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数据： LM53603-Q1 (3A)、LM53602-Q1 (2A) 面向汽车类应用的 3.5V 至 36V 宽 VIN 同步 2.1MHz 降压转换器 数据表 (Rev. A)
LM53603-Q1，LM53602-Q1降压稳压器专为汽车类应用而设计，可通过最高36V的输入电压提供5V /3A或3.3V /2A（通过ADJ选项选择）输出。当输入电压高达20V时，该器件可利用高级高速电路得以稳压，同时以2.1MHz的开关频率提供5V输出。该器件采用创新型架构，在输入电压仅为3.5V时也可提供3.3V稳压输出。该产品针对汽车客户进行了全方位优化。器件的输入电压最高可达36V，容许的最高瞬态电压达42V，这简化了输入浪涌保护设计。开漏复位输出具有滤波和延迟功能，可提供正确的系统状态指示。凭借这一特性，器件无需使用附加监控组件，这节省了成本和电路板空间。该器件可在PWM和脉频调制（PFM）两种模式之间无缝切换，并且无负载条件下的工作电流仅为24μA，这确保了其在所有负载条件下均可展现高效率和出色的瞬态响应。
<小>所有商标是其相应所有者的财产。
| 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 |
| LM53602-Q1 | LM22680-Q1 | LM26001-Q1 | LM26003-Q1 | LM53600-Q1 | LM53601-Q1 | LM53603-Q1 | LM53625-Q1 | LMR14020-Q1 | LMS3635-Q1 | LMS3655-Q1 | TPS54240-Q1 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3.5 | 4.5 | 3 | 3 | 3.5 | 3.5 | 3.5 | 3.5 | 4 | 3.5 | 3.5 | 3.5 |
| 42 | 42 | 38 | 38 | 42 | 42 | 42 | 42 | 40 | 42 | 42 | 42 |
| 3.2 | 1.285 | 1.25 | 1.25 | 3.3 | 3.2 | 3.2 | 3.2 | 1 | 1 | 1 | 0.8 |
| 9.9 | 37 | 35 | 35 | 9.9 | 6 | 9.9 | 10 | 30 | 15 | 15 | 39 |
| 2 | 2 | 1.5 | 3 | 0.65 | 1 | 3 | 2.5 | 2 | 3.5 | 5.5 | 2.5 |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 1850 | 200 | 150 | 150 | 1890 | 1890 | 1850 | 1850 | 200 | 250 | 250 | 100 |
| 2350 | 1000 | 500 | 500 | 2400 | 2400 | 2350 | 2350 | 2500 | 500 | 500 | 2500 |
| 0.023 | 3.4 | 0.038 | 0.04 | 0.023 | 0.023 | 0.023 | 0.018 | 0.04 | 0.015 | 0.015 | 0.138 |
| Enable Frequency Synchronization Light Load Efficiency Power Good Synchronous Rectification | Enable Frequency Synchronization | Enable Light Load Efficiency Power Good Pre-Bias Start-Up | Enable Light Load Efficiency Power Good Pre-Bias Start-Up | Enable Forced Pulse Width Modulation (FPWM) Mode Frequency Synchronization Light Load Efficiency Power Good Synchronous Rectification Wettable Flanks Package | Enable Frequency Synchronization Light Load Efficiency Power Good Synchronous Rectification | Enable Frequency Synchronization Light Load Efficiency Power Good Synchronous Rectification | Spread Spectrum Synchronous Rectification | Enable Frequency Synchronization Light Load Efficiency Power Good Pre-Bias Start-Up Spread Spectrum Tracking UVLO Adjustable | Enable Frequency Synchronization Light Load Efficiency Power Good Pre-Bias Start-Up Synchronous Rectification | Enable Frequency Synchronization Light Load Efficiency Power Good Pre-Bias Start-Up Synchronous Rectification | Enable Frequency Synchronization Light Load Efficiency Power Good Tracking UVLO Adjustable |
| Current Mode | Voltage Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode |
| 98 | 90 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 100 |
| -40 to 150 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 150 | -40 to 150 | -40 to 150 | -40 to 150 | -40 to 125 | -40 to 150 | -40 to 150 | -40 to 125 |
| Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive |
| HTSSOP | SO PowerPAD | HTSSOP | HTSSOP | WSON | WSON | HTSSOP | VQFN-HR | SO PowerPAD WSON | VQFN-HR | VQFN-HR | MSOP-PowerPAD VSON |
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