Hi OMG,
The layout looks fine.
Here's what I'm thinking. The junction temperature for the LM317-N, from your measurement, is estimated to be 76C + 2W * 10.4C/W = 97C, and if your board was similar in thermal performance to the JEDEC High-k board from…
Part Number: LM317-N Hi team,
My customer is considering to use LM317EMP/NOPB. I think that this device allow ceramic capacitor. Is my understanding correct?
Cin : 1uF Ceramic capacitor
Cout : 4.7uF Ceramic capacitor
Vin : 12V
Vout : 7.5V (R1=240ohm, R2…
Other Parts Discussed in Thread: LM317-N , TPA6120A2 , TPS7A33 24V input, two LM317-N can output -12V？
I want to drive the earphone with tpa6120a2, its power supply needs =-12V,
So, is there a reference circuit?
Part Number: LM2940-N Other Parts Discussed in Thread: TPS7A47 , TPS7B86-Q1 , LM317 Tool/software: Hello, I am currentling using LM2940T-5 for my design.How can I increase the output voltage by 200 mv? I tried using a resistive divider connected between…
Part Number: LM317-N Other Parts Discussed in Thread: LM317 Can someone help me to get the updated 197 SVHC reach statement for the texas instrument component LM317T/NOPB??
In advance thank you for your help and support.
Best Regards.
Gabriel
Part Number: LM317-N Dear Specialists,
My customer is considering LM317-N and has a question.
I'd like to get your advice for him.
---question
According to the datasheet of LM317-N (P.14) of 8.4.2 Protection Diodes, it says, for output capacitors…
Hello Shotaro,
1. LM317 is a really old device so datasheet requirements might have been different at that time, therefore, detailed information is not included. The current limit characteristics can be found on the Electrical Characteristics table shown…
Hi Emma,
I looked at the different datasheets for the LM317.
Here is the dropout from the LM317L-N (100mA)
And here it is for the LM317M (500mA version)
And here it is for the LM317-N
There is some variation, but we can see that in general Vdo decreases…
Other Parts Discussed in Thread: LM317-N Hi, When I using the LDO product filter, The noise of LM317-N shows as 35 uVrms only. ..... I have no idea if a 40yo device has 35 uVrms performance, what does "ultra low noise" really mean? (ps. TPS78630…
Part Number: LM337 Other Parts Discussed in Thread: , TPS7A39 , , LM317
I am trying to add current limiting to the previously submitted design by adding LM317 and LM337 regulators in current-limiting mode. Both simulate nicely standalone but don't deliver…
