LDO design for CAP + resistive loads - Forum for Electronics
3 days ago · Hi All, Greetings! I am starting to design an LDO for the first time, and a few questions have come to my mind. I would appreciate your valuable advice on the following points: In systems …
The size of pmos pass transistor in LDO regulator
May 12, 2006 · simulate the output impedance of ldo regulator Is your pass transistor working all the time in triode region ? It would be a big trouble if you have it working at triode and saturation as well. …
LDO design issue - no load condition | Forum for Electronics
Mar 27, 2019 · Hi I am working on a LDO design that requires a rather large PMOS pass transistor due to the specified max current. I have issues with pulling the pass transistor gate high enough at no …
Comparison of LDO and level shifter | Forum for Electronics
Jan 27, 2012 · Re: LDO vs Level shifter Yes, although if good efficiency and good noise performance were required, I would use a switcher to drop most of the voltage then use the LDO to regulate to the …
PTAT current source vs LDO to bias a ring oscillator for PVT ...
Apr 22, 2024 · I'm looking to minimize the frequency variation of an on-chip ring oscillator running at 2MHz, through using either an LDO as its supply voltage, or current-starving it with a current coming …
Why PMOS used in LDO more than NMOS? | Forum for Electronics
Feb 2, 2005 · nmos ldo compensation but in Low Drop-Out Regulator, Pmos is used to achieve lower voltage drop. how can Pmos do that other than Nmos?it seems that lower Ron is not the reason.
How to improve LDO's transient response? | Forum for Electronics
Apr 2, 2006 · ldo frequency and transient response Some commercial chips like TI's add comparators to control overshoot and undershoot. When undershoot is detected, sourcing current will be increased …
What is the function of buffer in LDO? | Forum for Electronics
Mar 8, 2012 · I don't understand the function of buffer in LDO. Could anyone explain it? Why adding buffer will help to improve power supply ripple rejection?
How to properly do AC open loop LDO simulation?
Oct 21, 2005 · how to do ac analysis of ldo another way is add a large inductor on you feedback path, and a capacitor connect to ground from opamp side. this may help you to do AC simulation.
[SOLVED] - Input Power source selection for ESP32(LDO)
May 11, 2025 · I need Help in a circuit for power selection for esp32 i have 2 options 1)USB_C 5v 2)Battery 4.2V I need circuit in which USB is first priority mean if 5v...