L7987 and L7987L substitued parts

[PZha.1]

HI Sir,

we have applied L7987 and L7987L on our touch display computer,

we don't have enough stock for now

is there any substitued parts available

thanks�?

With best regards，

PZ​

[Peter BENSCH]

The L7987 (3A) and L7987L (2A) can be used up to 61V input voltage and unfortunately do not have an alternative type.

If the problem is solved, please mark this thread as answered by selecting Select as best, as also explained here. This will help other users find that answer faster.

Regards

/Peter

[PZha.1]

Hi Sir,

can we use A7987 as alternative.

thanks!

PZ

[Peter BENSCH · Accepted solution]

The A7987 is functionally identical to the L7987. However, it is more expensive because of the automotive approval, so I did not consider it. If you accept the higher price, you can of course also use the A7987.

Regards

/Peter

[PZha.1]

HI Peter,

thanks for your conformation.

with best regards,

PZ

[Peter BENSCH]

Great!

If the problem is solved, please mark this thread as answered by selecting Select as best, as also explained here. This will help other users find that answer faster.

Good luck!

/Peter

[PZha.1]

HI Peter，

could you please advise that how to select the resistors for the voltage setting, 

are the resistor volume same for L7987, L7987L and A7987 voltage setting.

thanks.

with best regards,

PZha

[PZha.1]

for example: output 5V,

60.4K and 11K,=5.19V

43K and 8.2K =4.99V
6.04K and 1.1K=5.19V
3K and 0.56K=5.08V

which one is more suitable. any difference