BD9B304QWZ-E2 vs TPS62840DLCR 对比
详细并排对比 BD9B304QWZ-E2 出自 ROHM Semiconductor 和 TPS62840DLCR 出自 Texas Instruments。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 | BD9B304QWZ-E2 | TPS62840DLCR |
|---|---|---|
| 品牌 | ROHM Semiconductor | Texas Instruments |
| 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） | $0.72 | $1.21 |
| 拓扑 | Synchronous Buck (Step-Down) | Synchronous Step-Down (Buck) Converter |
| 输入电压范围 | 2.7 V to 5.5 V | 1.8 V to 6.5 V |
| 输出电压范围 | 0.8 V to 0.8 x VIN (adjustable) | Adjustable (0.8 V to V_IN) |
| 最大输出电流 | 3.0 A | 750 mA |
| 开关频率 | 1.0 MHz / 2.0 MHz (selectable via RT pin) | — |
| High-Side MOSFET RDSon | 40 mOhm | — |
| Low-Side MOSFET RDSon | 40 mOhm | — |
| Control Method | Constant On-Time (COT) | — |
| 输出数量 | 1 | — |
| 封装 | 8-XFDFN Exposed Pad (UMMP008AZ) | 8-pin VFDFN (DLC), 3.0 x 3.0 mm |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度范围 | [DATA_NEEDED: operating temperature range] | — |
| MSL 等级 | [DATA_NEEDED: MSL rating] | [DATA_NEEDED: MSL rating] |
| RoHS 状态 | Compliant | Compliant |
| Lead-Free | Yes | — |
| Built-in Protection | Over-current protection, Thermal shutdown, Soft-start | — |
| Typical Quiescent Current | — | 60 nA |
| Quiescent Current (100% Mode) | — | 120 nA |
| Nominal Switching Frequency | — | 1.8 MHz |
| Control Topology | — | DCS-Control (voltage-mode + current-mode) |
| Efficiency at 1 uA Load (3.6 VIN to 1.8 VOUT) | — | 80% |
| Efficiency at Full Load | — | [DATA_NEEDED: efficiency at 750 mA] |
| 关断电流 | — | [DATA_NEEDED: shutdown IQ] |
| STOP Pin | — | Yes (disables switching) |
| 软启动 | — | Programmable via SS pin capacitor |
| 工作结温 | — | -40C to +125C |