can i use this driver (https://www.amazon.de/580-600mA-kon...p_3?ie=UTF8&psc=1&refRID=TH59KDA8YB8H9VHCRB4H)
i want to use this to power IR-Diodes (max 700mA) ...
thanks for answering
with the lm317 driver, i cant use 5V for Input ... i only have 5V (max. 3A) and i would not use a step up converter - brrrrrrr :yh:
space/heat is no issue (for the driver i have ~ 30x40mm) - a clean output and protecting the laserdiode is most importantly
lm317 minimum dropout varies a bit with operating current and junction temperature, but is commonly quoted as 3.5V. This is not enough to drive a 2V load from 5V.
If the 5V source is voltage regulated (most are), you may want to consider a simple power resistor to limit the current and drive your laser diode. >3W 5ohm in series with the diode would be fine.