L7987 vs L7987LTR 对比
详细并排对比 L7987 出自 STMicroelectronics 和 L7987LTR 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
L7987LTR - 3A 61V Step-Down Switching Regulator | STMicroelectronics
L7987LTR ✓ 量产中规格对比
| 参数 | L7987 | L7987LTR |
|---|---|---|
| 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） | $1.31 | $2.77 |
| 拓扑 | Step-down (buck), asynchronous | — |
| 输入电压范围 | 4.5 V to 61 V | 4.5 V to 61 V |
| 输出电压范围 | 0.8 V to VIN (adjustable) | 0.6 V to VIN |
| 最大输出电流 | 3 A | — |
| 开关频率 | 250 kHz (typ), adjustable 250 kHz to 1500 kHz | 250 kHz to 1 MHz (programmable) |
| Synchronization Range | 250 kHz to 1500 kHz (external clock on SYNCH) | — |
| Duty Cycle | Up to 100% (fail-safe mode) | Up to 100% |
| Control Method | Peak current mode | — |
| 静态电流 | [DATA_NEEDED: Iq] | 1.3 mA (typical) |
| 效率 | Up to ~90% (application dependent) | Up to 90% (typical) |
| 限流 | Adjustable | — |
| 工作温度范围 | [DATA_NEEDED: industrial / extended] | — |
| 封装 | 16-TSSOP (HTSSOP) with exposed pad | HTSSOP-16 (exposed pad) |
| Package Body Size | 0.173" (4.40 mm) width | — |
| 安装类型 | Surface Mount | Surface Mount |
| RoHS 状态 | Compliant | Compliant |
| Embedded Switchover | Yes (VBIAS pin) | — |
| Synchronization Pin | Yes (SYNCH) | — |
| MSL 等级 | [DATA_NEEDED: MSL rating] | — |
| 功能 | — | Step-Down (Buck) Switching Regulator |
| Output Current | — | 3 A |
| 基准电压 | — | 0.6 V (typical) |
| 工作温度 | — | -40°C to +150°C (junction) |
| 热阻，结到环境 | — | 40°C/W |
| Control Architecture | — | Current Mode |
| Power-Good Flag | — | Yes |
| Internal Compensation | — | Yes |