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数据： LMR14050-Q1 SIMPLE SWITCHER® 40V、 5A 降压转换器（IQ 为 40µA） 数据表 (Rev. A)
LMR14050-Q1器件是一款集成高侧金属氧化物半导体场效应应晶体管（MOSFET）的40V，5A降压稳压器。该器件的宽输入电压范围为4V至40V，适用于调节从工业到汽车等各类应用中的非稳压电源。该稳压器在休眠模式下的静态电流为40μA，非常适合电池供电类系统。在关断模式下具有1μA的超低电流，可进一步延长电池使用寿命。该稳压器的可调开关频率范围较宽，这使得效率或外部元件尺寸能够得到优化。内部环路补偿意味着用户不用承担设计环路补偿组件的枯风工作。并且还能够以最大限度减少器件的外部元件数。精密使能输入简化了稳压器控制和系统电源排序。此外，该器件还内置多种保护功能：逐周期限流保护，应对功耗过大的热感测和热关断保护以及输出过压保护。
LMR14050-Q1采用焊盘外露的8引脚HSOIC封装，实现低热阻。
| 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 |
| LMR14050-Q1 | LM22677-Q1 | LM73605-Q1 | LM73606-Q1 | LM76002-Q1 | LM76003-Q1 | LMS3635-Q1 | LMS3655-Q1 |
|---|---|---|---|---|---|---|---|
| 4 | 4.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 |
| 40 | 42 | 36 | 36 | 60 | 60 | 42 | 42 |
| 1 | 1.285 | 1 | 1 | 1 | 1 | 1 | 1 |
| 30 | 37 | 34 | 34 | 57 | 57 | 15 | 15 |
| 5 | 5 | 5 | 6 | 2.5 | 3.5 | 3.5 | 5.5 |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 200 | 200 | 350 | 350 | 300 | 300 | 250 | 250 |
| 2500 | 1000 | 2200 | 2200 | 2200 | 2200 | 500 | 500 |
| 0.04 | 3.4 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 |
| Enable Frequency Synchronization Light Load Efficiency Power Good Pre-Bias Start-Up Spread Spectrum Tracking UVLO Adjustable | Enable Frequency Synchronization | Enable Forced Pulse Width Modulation (FPWM) Mode Frequency Synchronization Light Load Efficiency Over Current Protection Power Good Pre-Bias Start-Up Synchronous Rectification Wettable Flanks Package | Enable Forced Pulse Width Modulation (FPWM) Mode Frequency Synchronization Light Load Efficiency Over Current Protection Power Good Pre-Bias Start-Up Synchronous Rectification UVLO Fixed Wettable Flanks Package | Enable Forced Pulse Width Modulation (FPWM) Mode Frequency Synchronization Light Load Efficiency Power Good Synchronous Rectification Wettable Flanks Package | 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 Pre-Bias Start-Up Synchronous Rectification | Enable Frequency Synchronization Light Load Efficiency Power Good Pre-Bias Start-Up Synchronous Rectification |
| Current Mode | Voltage Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode |
| 98 | 90 | 96 | 96 | 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 |
| Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive |
| SO PowerPAD WSON | TO-263 | WQFN | WQFN | WQFN | WQFN | VQFN-HR | VQFN-HR |
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