REF3033: adding extra current drive capability externally

Just to be on same page, what I'm expecting is this.

My requirement :I have added new circuitry, new controller in my board. Since REF3033 had output current rating of 25mA, I wanted to increase it by adding an external circuitry. is there a way to do so? if yes, please guide on the circuit.

What you're suggesting is to use a buffer, can you guide me to a part which can give me some idea to follow through.

are you suggesting something like this?

Ok Got it.

Couple of questions:

1. Do i need to add any resistors at the input terminals of opamp ?

2. 

what this statement means? my circuit has bulk capacitances.

3. Also, since REF3033 does not sink current, Will it have any impact on bias currents flowing from OPA, i'm just making an absurd statement as it just crossed my mind, Do we have to focus in this area?

3v3_supply.TSC

1. How to add a pulse current load (to emulate a microcontroller response) in the above file.

2. How to check the response of the output to see overshoot, and other stuff, i mean what analysis to run? please do explain in brief and plot it in simulation file above

please guide...

1. Hello, can you help me with the transient response in the simulation file attached. Please Set the timing and analysis so that i can observe.

3v3_supply - autosave 23-01-06 01_02.TSC

OPA310 doesn't seem to be available anywhere.

2. Can you suggest an equivalent opamp or a better opamp which is available?

3. Also, can i use LMV861MG/NOPB? What are the impacts

Hi Mohammed 

Here is your file. 

REF3033).TSC

10 ohm seriese  resistor may give you huge swing in the output . 

I am transfering this to amplifier forum , they will suggest you correct opamp. 

Hi Amp experts 

We need a buffer which can support upto 100mA load swing for 50uF capacitor with good accuracy. Can you please suggest some opamp. 

Regards 

Trailokya 

Hi Mohammed,

I'm seeing on TI.com we do have a lot of OPA310 stock. Are you looking on TI.com? 

Best Regards,

Robert Clifton 

Our outsource partner buys from mouser / Digi key. 

Questions:

1. As per Trailokya's post above, we need a buffer which can support up to 100mA load swing for 50uF capacitor with good accuracy. So is there a part which can perform this requirement or are suggesting OPA itself will do the work

2.  Also, if you are suggesting an alternate part, suggest a part which can be procured through mouser / Digi key.