Looking for a DC-DC chip that can boost voltage to 24V and output current 2A

Int8

Looking for a DC-DC chip that can boost voltage to 24V and output current 2A [Copy link]

 

I'm looking for a DC-DC chip or module that can boost the voltage to above 24V and output 2A current. It has requirements for size and needs to integrate MOS or inductor. Now I can only find a linear LTM4656 that can meet the requirements, but the price is relatively high and I'm worried about the supply.

Int8

In addition, the input voltage is about 7V

yaoquan5201314

LiQi has a relatively complete range of DC-DC step-up and step-down chips. There should be ones with integrated MOS, but I have never seen ones with integrated inductors. The prices are also relatively affordable.

wangerxian

MPS has this kind of screening and online design software, you can go and see if there are any suitable chips.

https://www.monolithicpower.cn/cn/design-tools/design-tools/dc-dc-designer-online.html

yaoquan5201314

wangerxian posted on 2023-2-22 10:27 MPS has this kind of screening and online design software, you can go and see if there is a suitable chip. https://www.monolithicpower.cn/cn/desig ...

MPS and Lingte both have ICs that require this, but both are quite expensive.

tagetage

24V output current 2A, look at those international manufacturers, it is a bit expensive, but there should be no problem with supply. LTM4656 is also a chip with relatively strong performance and price.

Int8

yaoquan5201314 posted on 2023-2-22 09:30 Liqi has a relatively complete range of DC-DC step-up and step-down chips, which should have integrated MOS. I have never seen integrated inductors, and the price is relatively affordable.

Thanks, I checked, but there is no suitable

wangerxian

We have a current mode boost converter, but the current is too low. MT3608. See if there is a similar type with a higher current.

Int8

wangerxian posted on 2023-2-22 10:27 MPS has this kind of screening and online design software, you can go and see if there is a suitable chip. https://www.monolithicpower.cn/cn/desig ...

MPS has a MP3426 that supports up to 24V 1.77A through this tool

Int8

wangerxian posted on 2023-2-22 10:27 MPS has this kind of screening and online design software, you can go and see if there is a suitable chip. https://www.monolithicpower.cn/cn/desig ...

This tool is very useful, thank you

yaoquan5201314

Int8 posted on 2023-2-22 13:10 Thank you, I looked but there is no suitable one

Oh, I asked an agent of power IC this morning, and he said that there should be no DC-DC boost IC with such a large current in China, and it is estimated that only MPS and Lingte have it.

wangerxian

Int8 posted on 2023-2-22 13:22 This tool is very useful, thank you

It's OK, but I don't know if the price is right for you.

Int8

wangerxian posted on 2023-2-22 14:36 You can use it, but I don’t know if the price is suitable for you.

The price of mouser is about 20 yuan, which is very cheap compared with LTM4656. The current needs to be further studied.

wangerxian

Int8 posted on 2023-2-22 15:28 The price of mouser is about 20 yuan, which is very cheap compared with LTM4656. The current needs to be further studied

Haha, OK, I'm glad I could help you~