LT8625S
Recommended for New Designs
The LT8625S synchronous step-down regulator features
third-generation Silent Switcher technology which is
uniquely designed to combine an ultralow noise...
Datasheet
LT8625S on Analog.com
Hello,
This is Kwonjoon Lee from South Korea.
I would like to ask about LTspice simulation result of LT8625S.
(Situation)
1. Vin = ~16V, Vout = ~10V, Load Current = ~1.5A
2. Vin of LT8625S is implemented with the ideal voltage source.
(Ideal bypassing capacitor corresponding to 50uF is connected to the ideal voltage source in parallel)
3. There is a huge (and periodic) current spike (~8A, width = ~250ps) component in the input current which is measured at the ideal voltage source.
4. My switching frequency is about 1.34MHz.
(Question)
1. Should I connect multiple high-frequency bypass capacitors (10pF x m) to the input of LT8625S in a real schematic?
(But, in the datasheet, there is no recommendation)
Best regards,
Kwonjoon Lee
