L7985TR vs ST1S41PUR Comparison
Detailed side-by-side comparison of L7985TR 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.
Specification Comparison
| Parameter | L7985TR | ST1S41PUR |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Category | DC-DC Converters | DC-DC Converters |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.10 | $0.92 |
| Output Type | Adjustable | — |
| Output Voltage Range | 0.6 V to 38 V | 0.8 V to VIN (adjustable) |
| Maximum Output Current | 2 A | 4 A continuous |
| Input Voltage Range | 4.5 V to 38 V | 4.0 V to 18 V |
| Switching Frequency | 250 kHz | 850 kHz nominal (700 kHz to 1 MHz adjustable) |
| Efficiency | >85% at full load | — |
| Quiescent Current | 2.5 mA | 1.5 mA typical |
| Internal Power MOSFET | Yes, 3A peak current | — |
| Control Architecture | Current-mode | — |
| Soft-Start | Built-in | — |
| Thermal Shutdown | Yes | — |
| Operating Temperature | -40°C to +150°C | — |
| Package | HSOP-8 | 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% |
| Soft-Start | — | Internal |
| Protection Features | — | Overcurrent, Thermal Shutdown, Cycle-by-Cycle Current Limit |
| Operating Temperature Range | — | -40 °C to +125 °C junction |
| MSL Level | — | 1 |