Overheating Protection for the XL6009E1 Voltage Regulator

[deavisss]

Hello everyone
I'm researching the XL6009E1 voltage regulator, but I haven't tested it yet, and I'm concerned about overheating. I've read that it's a fairly efficient step-up regulator, but I also read that it can generate heat depending on the load and heat dissipation.

My main question is: Does this regulator have overheating protection? I've looked for information on this, but there seems to be very little.
If anyone has experience with this module, I'd love to know. Thank you.

 

[FvM]

This kind of questions is answered in a datasheet.

https://www.sunrom.com/download/Sunrom-XL6009E1.pdf

It tells about thermal shutdown function

 

[D.A.(Tony)Stewart]

Thermal Resistance (TO263-5L) (Junction to Ambient, No Heatsink, Free Air) RJA 30 ºC/W
Vin=12V ,Vout=18.5V, Iout=2A 92 %

From the datasheet 8% loss, if assumed all in IC, only at this setting;
Pout = 18.5V*2A= 37W , 40.2Win, = 3.2W loss * 30ºC/W = 96 ºC rise above 25ºC , then Tj =121ºC

It does not say but assumes reasonable thermal design with thermal vias and Cu weight + area. If you want it to run cooler for reliability, use a thermal tape and mount to a CPU heatsink or metal chassis or https://www.google.com/search?q=TO263-5L+heatsink&num=10

Knowing that the stored energy is higher than the output power per second, you need to pay attention to soft start power surges charging up any caps.

100 uF @ 20 V = 20 e-3 J = 20 W*ms Thus is startup is 10 ms then at constant power in with no load, it averages only 2 W for 10 ms but if it charges up in 1 ms , it may be stressed with an external load as well. So soft start is essential.