1. TPS2061D Substitution Conclusion Conditional substitution is possible, but critical differences must be noted and circuit design adjustments may be required. The TPS2061D matches the original part in load voltage range, rated current, package, and status flag functionality. The primary differences are: 1) The output type is N-channel, whereas the original part is P-channel. In an identical high-side configuration, the TPS2061D typically requires an integrated charge pump to drive the NMOS gate. Its turn-on/turn-off level logic differs from a PMOS circuit, which may necessitate adjustments to the peripheral drive logic. 2) The input type is non-inverting, while the original part is inverting. For the same Enable (EN) signal level, the switch's on/off state is opposite to the original part. This must be matched by either hardware inversion or modifying the GPIO output logic via software configuration. 3) It lacks reverse current protection. This may pose a risk in applications requiring prevention of current backflow from the output to the input (e.g., hot-swap or battery backup scenarios). If the application does not require this protection and the aforementioned circuit or logic adjustments are acceptable, it can serve as a substitute.