Dear all,
Our customer is considering using TLV1117.
According to the data sheet, it is described that an electrolytic capacitor having an ESR of 0.2Ω to 10Ω is used for stable operation as follows.
However, our customers are considering using low ESR ceramic capacitors (connecting ESR resistors in series) to the output capacitor from the viewpoint of life, size and cost.
Could you tell me the following contents?
1. When a low ESR ceramic capacitor is connected to the output capacitor (an ESR resistor is connected in series),
is the required capacitance for stable operation about 100 μF as shown in the following circuit diagram?
2. Regarding the resistance value of the ESR connected to the ceramic capacitor, is it necessary to set the resistance to 0.2 to 10Ω as described in the data sheet together with the ESR of the ceramic capacitor in order to stabilize the operation?
Best Regards,
Y.Ottey