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数据: LMR14020-Q1 SIMPLE SWITCHER® 40V、2A 降压转换器(IQ 为 40µA) 数据表 (Rev. A)
LMR14020-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,2A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非稳压电源的电源调节。其扩展系列产品能够以引脚到引脚兼容封装提供3.5A和5A电流选项,其中包括LMR14030-Q1和LMR14050-Q1。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。并且在关断模式下具有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燥工作。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特性:逐周期电流限制保护,应对功耗过大的热感测和热关断保护以及输出过压保护。
LMR14020-Q1采用带有外露焊盘的8引脚HSOIC或10引脚WSON封装,用于实现低热阻。
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 |
LMR14020-Q1 | LM22672-Q1 | LM22680-Q1 | LM43601-Q1 | LM43602-Q1 | LM53602-Q1 | LMR23615-Q1 | LMR23625-Q1 | LMR23630-Q1 | TPS54240-Q1 |
---|---|---|---|---|---|---|---|---|---|
4 | 4.5 | 4.5 | 3.5 | 3.5 | 3.5 | 4 | 4 | 4 | 3.5 |
40 | 42 | 42 | 36 | 36 | 42 | 36 | 36 | 36 | 42 |
1 | 1.285 | 1.285 | 1 | 1 | 3.2 | 1 | 1 | 1 | 0.8 |
30 | 37 | 37 | 28 | 28 | 9.9 | 28 | 34 | 34 | 39 |
2 | 1 | 2 | 1 | 2 | 2 | 1.5 | 2.5 | 3 | 2.5 |
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
200 | 200 | 200 | 200 | 200 | 1850 | 200 | 200 | 200 | 100 |
2500 | 1000 | 1000 | 2200 | 2200 | 2350 | 2200 | 2200 | 2200 | 2500 |
0.04 | 3.4 | 3.4 | 0.033 | 0.027 | 0.023 | 0.075 | 0.075 | 0.075 | 0.138 |
Enable Frequency Synchronization Light Load Efficiency Power Good Pre-Bias Start-Up Spread Spectrum Tracking UVLO Adjustable | Enable | Enable Frequency Synchronization | Enable Frequency Synchronization Light Load Efficiency Power Good Synchronous Rectification Tracking | Enable Frequency Synchronization Light Load Efficiency Power Good Synchronous Rectification Tracking | Enable Frequency Synchronization Light Load Efficiency Power Good Synchronous Rectification | Enable Frequency Synchronization Light Load Efficiency Pre-Bias Start-Up Synchronous Rectification UVLO Adjustable | Enable Frequency Synchronization Light Load Efficiency Synchronous Rectification | Enable Frequency Synchronization Light Load Efficiency Synchronous Rectification | Enable Frequency Synchronization Light Load Efficiency Power Good Tracking UVLO Adjustable |
Current Mode | Voltage Mode | Voltage Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode | Current Mode |
98 | 90 | 90 | 99 | 99 | 98 | 97 | 99 | 99 | 100 |
-40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 150 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive | Automotive |
SO PowerPAD WSON | SO PowerPAD | SO PowerPAD | HTSSOP | HTSSOP | HTSSOP | SON | SO PowerPAD SON | SO PowerPAD SON | MSOP-PowerPAD VSON |