ST1S50PUR vs TPS54331DR Comparison
Detailed side-by-side comparison of ST1S50PUR by STMicroelectronics and TPS54331DR by Texas Instruments. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
STMicroelectronics
ST1S50PUR - 3A, 18V Synchronous Step-Down Converter | STMicroelectronics
ST1S50PUR β ActiveTexas Instruments
TPS54331DR - 3A 28V Buck Converter 570kHz | Texas Instruments
TPS54331DR β ActiveSpecification Comparison
| Parameter | ST1S50PUR | TPS54331DR |
|---|---|---|
| Brand | STMicroelectronics | Texas Instruments |
| Category | DC-DC Converters | DC-DC Converters |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.20 | $0.85 |
| Output Type | Adjustable | β |
| Output Voltage Range | 0.8 V to VIN | 0.8 V to 25 V (adjustable) |
| Maximum Output Current | 3 A | 3 A |
| Input Voltage Range | 4 V to 18 V | 3.5 V to 28 V |
| Switching Frequency | 1.5 MHz | 570 kHz (fixed) |
| Efficiency | 90% at 3 A | β |
| Quiescent Current | 1.2 mA | β |
| High-Side RDS(on) | 120 mΞ© | β |
| Low-Side RDS(on) | 80 mΞ© | β |
| Thermal Resistance | 40 Β°C/W | β |
| Operating Temperature | -40Β°C to +150Β°C | -40C to +125C (ambient); -40C to +150C (TJ) |
| Package | DFN8 (3x3 mm) | 8-SOIC (0.154 in, 3.90 mm width), D |
| Mounting Type | Surface Mount | Surface Mount |
| MSL Level | 1 | β |
| RoHS Status | Compliant | Compliant |
| Topology | β | Non-synchronous Buck (Step-Down) |
| Control Method | β | Current mode with internal slope compensation |
| Light Load Feature | β | Eco-mode pulse skipping |
| Shutdown Supply Current | β | 1 uA |
| High-Side MOSFET | β | Integrated, low RDS(on) |
| Soft Start | β | Adjustable via SS/TR pin |
| Protection Features | β | Overcurrent (cycle-by-cycle), thermal shutdown |
| Number of Outputs | β | 1 |