Always first. Most semiconductor firms now provide "high-res schematic" as a download option alongside the datasheet. Look for "Application Note" or "Reference Design" specific to the S12022.
| Parameter | Value | Quality Impact | | :--- | :--- | :--- | | | 1.7V – 5.5V | Low voltage operation for battery devices | | Output Voltage | 1.2V – 5.0V (fixed) | Eliminates external divider noise | | Dropout Voltage | 160mV @ 150mA | High efficiency, low heat | | Output Current | 150mA (typ.) | Suitable for analog/RF stages | | PSRR | 70dB @ 1kHz | Excellent line noise rejection | | Output Noise | 30 µVrms (10Hz–100kHz) | Critical for ADC/VCO supplies | s12022 schematic extra quality