Need resistors

Joined
Jan 30, 2018
Messages
83
Likes
82
Location
Austria
Portables
2
91k for 1V
33k for 1.15V
2k for 3.3V
360 for 5V

there is a datasheet for the PTH, so you can see some common voltages.
 

BocuD

.
Joined
Jul 21, 2016
Messages
454
Likes
514
Location
The Netherlands
Portables
2
91k for 1V
33k for 1.15V
2k for 3.3V
360 for 5V

there is a datasheet for the PTH, so you can see some common voltages.
Actually using lower resistance resistors is better when taking the voltage drop on the regilators under load into consideration. For example, at 1V you may get a .99v with these resistors, but under load the voltage might drop all the way to .95v which is bad. For stability i recommend going with 70-75k for 1v, around 28k for 1.15 and 1.8k for 3.3v. 3.3v and 5v are less sensitive, so those should be fine with a higher tolerance.
 
Top