FAQ
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常見問答
NuMicro®家族晶片內部的LDO(Low Dropout Regulator)是否需要外接電容? 日期:2015-09-25
為了穩定晶片內部LDO的輸出電壓,在LDO的輸出腳位LDO_CAP需要外接一個電容,並且電容的位置需要靠近LDO_CAP腳位。如果晶片型號有多個LDO的輸出腳位,每個LDO的輸出腳位都需要外接電容。
依NuMicro®家族不同的晶片系列,LDO_CAP外接的電容值有不同的要求,請參考下表:
NuMicro® Family Series |
Minimum Value of an External Capacitor |
Mini51 Series |
Do not need an external capacitor. |
Mini58 Series |
Do not need an external capacitor. |
M051 Series |
1 uF |
M0518 Series |
1 uF |
NUC029xAN Series |
1 uF |
NUC029FAE Series |
Do not need an external capacitor. |
NUC100/120 Series |
1 uF |
NUC130/140 Series |
1 uF |
NUC122 Series |
10 uF |
NUC123 Series |
1 uF |
NUC131 Series |
1 uF |
NUC200/220 Series |
1 uF |
NUC230/240 Series |
1 uF |
Nano100 Series |
10 uF |
Nano1x2 Series |
1 uF |
NUC442/472 Series |
1 uF |
M451 Series |
1 uF |
NUC505 Series |
4.7 uF |
除此之外,LDO_CAP可以再外接0.1uF的旁路電容(bypass capacitor)濾除高頻雜訊。
產品: | 微控制器 ,Arm Cortex-M0 微控制器 ,M051 系列 ,M0518 系列 ,M0519 系列 ,Mini51 系列 ,Nano100 / 102 系列 ,Nano110 / 112 LCD 系列 ,Nano120 USB 系列 ,Nano130 USB+LCD 系列 ,NUC029 系列 ,NUC100 / 200 系列 ,NUC120 / 122 / 123 / 220 USB 系列 ,NUC130 / 230 CAN 系列 ,NUC131/NUC1311 CAN 系列 ,NUC140 / 240 USB+CAN 系列 ,Arm Cortex-M4 微控制器 ,M451 Base 系列 ,M451M 系列 ,M452 USB 系列 ,M453 CAN 系列 ,NUC442 / 472 系列 ,NUC505 系列 |
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應用: | |
功能: | Peripherals,Power Detection,LDO |