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LM25019是一款48V，100mA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） .LM25019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，并且可实现超高降压比。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。欠压闭锁（ UVLO）电路支持对输入欠压阈值和滞后进行单独编程。其他保护特性包括：热关断和偏置电源欠压闭锁。
LM25019器件采用8引脚WSON和8引脚SO PowerPAD塑料封装。
所有商标均为其各自所有者的财产。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 |
| LM25019 | LM25011-Q1 | LM25018 | LM5009 | LM5165 | LM5165-Q1 | TPS54061 | TPS54061-Q1 | TPS54062 |
|---|---|---|---|---|---|---|---|---|
| 7.5 | 6 | 7.5 | 9.5 | 3 | 3 | 4.7 | 4.7 | 4.7 |
| 48 | 42 | 48 | 95 | 65 | 65 | 60 | 60 | 60 |
| 1.25 | 2.51 | 1.25 | 2.5 | 1.23 | 1.23 | 0.8 | 0.8 | 0.8 |
| 40 | 40 | 40 | 85 | 65 | 65 | 58 | 58 | 58 |
| 0.1 | 2 | 0.3 | 0.15 | 0.15 | 0.15 | 0.2 | 0.2 | 0.05 |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 100 |
| 1000 | 2000 | 1000 | 600 | 600 | 600 | 1100 | 1100 | 400 |
| 1.75 | 1.2 | 1.75 | 0.485 | 0.01 | 0.01 | 0.09 | 0.09 | 0.089 |
| Synchronous Rectification UVLO Adjustable | Adjustable Current Limit | Synchronous Rectification UVLO Adjustable | Enable | 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 | Enable Frequency Synchronization Light Load Efficiency Synchronous Rectification UVLO Adjustable | Enable Frequency Synchronization Light Load Efficiency Synchronous Rectification UVLO Adjustable | Enable Frequency Synchronization Light Load Efficiency Synchronous Rectification UVLO Adjustable |
| Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) | Current Mode | Current Mode | Current Mode |
| 90 | 99 | 90 | 99 | 100 | 100 | 98 | 98 | 98 |
| -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 150 | -40 to 150 | -40 to 150 | -40 to 150 | -40 to 125 |
| Catalog | Automotive | Catalog | Catalog | Catalog | Automotive | Catalog | Automotive | Catalog |
| SO PowerPAD WSON | MSOP-PowerPAD | SO PowerPAD WSON | VSSOP WSON | VSON | VSON | SON | SON | SON VSSOP |
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