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数据: LM5085/-Q1 75-V Constant On-Time PFET Buck Switching Controller 数据表
LM5085是一款高效PFET开关稳压控制器,可用于快速,轻松地开发小型,高效的降压稳压器,适用于各种应用。该高压控制器包含一个PFET栅极驱动器和一个高压偏置调节器,可在4.5 V至75 V的宽输入范围内工作。恒定的导通时间调节原理不需要环路补偿,简化了电路实现,并产生超快的负载瞬态响应。由于输入电压和导通时间之间的反比关系,工作频率几乎保持恒定,线路和负载变化。 PFET架构允许100%占空比工作,以实现低压差。 PFET的R DS(ON)或外部检测电阻可用于检测过流检测电流。
| 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 |
| LM5085 | LM25085 | LM25085-Q1 | LM25085A | LM5085-Q1 |
|---|---|---|---|---|
| 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
| 75 | 42 | 42 | 42 | 75 |
| 1.25 | 1.25 | 1.25 | 0.9 | 1.25 |
| 75 | 42 | 42 | 42 | 75 |
| 10 | 10 | 10 | 10 | 10 |
| 1 | 1 | 1 | 1 | 1 |
| 1 | 1 | 1 | 1 | 1 |
| 50 | 50 | 50 | 50 | 50 |
| 1000 | 1000 | 1000 | 1000 | 1000 |
| 1.3 | 1.25 | 1.25 | 1.25 | 1.3 |
| Adjustable Current Limit Enable Frequency Synchronization | Adjustable Current Limit Frequency Synchronization | Adjustable Current Limit Frequency Synchronization | Adjustable Current Limit Frequency Synchronization | Adjustable Current Limit Enable Frequency Synchronization |
| 100 | 100 | 100 | 100 | 100 |
| -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
| Catalog | Catalog | Automotive | Catalog | Automotive |
| MSOP-PowerPAD VSSOP WSON | MSOP-PowerPAD VSSOP WSON | MSOP-PowerPAD | MSOP-PowerPAD VSSOP WSON | MSOP-PowerPAD |
| Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) |
型号:LM5085MYX/NOPB 封装:HVSSOP-8_3X3MM-EP
品牌:TI 描述:LM5085是一款高效率PFET降压控制器,适用于4.5V至75V的宽输入电压范围。该控制器具有恒定导通时间控制,无需环路补偿,简化了电路设计,并提供超快瞬态响应。支持100%占空比操作,适用于低输入电压下的调节范围扩展。
金额:¥4.75000
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