
TECH PUBLIC
A pin-compatible upgrade from the same manufacturer with higher current and input voltage ratings.
Find and compare verified substitutes for the TPRT9193-33GB, a 3.3V 300mA LDO in a SOT23-5 package. This guide analyzes pin-compatible upgrades, functional alternatives, and critical parameters to consider for a successful replacement.
Some candidates have lower max input voltage (5.5V vs 6V) or weaker PSRR, requiring careful system-level validation.
Some candidates have incompatible packages or pinouts, which requires a PCB redesign and is not a drop-in replacement.
Multiple alternatives from different vendors are available, mitigating single-source dependency.
Direct replacement for TPRT9193-33GB should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Start with Datasheet verified or Strong match candidates for TPRT9193-33GB, then review parametric alternatives for package and electrical fit.
The main risks are electrical mismatches, such as lower maximum input voltage or weaker noise rejection (PSRR), and mechanical differences like package or pinout.

TECH PUBLIC
A pin-compatible upgrade from the same manufacturer with higher current and input voltage ratings.
| Feature / factor | TPRT9193-33GB | TPRT9013-33GB | ME6119C33M5G | RT9013-33GB-MS | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT23-5 | SOT23-5 | SOT23-5 | SOT-23-5 | SOT23-5 / SOT-23-5 — Identical package and pin count.; ME6119C33M5G: Identical package and pin count.; RT9013-33GB-MS: Identical package and pin count. |
| Pinout | Pin-compatible | Pin-compatible | Pin-compatible | Pin-compatible | Pin-compatible — Datasheet confirmed identical pinout (VIN,GND,EN,NC,VOUT).; ME6119C33M5G: Datasheet confirmed identical pinout.; RT9013-33GB-MS: Pinout matches based on common RT9013 footprint. |
| Current | 300mA | 500mA | 400mA | 500mA | 500mA / 400mA — Higher output current capability.; ME6119C33M5G: Higher output current capability.; RT9013-33GB-MS: Higher output current capability. |
| Voltage | 6.0V | 7.0V | 18V | 5.5V | 7.0V / 18V / 5.5V — Higher maximum input voltage.; ME6119C33M5G: Significantly higher maximum input voltage.; RT9013-33GB-MS: Lower maximum input voltage is a critical limitation. |
| Psrr | 70dB @ 1kHz | 75dB @ 1kHz | 60dB @ 1kHz | - | 75dB @ 1kHz / 60dB @ 1kHz — Slightly better Power Supply Rejection Ratio.; ME6119C33M5G: Weaker PSRR may impact noise-sensitive circuits. |
Verified drop-in options for TPRT9193-33GB 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.