TL431: CL value when used as shunt regulator

Given Ding

Part Number: TL431

Hi Team,

There is below figure in datasheet which recommend stable area. So just want to check

1. which area is your recommendation? Is there any difference working in these two areas, such as vref accuracy / noise?

2. Is it OK to use CL=1uf or CL=0.

Thanks.

0 Marcoo Z over 5 years ago

Hi Given,

1. There is no difference between accuracy or noise between at the device level.

2. CL = 0uF is ok. CL = 1uF is not ok.

0 Given Ding over 5 years ago in reply to Marcoo Z

Hi Marcoo,

Thanks.

Then how about CL=1nf？

BRs

Given

0 Marcoo Z over 5 years ago in reply to Given Ding

Hi Given,

1nF will work.

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