RT8077GQW vs ST1S03PUR 对比
详细并排对比 RT8077GQW 出自 Richtek 和 ST1S03PUR 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。
规格对比
| 参数 | RT8077GQW | ST1S03PUR |
|---|---|---|
| 品牌 | Richtek | 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） | $0.36 | $0.78 |
| 拓扑 | Synchronous Buck (Step-Down) | Step-down (buck) DC-DC converter |
| 输入电压范围 | 2.6 V to 5.5 V | 3 V to 16 V |
| 输出电压范围 | 0.8 V to 5 V (adjustable) | 0.8 V to VIN (adjustable) |
| Output Current | 2 A continuous | — |
| 开关频率 | Up to 2 MHz (programmable, resistor-set) | 1.5 MHz (typical) |
| 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 | — |
| 封装 | 8-WDFN Exposed Pad (WDFN-8 2x2 mm) | DFN-6 (3x3 mm) with exposed pad |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度 | -40 °C to +85 °C (TA) | — |
| MSL 等级 | 1 | [DATA_NEEDED: MSL rating] |
| RoHS 状态 | Compliant | Compliant |
| Control Scheme | — | Current-mode PWM |
| 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 |