数据:
LM5018 100V、300mA 恒定导通时间同步降压稳压器 数据表 (Rev. H)
LM5018是一款100V,300mA同步降压稳压器,其集成了高侧和低侧金属氧化物半导体场效应应晶体管(MOSFET) .LM5018器件所采用的恒定导通时间(COT)控制方案无需环路补偿,可提供出色的瞬态响应,并且可实现超低降压比。导通时间与输入电压成反比,这使得整个输入电压范围内的频率几乎保持恒定。高压启动稳压器为IC的内部运行以及集成栅极驱动器提供了偏置电源。
峰值电流限制电路可防止出现过载情况。低压闭锁(电压范围内的频率几乎保持恒定。 UVLO)电路支持对输入低压阈值和滞后进行单独编程。
LM5018器件采用WSON-8和SO PowerPAD-8塑料封装。
所有商标均为其各自所有者的财产。
| Vin (Min) (V) |
| Vin (Max) (V) |
| Vout (Min) (V) |
| Vout (Max) (V) |
| Iout (Max) (A) |
| Regulated Outputs (#) |
| Switching Frequency (Min) (kHz) |
| Switching Frequency (Max) (kHz) |
| Iq (Typ) (mA) |
| Features |
| Control Mode |
| Duty Cycle (Max) (%) |
| Operating Temperature Range (C) |
| Rating |
| Package Group |
| LM5018 | LM5017 | LM5165 | LM5166 |
|---|---|---|---|
| 7.5 | 7.5 | 3 | 3 |
| 100 | 100 | 65 | 65 |
| 1.25 | 1.25 | 1.23 | 1.23 |
| 90 | 90 | 65 | 65 |
| 0.3 | 0.65 | 0.15 | 0.5 |
| 1 | 1 | 1 | 1 |
| 50 | 50 | 50 | 50 |
| 1000 | 1000 | 600 | 600 |
| 1.75 | 1.75 | 0.01 | 0.01 |
| Synchronous Rectification UVLO Adjustable | Synchronous Rectification UVLO Adjustable | Adjustable Current Limit Enable Light Load Efficiency Power Good Pre-Bias Start-Up Synchronous Rectification UVLO Adjustable | Adjustable Current Limit Enable Light Load Efficiency Power Good Pre-Bias Start-Up Synchronous Rectification UVLO Adjustable |
| Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) |
| 90 | 90 | 100 | 100 |
| -40 to 125 | -40 to 125 | -40 to 150 | -40 to 150 |
| Catalog | Catalog | Catalog | Catalog |
| SO PowerPAD WSON | SO PowerPAD WSON | VSON | VSON |
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