Needs validationlow risk
Strong functional match with superior quiescent current and PSRR; pinout verification is required.
Best Alternatives to RT9013-18GB-MS
The RT9013-18GB-MS is a 500mA SOT-23-5 LDO regulator with a fixed 1.8V output. When seeking alternatives, key parameters to match are the package, pinout, output voltage, and current rating, while also considering dropout voltage and PSRR for application-specific needs.
AI replacement insight
Package riskmedium
While the package is the same (SOT-23-5), pinout must be verified.
Electrical riskmedium
Candidates have variations in dropout voltage and PSRR that may impact performance.
Can it be replaced directly?
No direct drop-in replacement has been confirmed. ETA5055V180DS2F is a promising candidate but requires pinout verification before it can be considered a drop-in.
Best replacement path
ETA5055V180DS2F appears to be the strongest candidate, potentially offering an upgrade in performance, pending pinout verification.
Main risk
The primary risk is pinout incompatibility, as different manufacturers may use different pin assignments for the same SOT-23-5 package.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | RT9013-18GB-MS | ETA5055V180DS2F | BL9165-180BARN | ME6231C18M5G | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT-23-5 | SOT23-5 | SOT23-5 | SOT23-5 | SOT23-5 — Package style matches.; BL9165-180BARN: Package style matches.; ME6231C18M5G: Package style matches.; LP3987H-18B5F: Package style matches. |
| Voltage | 1.8V | 1.8V | 1.8V | 3V to 18V | 1.8V / 3V to 18V — Output voltage matches.; BL9165-180BARN: Output voltage matches.; ME6231C18M5G: Higher minimum input voltage (3V) may not be suitable for all applications. |
| Current | 500mA | 500mA | 500mA | - | 500mA / 600mA — Output current matches.; BL9165-180BARN: Output current matches.; LP3987H-18B5F: Higher output current capability. |
| Quiescent Current | 60µA | 4.5µA | - | - | 4.5µA — Significantly lower quiescent current improves efficiency. |
| Psrr | 75dB @ 1kHz | 102dB | 83dB @ 1kHz | 65dB @ 1kHz | 102dB / 83dB @ 1kHz / 65dB @ 1kHz — Higher PSRR provides better noise rejection.; BL9165-180BARN: PSRR is better than target.; ME6231C18M5G: PSRR is weaker than target.; LP3987H-18B5F: PSRR is weaker than target. |
| Dropout Voltage | 100mV @ 100mA | - | 360mV @ 500mA | - | 360mV @ 500mA / 360mV @ 600mA — Dropout voltage is likely higher than target.; LP3987H-18B5F: Dropout voltage is likely higher than target. |
Application & sourcing insights
Questions & answers
ETA5055V180DS2F is a strong functional alternative with matching core specs and superior quiescent current and PSRR. However, pinout compatibility must be verified from the datasheets.