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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。
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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 |
| LM53603-Q1 | LM53600-Q1 | LM53601-Q1 | LM53602-Q1 | LM53625-Q1 | LMS3635-Q1 | LMS3655-Q1 |
|---|---|---|---|---|---|---|
| 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 |
| 42 | 42 | 42 | 42 | 42 | 42 | 42 |
| 3.2 | 3.3 | 3.2 | 3.2 | 3.2 | 1 | 1 |
| 9.9 | 9.9 | 6 | 9.9 | 10 | 15 | 15 |
| 3 | 0.65 | 1 | 2 | 2.5 | 3.5 | 5.5 |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 1850 | 1890 | 1890 | 1850 | 1850 | 250 | 250 |
| 2350 | 2400 | 2400 | 2350 | 2350 | 500 | 500 |
| 0.023 | 0.023 | 0.023 | 0.023 | 0.018 | 0.015 | 0.015 |
| Enable Frequency Synchronization Light Load Efficiency Power Good Synchronous Rectification | 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 Synchronous Rectification | Enable Frequency Synchronization Light Load Efficiency Power Good Pre-Bias Start-Up Synchronous Rectification |
| Current Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode |
| 98 | 98 | 98 | 98 | 98 | 98 | 98 |
| -40 to 150 | -40 to 150 | -40 to 150 | -40 to 150 | -40 to 150 | -40 to 150 | -40 to 150 |
| Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive |
| HTSSOP | WSON | WSON | HTSSOP | VQFN-HR | VQFN-HR | VQFN-HR |