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 …
The size of pmos pass transistor in LDO regulator
May 12, 2006 · pmos pass transistor saturation ldo when pass transistor operates in triode region the loop gain will decrease drasticly.In order to get a reasonable gain error, make sure the …
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 …
[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...
Reference Voltage for LDO - Forum for Electronics
Aug 7, 2024 · 1. Power supply = 1.8, LDO output put = 1.2V and max current load =100ma 2. Power supply = 1.8, LDO output put = 0.7V and max current load =10ma For these LDO's how …
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 with NMOS as pass transistor.. | Forum for Electronics
Oct 18, 2004 · The NMOS pass transistor LDO is has a single pole roll-off characteristics.The gate of the NMOS pass transistor needs to be decoupled with capacitance to reduce the …
How to measure psrr of LDO? | Forum for Electronics
Sep 24, 2008 · how to measure psrr hi,all. Can anybody suggest me how to measure psrr of LDO? Could anybody suggest the ways and the required instruments I need to use? Thanks a …
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. …
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 …