Using TLV75533PDBVR for powering ADC
I will be using this ADC in my design. It has two power rails AVDD and DVDD.
I am planning to use Two TLV75533PDBVR will be used one for AVDD and other for DVDD.
May I know this LDO is good choice for this ADC ?
In the reference design they used ADM7155 which is very costly.So decided to use other one.
The reference design schematic is given below.
Below is my circuit with TLV75533PDBVR:
1 answer
Yup, it's an LDO. Pretty much any will do. This has the two things you most care about, assuming the basic conditions are met:
- It is stable with 0 ESR output cap. Most are these days, but there are still old ones out there meant for tantalum output caps. You can put a few µF right at the LDO, and another few right at the point of use.
- The power supply rejection spec seems decent enough.
If you really need a clean supply, you can still add one or two stages of series ferrite chip inductor with cap to ground in front of the LDO.
This particular LDO has lots of bells and whistles. They do you no harm as long as the price is competitive.
There are many many LDOs out there. Congratulations! You found one of them.
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