Replacement for L200CV adjustable current-limiter / voltage regulator

Other Hardware General Electronics
1

Hi everybody,

recently I wanted to buy some L200CV which are adjustable voltage-regulators with a current-limit function.
What I like about the L200CV is: connect 3 resistors and
voltage and current-limit is adjusted - done - ready to use

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But his component is out of production. Sure at some onlineshops they are still available but I would prefer to use a component that is in production.

Digikey sugested this components

But this is a buck-converter which requieres quite some external components. I highly prefer a 1/10-inch spaced pin-housing like DIP or TO220 over non-1/10-inch-pins.

It has some kind of overcurrent-protection but it seems not a adjustable current-limiting like the L200CV

If you know about a still in production component or breakoutboard
with adjustable current-limiting please post a type-number or a link.

best regards Stefan

2

I doubt that nowadays you'll still find any linear U/I regulators.

3

Well if it is a pretty compact DC-DC-stepdown-regulator on a small PCB with all components soldered onto the PCB I am satisfied with this too.

4

Did you forgot about the large the heatsink. And the >2volt dropout voltage.

These modules have all the protections, are smaller than the L200, and don't get as hot.
Leo..

5

@Wawa

I am not looking for a maximum current-protection
I am looking for an adjustable current-limit

This module can do max. 600mA.
But where is the possability to adjust the current-limit to

  • 100 mA?
  • 50 mA ?
  • 20 mA ?
  • 5 mA ?

This means when ever a load with small resistance (that what is would cause a high current at usual voltage levels like 5V)
is connected
the regulator shall regulate the voltage down that the user-adjusted current-limit of 5 mA is not exceeded.

In case of a 100 m loooong thin copper-wire which has a pretty low resistance of maybe 2 Ohms.

This would mean the regulator is able to regulate down the voltage to 0,01 V to not exceed the current limit of 5 mA

I am searching for a voltage-regulator with user-adjustable current-limit

best regards Stefan

6

Adjustable voltage and current boards are available on all the big sites (ebay etc.)
They all have two trim pots. One for voltage and one for current.
Leo..

7

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