ST1S03PUR vs RT8077GQW 对比
详细并排对比 ST1S03PUR 出自 STMicroelectronics 和 RT8077GQW 出自 Richtek。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。
规格对比
| 参数 | ST1S03PUR | RT8077GQW |
|---|---|---|
| 品牌 | STMicroelectronics | Richtek |
| 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） | $0.78 | $0.36 |
| 拓扑 | Step-down (buck) DC-DC converter | Synchronous Buck (Step-Down) |
| Control Scheme | Current-mode PWM | — |
| 开关频率 | 1.5 MHz (typical) | Up to 2 MHz (programmable, resistor-set) |
| 输入电压范围 | 3 V to 16 V | 2.6 V to 5.5 V |
| 输出电压范围 | 0.8 V to VIN (adjustable) | 0.8 V to 5 V (adjustable) |
| 最大输出电流 | 1.5 A | — |
| DC Output Voltage Tolerance | 2 % | — |
| Internal Soft-Start | 50 us to 100 us power-on delay | — |
| Typical Efficiency | > 70 % | — |
| Quiescent Current (not switching) | [DATA_NEEDED: quiescent current value] | — |
| 工作温度范围 | -40 C to +125 C | — |
| 封装 | DFN-6 (3x3 mm) with exposed pad | 8-WDFN Exposed Pad (WDFN-8 2x2 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| MSL 等级 | [DATA_NEEDED: MSL rating] | 1 |
| RoHS 状态 | Compliant | Compliant |
| Output Current | — | 2 A continuous |
| Maximum Duty Cycle | — | 100% (low-dropout operation) |
| Control Architecture | — | Peak current-mode with internal compensation |
| Internal Switches | — | Synchronous low-Rdson MOSFETs (no Schottky required) |
| 软启动 | — | Internal |
| 限流 | — | Cycle-by-cycle |
| Thermal Protection | — | Thermal shutdown |
| 工作温度 | — | -40 °C to +85 °C (TA) |