TPS54331DR vs NCP3170BDR2G 对比
详细并排对比 TPS54331DR 出自 Texas Instruments 和 NCP3170BDR2G 出自 onsemi。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 | TPS54331DR | NCP3170BDR2G |
|---|---|---|
| 品牌 | Texas Instruments | onsemi |
| 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） | $0.85 | $1.18 |
| 拓扑 | Non-synchronous Buck (Step-Down) | Synchronous Buck (Step-Down) |
| 输入电压范围 | 3.5 V to 28 V | 4.5 V to 18 V |
| 输出电压范围 | 0.8 V to 25 V (adjustable) | 0.8 V to VIN (adjustable) |
| 最大输出电流 | 3 A | — |
| 开关频率 | 570 kHz (fixed) | 1 MHz (B suffix) |
| Control Method | Current mode with internal slope compensation | — |
| Light Load Feature | Eco-mode pulse skipping | — |
| Shutdown Supply Current | 1 uA | — |
| High-Side MOSFET | Integrated, low RDS(on) | — |
| 软启动 | Adjustable via SS/TR pin | Internal |
| Protection Features | Overcurrent (cycle-by-cycle), thermal shutdown | — |
| 工作温度 | -40C to +125C (ambient); -40C to +150C (TJ) | — |
| 封装 | 8-SOIC (0.154 in, 3.90 mm width), D | 8-SOIC (0.154", 3.90 mm width) |
| 安装类型 | Surface Mount | Surface Mount |
| 输出数量 | 1 | — |
| RoHS 状态 | Compliant | Compliant |
| Continuous Output Current | — | 3 A |
| 基准电压 | — | 0.8 V (internal) |
| Control Mode | — | Peak Current-Mode PWM |
| Internal Switches | — | High-side P-MOS + Low-side N-MOS |
| 电源正常输出 | — | Yes (open-drain) |
| 工作温度范围 | — | -40 C to +85 C (TA) |
| MSL 等级 | — | 1 (unlimited floor life at <30 C / 85% RH) |
| Lead-Free | — | Yes |