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| PartNumber | ST1S30IPUR | ST1S31D-R | ST1S31PUR |
| Description | Switching Voltage Regulators 3A 1.5 MHz PWM 100 mOhm Regulator | Switching Voltage Regulators 3A DC SD switch reg 1.5MHz ST1S31 | Switching Voltage Regulators 3A DC Step Down REG 2.8V to 5.5V 1.5MHz |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | Switching Voltage Regulators | Switching Voltage Regulators | Switching Voltage Regulators |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | DFN-8 | SO-8 | VFDFPN-8 |
| Output Voltage | 800 mV to 1.2 V | 800 mV | Adjustable |
| Output Current | 3 A | 3 A | 3 A |
| Number of Outputs | 1 Output | 1 Output | 1 Output |
| Input Voltage MAX | 5.5 V | 5.5 V | 5.5 V |
| Topology | Buck | Buck | Buck |
| Input Voltage MIN | 2.7 V | 2.8 V | - |
| Switching Frequency | 1.5 MHz | 1.5 MHz | 1.5 MHz |
| Minimum Operating Temperature | - 25 C | - 40 C | - |
| Maximum Operating Temperature | + 125 C | + 150 C | - |
| Series | ST1S30 | ST1S31 | ST1S31 |
| Packaging | Reel | Reel | Reel |
| Product | Switching Regulators | - | - |
| Type | Voltage Converter | Step Down Regulator | - |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Load Regulation | 0.2 % | 0.2 % | - |
| Operating Supply Current | 1.5 mA | - | - |
| Product Type | Switching Voltage Regulators | Switching Voltage Regulators | Switching Voltage Regulators |
| Factory Pack Quantity | 4500 | 2500 | 3000 |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | PMIC - Power Management ICs |
| Unit Weight | 0.001319 oz | 0.017870 oz | 0.000776 oz |