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LM5141-Q1是一款用于高压宽V IN 降压转换器应用的同步降压控制器。控制方法基于峰值电流模式控制。电流模式控制具有固有线路前馈，逐周期电流限制和简化的环路补偿等特性.LM5141-Q1具备压摆率控制功能，能够轻松满足CISPR和汽车EMI要求。 /p>
LM5141-Q1有两种开关频率可选：2.2MHz和440kHz。栅极驱动器具有压摆率控制功能，可对其进行调整以降低EMI。
在轻负载或无负载条件下，LM5141-Q1通过在跳周期模式下运行来提升低功耗效率.LM5141-Q1具备一个自动切换至外部偏置电源的高电压偏置稳压器，能够提升效率并降低I Q （来自V IN ）。可调特性包括频率同步，逐周期电流限制，针对持续过载条件的断续模式故障保护以及电源正常输出。 /p>
所有商标均为他们各自的主人。
| Vin (Min) (V) |
| Vin (Max) (V) |
| Vout (Min) (V) |
| Vout (Max) (V) |
| Iout (Max) (A) |
| Regulated Outputs (#) |
| Number of Phases |
| Switching Frequency (Min) (kHz) |
| Switching Frequency (Max) (kHz) |
| Iq (Typ) (mA) |
| Features |
| Duty Cycle (Max) (%) |
| Operating Temperature Range (C) |
| Rating |
| Package Group |
| Control Mode |
| LM5141-Q1 | LM25117-Q1 | LM25119Q | LM5117-Q1 | LM5119Q | LM5140-Q1 | LM5642 | TPS40170-Q1 |
|---|---|---|---|---|---|---|---|
| 3.8 | 4.5 | 4.5 | 5.5 | 5.5 | 3.8 | 4.5 | 4.5 |
| 65 | 42 | 42 | 65 | 65 | 65 | 36 | 60 |
| 1.5 | 0.8 | 0.8 | 0.8 | 0.8 | 1.5 | 1.236 | 0.6 |
| 15 | 41 | 41.3 | 62 | 64 | 15 | 34 | 57 |
| 20 | 20 | 40 | 20 | 15 | 40 | 20 | 20 |
| 1 | 1 | 2 | 1 | 2 | 2 | 2 | 1 |
| 1 | 1 | 2 | 1 | 2 | 1 | 2 | 1 |
| 350 | 50 | 50 | 50 | 50 | 350 | 150 | 100 |
| 2600 | 750 | 750 | 750 | 750 | 2600 | 250 | 600 |
| 0.035 | 4.8 | 6 | 4.8 | 6 | 0.035 | 1.1 | 4.5 |
| Adjustable Current Limit Enable Frequency Synchronization Light Load Efficiency Power Good Synchronous Rectification | Adjustable Current Limit Enable Frequency Synchronization Light Load Efficiency Synchronous Rectification Tracking UVLO Adjustable | Adjustable Current Limit Enable Frequency Synchronization Light Load Efficiency Synchronous Rectification UVLO Adjustable | Adjustable Current Limit Enable Frequency Synchronization Light Load Efficiency Synchronous Rectification Tracking UVLO Adjustable | Adjustable Current Limit Enable Frequency Synchronization Light Load Efficiency Synchronous Rectification UVLO Adjustable | Adjustable Current Limit Enable Frequency Synchronization Light Load Efficiency Phase Interleaving Power Good Synchronous Rectification | Adjustable Current Limit Enable Frequency Synchronization Synchronous Rectification | Adjustable Current Limit Enable Frequency Synchronization Power Good Pre-Bias Start-Up Synchronous Rectification Tracking UVLO Adjustable |
| 78 | 98 | 98 | 98 | 98 | 78 | 99 | 95 |
| -40 to 150 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 150 | -40 to 125 | -40 to 125 |
| Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | Catalog | Automotive |
| VQFN | HTSSOP WQFN | WQFN | HTSSOP WQFN | WQFN | VQFNP | HTSSOP TSSOP | VQFN |
| Current Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode | Voltage Mode | |
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