Other Parts Discussed in Thread: TPS797-Q1,
Hi Team,
My customer has a qustion.
Q1.
Datasheet P10 7.3.1 Adjustable Operation section has the following description.
"The adjustable device is tested and specified with the FB pin tied to the OUT pin and
a 1 mA - DC load (unless specified specified) for an output voltage of 1.275 V. "
At present, the output current is as low as 0.1 mA,
The FB resistance value is made small to flow 1 mA.
Does the power supply output have to be 1 mA or more?
I would like to increase the FB resistance as much as possible.
Example:High side resistance is 2.082 mohm Low side resistance: 220 kΩ
Also, when setting FB resistance high, how much should Feedforward Capacitor be set?
Q2.
Although the recommended value of the output capacitor is 1 μF or more,
Since the output current is quite low this time (Iout = 0.1 mA) this time,
Is it OK to change to 1 uF or less?
Please tell me the minimum value of Cout.
Q3
Answer to the following questions is not mandatory.
Datasheet P 12 7.4.1 Questions about Low-Voltage Tracking.
The Low-Voltage Tracking function,
How long (Delay) will it operate after the input voltage drops below the output voltage
Best Regards,
-watanabe