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- LDO design issue - no load condition | Forum for Electronics
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 load conditions to avoid the output voltage creeping upwards due to leakage in the pass transistor In
- LDO with NMOS as pass transistor. . | Forum for Electronics
ldo nmos transistor Embedded 5V to 3 3V voltage regulator for supplying ics in 3 3v CMOS technology IEEE JSSC Vol 33 No 7 July 1998 This is a paper on NMOS pass trans voltage regulator with replica bias
- LDO phase margin? | Forum for Electronics
Hi, I'm designing an LDO and will be using the output as VDD for digital logic In this case, the output current will flow a large current of mA for a short period of time and then no current at all for the remaining long period of time I was wondering if I should adjust the phase margin of
- behavioral modelling for LDO - Forum for Electronics
For a LDO, I think the most important part is the opamp So, only the opamp need to be described with verilog-a language Spectre provide a lot of behavioral module in its ahdlLib and you can find what you want Otherwise, you can build your own verilog-a module by refer to the verylog-a Reference
- operating region of pass element in LDO - Forum for Electronics
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 page, at slide 37, the author considered the power MOS operating in saturation for that calculation Could
- Comparison of LDO and level shifter | Forum for Electronics
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 final voltage
- Design of Current Limiting Circuit in Low Dropout Linear Voltage Regulator
Nowadays, LDO (Low Drop-out) linear voltage regulator has been widely used in portable equipments In order to prevent damage to the IC when an overload is placed or the output of the regulator is shorted, current limiting circuits are usually included in LDO linear voltage regulator [1~3]
- How to properly do AC open loop LDO simulation?
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
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