LM5017 是一款 100V、600mA 同步降压稳压器，具有集成的高侧和低侧 MOSFET。LM5017 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，并且可实现极高的降压比。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 (UVLO) 电路支持对输入低压阈值和滞后进行单独编程。其他保护 功能 包括热关断和偏置电源低压锁定 (VCC UVLO)。
LM5017 器件采用 WSON-8 和 HSOP PowerPAD-8 塑料封装。
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| 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 |
| LM5017 | LM25010 | LM25017 | LM5007 | LM5010 | LM5010A | LM5010A-Q1 | LM5018 | LM5160-Q1 | LM5160A | LM5161 | LM5165 | LM5166 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7.5 | 6 | 7.5 | 9 | 8 | 6 | 6 | 7.5 | 4.5 | 4.5 | 4.5 | 3 | 3 |
| 100 | 42 | 48 | 75 | 75 | 75 | 75 | 100 | 65 | 65 | 100 | 65 | 65 |
| 1.25 | 2.5 | 1.25 | 2.5 | 2.5 | 2.5 | 2.5 | 1.25 | 2 | 2 | 2 | 1.23 | 1.23 |
| 90 | 37 | 40 | 73 | 70 | 70 | 70 | 90 | 60 | 60 | 92 | 65 | 65 |
| 0.65 | 1 | 0.65 | 0.5 | 1 | 1 | 1 | 0.3 | 1.5 | 2 | 1 | 0.15 | 0.5 |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| 50 | 50 | 240 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| 1000 | 1000 | 1000 | 800 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 600 | 600 |
| 1.75 | 0.645 | 1.75 | 0.5 | 0.65 | 0.65 | 0.65 | 1.75 | 2.3 | 2.3 | 2.3 | 0.01 | 0.01 |
|
Synchronous Rectification UVLO Adjustable |
Enable | Synchronous Rectification | Enable | Enable | Enable | Enable |
Synchronous Rectification UVLO Adjustable |
Enable Light Load Efficiency Pre-Bias Start-Up Synchronous Rectification UVLO Adjustable |
Enable Light Load Efficiency Pre-Bias Start-Up Synchronous Rectification UVLO Adjustable |
Enable Light Load Efficiency 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) | Constant on-time (COT) | Constant on-time (COT) | Constant on-time (COT) |
