Part Number: LMR14020
Dear team,
My customer want to know side effect when soft start port is floating status.
In fact, they connected Css on SS port but Css is not connected GND. Is there any side effect?
1. For this case, Does LMR14020 start-up normally…
Part Number: LMR14020-Q1 Hi team,
Could you help compare these two devices? In addition to spread spectrum, I don't find any obvious difference.
Thanks!
Nison
Part Number: LMR14020-Q1 Thank you for your help with the patterns on the board.
LMR14020SQDDARQ1 and LMR14020SSQDDARQ1
What is the difference in hardware between LMR14020SQDDARQ1
and LMR14020SSQDDARQ1 (Spread Spectrum)? The data sheet seems to be…
Part Number: LMR14020 Other Parts Discussed in Thread: LMR14030 , , LMR14050 , LMR16030 , LMR16020 Which simple switcher are pin + package compatible with the LMR14020 and functionally (nearly) compatible? (Not the LMR14030, other families...)
For the new…
Part Number: LMR14020 Hi engineers,
There is a EMI problem from customer which occur in a 12V to 5V step-down application based on LMR14020, this circuit works fine.
Background:
they encountered an EMI problem that 3dB exceed at the 330KHZ frequency point…
Hello,
I would expect to see some switching noise on the input due to the discontinuous switching currents at the input to the buck, but the magnitudes you are measuring seem larger than I would expect. This could be due to probe set up, please follow…
Part Number: LMR14020-Q1 What kind of design should I make to support CISPR25 and class5? Is it possible to suppress noise by strengthening Vin or SW? I could improve it by attaching an LC filter (100uF: aluminum electrolytic capacitor and 47uH) on the…
Part Number: LMR14020-Q1 Other Parts Discussed in Thread: LMR14020 , TPS54340 Hi Team,
There is currently a noise issue from customer side!
Currently LMR14020 operating frequency is 2.2MHz, when customer system is turned off and test noise, will find a…
Part Number: LMR14020-Q1 Hi team,
Here is customer LMR14020Q1 schematic design, after their loop test the gain is not good, could you please help to give some detailed suggestions (with specific recommendation RC value) on their schematic? Like increase…
Part Number: LMR14020 Hi team,
My customer automotive project use LMR14020(12V to 5.27V)+TLV62569DBV (5.27V to 1.15V) while mass production, 19pcs TLV62569DBV have burn out but LMR14020 is normal(LMR14020 output connect to TLV62569DBV input ). It is initially…