ST1S41PUR vs ST1S40PUR 对比
详细并排对比 ST1S41PUR 出自 STMicroelectronics 和 ST1S40PUR 出自 STMicroelectronics。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
STMicroelectronics
ST1S40PUR - 3A, 4V to 18V Step-Down Converter | STMicroelectronics
ST1S40PUR ✓ 量产中规格对比
| 参数 | ST1S41PUR | ST1S40PUR |
|---|---|---|
| 品牌 | STMicroelectronics | STMicroelectronics |
| 分类 | DC-DC Converters | DC-DC Converters |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $0.92 | $0.72 |
| 拓扑 | Synchronous Buck (Step-Down) DC-DC Converter | — |
| 输入电压范围 | 4.0 V to 18 V | 4 V to 18 V |
| 输出电压范围 | 0.8 V to VIN (adjustable) | 0.8 V to VIN |
| 最大输出电流 | 4 A continuous | 3 A |
| 开关频率 | 850 kHz nominal (700 kHz to 1 MHz adjustable) | 1.5 MHz |
| 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% | — |
| 静态电流 | 1.5 mA typical | 1.5 mA |
| 软启动 | Internal | — |
| Protection Features | Overcurrent, Thermal Shutdown, Cycle-by-Cycle Current Limit | — |
| 工作温度范围 | -40 °C to +125 °C junction | — |
| 封装 | VFQFPN-8 (3x3 mm) with exposed thermal pad | DFN6 (3x3 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| MSL 等级 | 1 | 1 (unlimited) |
| RoHS 状态 | Compliant | Compliant |
| 输出类型 | — | Adjustable |
| 效率 | — | 90% (typical) |
| 关断电流 | — | 1 uA (max) |
| 热阻 | — | 45 C/W |
| 工作温度 | — | -40C to +150C |
| 使能引脚 | — | Yes (active-high) |