq, but lower output current (500mA).
Best Alternatives to TPAP2112K-3.3TRG1
Reviewing alternatives for the TPAP2112K-3.3TRG1, a 3.3V, 600mA LDO in a SOT23-5 package. Key considerations for substitutes include output current capability, input voltage range, and pinout compatibility.
AI replacement insight
Electrical riskhigh
All candidates have 100mA lower output current, which is a significant electrical downgrade.
Package risklow
All candidates share the SOT23-5 package, but pinout must be verified.
Sourcing riskmedium
Alternatives are available from multiple vendors, but none are direct matches.
Can it be replaced directly?
No direct, 1-to-1 replacements were found. All reviewed candidates have a lower output current rating of 500mA, which is a critical downgrade from the target's 600mA.
Best replacement path
For applications that can tolerate 500mA, ETA5055V330DS2F offers lower quiescent current and superior PSRR, making it a strong functional alternative after verification.
Main risk
The primary risk is the lower maximum output current (500mA vs 600mA), which could lead to voltage drops or shutdown in the application.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | TPAP2112K-3.3TRG1 | ETA5055V330DS2F | SSP7603P33M5R | TPCAT6219-330TDGT3 | Compatibility / risk |
|---|---|---|---|---|---|
| Current | 600mA | 500mA | 500mA | 500mA | 500mA — Significant downgrade, requires application current budget review.; SSP7603P33M5R: Significant downgrade, requires application current budget review.; TPCAT6219-330TDGT3: Significant downgrade, requires application current budget review.; TPL740F33-5TR: Significant downgrade, requires application current budget review. |
| Voltage | 1.2V - 5.5V | 1.8V - 5.5V | up to 15V | 2.3V - 5.5V | 1.8V - 5.5V / up to 15V / 2.3V - 5.5V / 2.4V - 5.5V — Higher minimum input voltage.; SSP7603P33M5R: Wider max input voltage, but min Vin needs check.; TPCAT6219-330TDGT3: Higher minimum input voltage.; TPL740F33-5TR: Higher minimum input voltage. |
| Quiescent Current | 10µA | 4.5µA | 1.5µA | 10µA | 4.5µA / 1.5µA / 10µA / 49µA — Lower quiescent current.; SSP7603P33M5R: Significantly lower quiescent current.; TPCAT6219-330TDGT3: Matches target's low quiescent current.; TPL740F33-5TR: Higher quiescent current may impact power budget. |
| Psrr | N/A | 102dB | - | - | 102dB — Superior PSRR, good for noise-sensitive applications. |
| Package | SOT23-5 | - | SOT23-5 | SOT23-5 | SOT23-5 / SOT-23-5 — Package matches, but pinout must be verified.; TPCAT6219-330TDGT3: Package matches, but pinout must be verified.; TPL740F33-5TR: Package matches, but pinout must be verified. |
Application & sourcing insights
Questions & answers
No direct drop-in exists. For noise-sensitive applications tolerating 500mA, ETA5055V330DS2F is a strong candidate. For general use, TPCAT6219-330TDGT3 matches quiescent current but at 500mA.