| Base Product Number | ST1S12 |
| Category | Integrated Circuits (ICs) |
| Current - Output | 700mA |
| Frequency - Switching | 1.7MHz |
| Function | Step-Down |
| Mfr | STMicroelectronics |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature | -40?C ~ 125?C (TJ) |
| Output Configuration | Positive |
| Output Type | Fixed |
| Package | Tape & Reel (TR) |
| Package / Case | SOT-23-5 Thin, TSOT-23-5 |
| Part Status | Active |
| Series, Voltage - Output (Max) | - |
| Supplier Device Package | TSOT-23-5 |
| Synchronous Rectifier | Yes |
| Topology | Buck |
| Voltage - Input (Max) | 5.5V |
| Voltage - Input (Min) | 2.5V |
| Voltage - Output (Min/Fixed) | 1.2V |