Part Number: LMR33640 Other Parts Discussed in Thread: LMR51440 Hi all, I need to build a buck solution with 14.4V IN and a variable output from 3V to around 13.5V 3A. I thought about using a LMR33640ADDAR because of the low cost and because it's sync.…
Part Number: LMR33640 Hello,
I would like a helps about PSpice, I went to the PSpice forum but the delay is too long and I have to move forward. So I have a file (a simulation file that works very well). But When I try to simulate myself I'm having a…
Part Number: LMR33640 Hello team,
I received a question from the customer.
Could you please explain the calculation process for the highlighted areas?
VIN：***V，VOUT：***V，fsw：***kHz，K：***，IOUTmax：***A
For example, the following calculation results in…
both is ok, I suggest use both capacitor to decrese the input ripple. the input rippple is related to ESR and input power, so low ESR capacitor is recommend.
and in the same time, it also need to provide power, so we need put 47 uF to 100 uF capacit…
Part Number: LMR33640 Other Parts Discussed in Thread: TPS5420 , TPS54331 Hello,
Our customer is looking for a DCDC converter to meet following spec, and found out LMR33640 is the best. However I do not know LMR33640 can support wave soldering. Could you…
Part Number: LMR33640 Hello,
Our customer evaluated LMR33640 in TI EVM and it works successfully. His concern is thermal management since his design has to be done by 2 layer PCB rather than 4 layer PCB in the EVM. Could you suggest if you have any idea…
Part Number: LMR33640 Other Parts Discussed in Thread: TPS54540 Hi Team,
My customer wants to replace tps54540 with LMR33640.Any things should take into consideration?
Thanks and regards
Part Number: LMR33640 Hi,
this app note says that a typical value for the inductor current ripple (ΔIL) as 30% of the output current. www.ti.com/.../snva856a.pdf but according to some boost converter , the ratio is determined to the average inductor…
Part Number: LMR33640 According to the topological structure of IBB in SNVA856A document, the engineer designed the negative voltage circuit with input 12V and output -5V with LMR33640, and built the actual circuit with the hole board, but no negative…
