How to convert 5V to 12V with 750mAh ?

[nikhilele]

5v to 12v discrete

I have a battery backup system with 6V SLA(lead acid) battery,
But few ckts work on 12V which are used rarely. but they are important.
so how do i get it.

I know I need step-up DC-DC converter
I will be glad to know the chips and links to their datasheets.

 

[IanP]

5v to 12v

Here is one of options:

"A simple step-up converter (6V to 12V)"
https://www.electronics-lab.com/projects/power/030/

Regards,
IanP

 

[nikhilele]

750mah 5v battery

is this possible without inductor.

 

[IanP]

Re: 5V to 12V with 750mAh

The power can be converted without inductors, see publication "DC/DC Conversion without Inductors"at:
**broken link removed**
However, the main drawback of this type of conversion is small output current, usually much below 200mA ..

Regards,
IanP

 

[nikhilele]

5V to 12V with 750mAh

Thank you for your reply sir, this I have already gone through.
so our conclusion is we have to use inductor base step up convertor.

can any one suggest me more IC's

 

[IanP]

Re: 5V to 12V with 750mAh

LM2577
LM2586
LM5000
**broken link removed**
MAX761
MAX762
**broken link removed**
and so on .. or, you can build dc-dc converter using discrete components:
http://www.aaroncake.net/circuits/6-12conv.htm

Regards,
IanP

 

[nikhilele]

Re: 5V to 12V with 750mAh

i have selected

MAX608
MAX771
MAX772
MAX1771

 

[nikhilele]

5V to 12V with 750mAh

MAX608
MAX771
MAX772
MAX1771

these chips are costly and not easily available
So I finally selected MC34063