Other Parts Discussed in Thread: LM7800 Hello everyone!
I am working on a project and am looking at some regulators. I have found the two mentioned in the title on Digikey. The 33DCYR had a datasheet attached, but the 7805MP did not. I went to the main…
Other Parts Discussed in Thread: LM7800 , LM1084 , LM1085 , LM1086 , TPS7A80 , TPS7A92 , TPS7A52 Please introduce an LDO with input voltage of 5.5V, output voltage of 5V, output current of about 1.5A to 2A, low noise and fast transient response.
Hi Jack,
voltage regulators providing a bipolar supply voltage can behave very strange during power-up and power-down, if unequal supply currents are drawn from the both supply voltages. This can make the positive supply voltage become negative or the…
Sato-san,
Thank you for running the checks I described. The results indicate that the odd voltage -12.6 V appearing at the non-inverting input is not a normal linear circuit behavior. I think that Kai is correct and the observed behavior is an input…
also, just FYI, the basic LM7812 datasheet is here: http://www.ti.com/lit/ds/symlink/lm7800.pdf , although the 'H' and 'K' designations do not appear in this version.
~Leonard
Hi Syed,
When selecting a linear regulator, you first need to determine what your input voltage will be, your output voltage, and your load current. Based on your description, you have an output voltage of 5 V.
It looks like you are considering…
Hi Amelie,
Please see my response below,
The 1uA shutdown current is the current drawn by the LM74700-Q1 IC. This is not the load current but only the current which flows out of the GND pin of the LM74700-Q1 IC. Please understand that LM74700-Q1…
