LDO design for CAP + resistive loads - Forum for Electronics
Jul 13, 2018 · 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.
[SOLVED] - Slewing and Overshoot in LDO during Powerup
Mar 27, 2011 · Hi, I have a three stage LDO with an external capacitor and PMOS pass device. During Power up, the external capacitor has to be charged up and hence the Pass device is fully ON, i.e., …
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.
operating region of pass element in LDO - Forum for Electronics
Mar 8, 2012 · I am really confused. What is the operating region of pass element in LDO (Low Dropout Linear Regulator)? I see a lot of documents saying that it operates in linear mode. However, in this …
[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...