[SOLVED] Single chip buck with programmable voltage and current like LT8613

[prasimix]

I'm searching for a buck regulator (could be controller too) that has programmable voltage and current. The first one shouldn't be a problem but for current it should have something like Imon and Iset/Ictrl pins. In that way I can use MCU's DAC/PWM output to set both voltage and current, and also ADC inputs to monitor them.
Input voltage is 12 VDC, and output should be variable e.g. 1-5 V and up to 4-5 A (max. power 25-30 W). So far I found only one candidate LT8613. It looks fine but its tiny QFN package is not so DIY-friendly or it is? Another possibility is regulator/controller with I2C or SPI bus that can be used for programming and monitoring output voltage and current in above mentioned range.

Thanks in advance!

 

[prasimix]

Got on the another side the following suggestions: LM5117 and LT3741.

 

[asdf44]

It might help to know a little more about the application. Built-in current limits in IC's like that are typically for overcurrent purposes and aren't typically that accurate. Also they may or may not handle the hand-off between V and I modes the way you want. Make sure to dig into that detail if it matters to you.

It's not uncommon to handle V and I separately. For example use a switching buck for V and follow with a current limiting regulator afterward. Or build an outer current loop which can step in and limit voltage.