Questions tagged [buck]
A non-isolated DC-DC converter topology which outputs a voltage less than or equal to the input voltage.
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Buck Regulator Output is too Small
I'm making a buck regulator using L4970A using circuit from this application note figure 60 , except for the inductor. I change i to 180 uH
I wanna make it to be a power adaptor for laptop with solar ...
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Switching regulator output is unstable
I have a problem in buck regulator. I'm using L4970A to make a buck regulator with a variable output that can be adjusted using a potentiometer.
Output is becoming a ramp when I set the output ...
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Is this normal Buck Regulator behaviour?
I recently got around to trying out buck regulators, my results weren't what I was expecting though. For one the ripple voltage seems a little high to me, It's about 800mV with no load and goes up to ...
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Inexpensive switching regulator with internal inductor & diode
I'm trying to minimize part count and cost of my project. It needs to have a 6V power rail with about 1.5A peak current from a 12V input. I'm shying away from a linear regulator because of the power ...
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Buck Regulator Running From Car Battery Stability Problems
I'm running this regulator off of a ~12V car battery. I've set it up almost identically to the 'typical application' schematic and layout that the datasheet suggests to generate a 5 V output, ...
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How to adjust the voltage of this SMPS?
I bought this kind of module for my led light project. Unfortunately it did not come with instructions.
It can be found from eBay with "3.5-28V to 1.25-26V DC-DC Converter Boost Buck Step Up Step ...
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Accepting a Range of Input Voltage that Straddles Operating Voltage
I want to design a system that runs at 5V and about 350mA. I want that system to accept an input voltage between 1.8V and 15V. How can I achieve that goal with a minimum component cost in my input ...
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Tapped buck converter
I am designing a board which needs 5V and 3.3V rails, at about 1.5A. If I used two buck converters, I would use a lot of board area. So, is there a way to create a multi-output buck converter? I tried ...
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SMPS PCB Design Critic
Oldest versions of this post can be viewed through this link.
This is my re-designed layout. What is your view again?
10-32V to 5V 1.2A SMPS Buck Regulator Design.
The IC is IFX91041 from infineon.
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Calculating size of cap & inductor for buck convertor
What is the idea of choosing inductor & capacitor value for buck DCDC convertors (no specific part number, in general)?
I've tried random one with low resistance, and it kinda works, but want to ...
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Buck converter with feedback loop
According to this site in a buck converter with voltage mode control the duty cycle is set directly by comparing a voltage ramp to an error voltage. I agree with that. But this is where my headache ...
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Critique my SMPS buck design, take 2
After getting some helpful critiques from my original post;
Critique my SMPS buck design
I worked on my design and made a few major changes.
L1: 3.3uH 2A inductor
C1: 10uF 25V ceramic cap
C2: 0....
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Critique my SMPS buck design
I'm using an LM2734 buck regulator to get +3.3V at 400mA. The datasheet is unclear on how to lay out the supply, so I tried to follow some common sense, keeping all power traces short where possible. ...
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