All Questions
Tagged with buck switching-regulator
75
questions
3
votes
1
answer
200
views
Inductor magnetic field collapses during switching?
SEE EDITS BELOW
I'm running into some problems with my Buck converter design. During the switching period the inductors magnetic field seems to collapse, which generates some large voltage peaks. That'...
- 33
1
vote
3
answers
194
views
MCU Controlled Buck Converter IC
I am designing for an application where I need a buck converter that takes the voltage from a 2S Li-ion battery (6-8.4 V) and the load I need to drive is 0-6 V and will take 1.2 A max. I need to ...
- 113
1
vote
0
answers
98
views
Input filter for switching regulator
I'm trying to create an input filter for a switching regulator for automotive application.
My aim is to make a supply board, where from 24V come out 12V (from the buck) then 10V and 5V (from two LDOs)....
- 61
0
votes
1
answer
57
views
LC Filter Creates Ripple Voltage in Buck Converter
I'm currently designing a synchronous buck converter and trying to simulate it in LTSpice.
I know the purpose of L1 and C4 is to act as a filter to smooth out the output, since it would be rapidly ...
0
votes
2
answers
153
views
How much current should a switching regulator consume on its own?
With your help on stack exchange, I finally finished assembling my first LM5143QRHARQ1-based buck converter! And it works! It does output 7V (well 7.03V) The only problem is that it consumes around 0....
- 411
2
votes
2
answers
112
views
Is the PCB routing for this LM5143A-Q1-based buck converter right?
Thanks to your advice on StackExchange, I'm in the final stage of developing my first LM5143A-Q1-based (link to datasheet) buck converter! It may be a bit rushed as I need to prepare this for a high ...
- 411
1
vote
1
answer
46
views
Final design considerations for LM5143A-Q1 buck converter. Are these features needed?
After a few days of learning how to make a buck converter using the LM5143A-Q1 TI IC, it's finally becoming a reality! This is the final design, highly inspired from page 30 in the datasheet, some ...
- 411
0
votes
5
answers
391
views
Shielding Buck Converter
I have a simple question, and I want to ensure that nothing unexpected happens. I'm currently working on a Raspberry Pi-based robot project with a Pi camera, and I plan to power it with a battery, ...
- 53
1
vote
1
answer
38
views
How to choose the right type and values of capacitors for LM5143A-Q1 output?
While learning and trying to make my first buck converter using the LM5143A-Q1 (datasheet link) from TI, I calculated the required capacitance at the output for the IC to be able to output 31A, which ...
- 411
2
votes
1
answer
113
views
How to choose the right inductor for buck converter with LM5143A-Q1? (from TI)
While working on my first voltage regulator circuit I got stuck at calculating the inductor value... The IC is LM5143A-Q1 from Texas Instruments, and according to the datasheet, the formulas for ...
- 411
0
votes
1
answer
31
views
How to put the LM5143A-Q1 IC in voltage adjustment mode? (From Datasheet)
I'm trying to make my first voltage regulator circuit using the LM5143A-Q1
Buck IC. The datasheet does include examples and all the values required to get the 3.3/5V fixed output, but it barely has ...
- 411
0
votes
1
answer
39
views
Switching regulator Design
I am designing a switching buck converter from 7.5V to 5V using the AP62200TWU-7 converter.
This converter operates at fSW=750kHz Switching Frequency.
The required output current is around 0.5A.
using ...
- 41
0
votes
0
answers
78
views
Can the MP9488 circuit be operated at 333mA output current?
I am looking to use the MP9488 as a buck Switching Regulator with a voltage output of 12V and output current of 333mA. In the application note it has an output current of 300mA.
As far as I understand ...
0
votes
3
answers
64
views
Current and voltage value before inductor pin in buck converter
In buck converter we know that pure DC current will be after inductor pin. But what will be the current/voltage value before it.
Let’s take an example, the buck converter circuit with 12 V input to 3....
- 543
1
vote
2
answers
670
views
How can I power an ESP32 with a 54V battery using a buck converter?
I need to power an ESP32 board from a 54 V battery. For that purpose, I understand that I need to step it down to 5 V so I need to design a step-down buck converter.
I tried the following circuit ...
- 133