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- cascode structure for PSRR improvement in Bandgap and LDO
So in my opinion, having a cascode folded-cascode EA will simply boost the EA's open loop gain, thus improving the overall PSRR of your LDO I prefer to over-design my EA with very high open loop gain and then have an easier time working with my LDO's PSRR later on Another common method to improve your PSRR is to use an N-MOS pass transistor instead of a P-type one However, this requires and
- 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
- The size of pmos pass transistor in LDO regulator
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 loop gain is larger than 60db even at worse case
- Pass transistor in LDO - Forum for Electronics
What should be the pass transistor design for optimum design The Mos should be in CG state or CS or CD Usually PMOS will be used in CG form WHat happens
- 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
- 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 measure quiescent current of LDO? | Forum for Electronics
hello how to measure quiescent current of LDO? should i simply set Iload to 0A and measure current flowing from vdd? the second thing is on what voltage conditions should i measure it, cause i don't have fixed output, but programmable intuition says to measure it on all voltage, temperature
- 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
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