L7981TR vs L7986TR 对比
详细并排对比 L7981TR 出自 STMicroelectronics 和 L7986TR 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
L7986TR - 3A 61V Step-Down Switching Regulator | STMicroelectronics
L7986TR ✓ 量产中规格对比
| 参数 | L7981TR | L7986TR |
|---|---|---|
| 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） | $1.72 | $1.85 |
| 输出类型 | Fixed | Adjustable |
| 输出电压 | 3.3 V | — |
| 最大输出电流 | 2 A | 3 A |
| 输入电压范围 | 4.5 V to 28 V | 4.5 V to 61 V |
| 开关频率 | 250 kHz | 250 kHz |
| 效率 | 85% (typical, 12V to 3.3V at 1A) | — |
| 静态电流 | 2.5 mA | — |
| 热阻 | 62.5 C/W | — |
| 工作温度 | -40C to +150C | — |
| 封装 | SO-8 | HSOP-8 |
| 安装类型 | Surface Mount | Surface Mount |
| MSL 等级 | 1 (unlimited) | — |
| RoHS 状态 | Compliant | Compliant |
| 使能引脚 | Yes (active-high) | Yes |
| 同步整流 | No | — |
| 功能 | — | Step-Down (Buck) Switching Regulator |
| 输出电压范围 | — | 0.6 V to VIN |
| 同步整流器 | — | No |
| Internal Power MOSFET | — | Yes |
| 热关断 | — | Yes |
| Current Limiting | — | Yes |
| 工作温度范围 | — | -40C to +150C |