Part Number: TPS40180 Hi Support team
My customer used TPS40180 for 4phase 5V DC/DC synchronous buck converter with 12V input voltage.
The output current is 90A with over current spec 110-130A. Now, we have problem as below.
The converter can take loading…
Part Number: TPS40180 Hi,
I use TPS40180 4 phase for buck 12V to 5V .
I found master IC shutdown when surge 2kV tested.
Please give us some suggestions for protect, thanks.
Part Number: TPS40180 Hi, I am trying to use 4 x tps40180 parallel for high current application (like datasheet page 22 ), but I have problem about the PSEL setting.
Condition 1:
Master PSEL: OPEN=8 phase CLKIO
Slave1 PSEL: 14.7Kohm=90 degree
Slave2 PSEL…
Part Number: TPS40180 Other Parts Discussed in Thread: TPS40140 , I'm looking for a solution to control the output voltage (or current by design as current source) as simple as possible and in a linear way. The output stage must be parallelized (50A maximum…
Part Number: TPS40140 Other Parts Discussed in Thread: TPS40180 I have a three channel buck converter design having TPS40140 and TPS40180 (12V to 1V2). First channel in TPS40140 is master and others are in slave mode. output voltage measured (after inductor…
Other Parts Discussed in Thread: TPS40140 , TPS40180 Hello
Could you tell me why R1 is calculated by equation 15? (datasheet page 19)
Best Regards,
Junichi Yamamoto
Kurt,
The circuit looks correct. Verify that the OP-AMP selected can pull the ouptut low enough to hold the SS pin at 0.75V with the soft-start current forced across the diode. We need a pretty low minimum output voltage on the Op-AMP. If you need…
While I do not support LM5117-Q1 directly, I can make some comments.
Generally speaking, you cannot just tie the two outputs together. Usually the load currents will not be balanced. One converter will tend to run towards current limit. There are…
Here are the controllers that meet your criteria:
LM25141 - Low Iq, Wide Input Range Synchronous Buck Controller
3.8
42
1.5
15
20
1
1
350
2600
0.035
Adjustable Current Limit, Enable, Frequency Synchronization, Light Load Efficiency, Power Good, Pre…