ST1S12GR vs ST1S41PUR Comparison
Detailed side-by-side comparison of ST1S12GR by STMicroelectronics and ST1S41PUR by STMicroelectronics. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
STMicroelectronics
ST1S12GR - 3A, 18V Synchronous Step-Down Regulator | STMicroelectronics
ST1S12GR ✓ Active
Specification Comparison
| Parameter | ST1S12GR | ST1S41PUR |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Category | DC-DC Converters | DC-DC Converters |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.75 | $0.92 |
| Output Type | Adjustable | — |
| Output Voltage Range | 0.8 V to VIN | 0.8 V to VIN (adjustable) |
| Maximum Output Current | 3 A | 4 A continuous |
| Input Voltage Range | 4.5 V to 18 V | 4.0 V to 18 V |
| Switching Frequency | 1.5 MHz | 850 kHz nominal (700 kHz to 1 MHz adjustable) |
| Efficiency | Up to 95% | — |
| Synchronous Rectification | Yes | — |
| Control Architecture | Current Mode | — |
| Soft-Start | Internal | Internal |
| Overcurrent Protection | Yes | — |
| Thermal Shutdown | Yes | — |
| Operating Temperature | -40C to +150C | — |
| Package | SOT-23-6 (TSOT-6) | VFQFPN-8 (3x3 mm) with exposed thermal pad |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant | Compliant |
| Topology | — | Synchronous Buck (Step-Down) DC-DC Converter |
| High-Side Switch Rds(on) | — | 95 mΩ |
| Low-Side Switch Rds(on) | — | 69 mΩ (synchronous rectifier) |
| Control Method | — | Peak Current-Mode PWM with Internal Compensation |
| Peak Efficiency | — | Up to 90% |
| Quiescent Current | — | 1.5 mA typical |
| Protection Features | — | Overcurrent, Thermal Shutdown, Cycle-by-Cycle Current Limit |
| Operating Temperature Range | — | -40 °C to +125 °C junction |
| MSL Level | — | 1 |