TI中文支持网The output capacitor is critical in maintaining regulator stability, and must meet the required conditions for both
minimum amount of capacitance and equivalent series resistance (ESR). The minimum output capacitance
required by the LM1117 is 10 µF, if a tantalum capacitor is used. Any increase of the output capacitance will
merely improve the loop stability and transient response. The ESR of the output capacitor should range between
0.3 Ω to 22 Ω. In the case of the adjustable regulator, when the CADJ is used, a larger output capacitance (22-µF
tantalum) is required.
在LM1117的手册中，对于LM1117的电容的最小量和ESR做了限制。 我需要在LM1117的输出端，并联大容量的电解电容。（用于MCU在掉电时，快速存储数据）。对于LM1117的输出电容，我使用大容量的铝电解电容是否可行？1000uf 2000uf的容量甚至再大一些。
Any increase of the output capacitance will
merely improve the loop stability and transient response.
du jianxing：
回复 KW X:
多谢指教。
du jianxing：
回复 xyz549040622:
多谢诸位大师指点。
