Part Number: LMR62421 Other Parts Discussed in Thread: LM2735 Hi,
I am seeing 3.3V on the output of the LMR62421 with the enable is low. The voltage seems to be a diode drop value of the input voltage so I am not sure what is going on. I have attached…
Part Number: LMR62421 Other Parts Discussed in Thread: LMR64010 , I am using LMR62421XMF/NO regulator to boost from Li ion battery 3.7 V to 12V . I had checked the switching output but no pulsing i can see .
Also i am cascading two boost regulator . In…
Part Number: LMR62421 Other Parts Discussed in Thread: TPS61023 Hi :
I want to drive a 2*2W DAC by single cell Li-on Battery.
In my design, I will turn off battery when voltage less than 3V, meanwhile with USB plug in, I want to use 5V instead of battery…
Hello Eric,
Thank you for your answer.
For some how when I do not have place the EN pin resistor, the regulator LMR62421 gets damage. I verified that it is not related to the resistor . I have short circuited the resistor and there was no difference in…
Part Number: LMR62421 Hello Zack, We have done with LMR62421 placements. Please check the placements of a LMR62421 IC Placement.. Please tell, this placement is correct?
Part Number: LMR62421 Hi, I have the following design using the LMR62421 to boost a 4.5V input to a 12V output, with a nominal load of ~100mA, and a damped LC low-pass filter on the output: As-is, the output only approaches 12V measuring an open circuit…
Part Number: LMR62421 We used LMR62421 SOT package to drive 4 LED with Vf 6v @ 50mA. Somehow, LMR output voltage drops to 6.4v. LMR is configured for 7.5v output. Is there any limitations. we used 10uF output cap. we also tried 22uF and 470uF output cap…
Part Number: LMR62421 Hello,
I would like to export the attached design to Altium Designer. This fails each time I try, with no error messages, after several minutes.
Is there a way I can work around this?
Alex. 0815.WBDesign18.pdf
Part Number: LMR62421 Hi, I have an issue with a circuit implementing LMR62421XSD/NOPB. It is used to boost voltage from 5V to 18V. The 18V is delivered to 3 LDOs. The circuit was designed with Webench, with a small reduction of the inductance. The circuit…
Part Number: LMR62421 Other Parts Discussed in Thread: TPS61170 Tool/software: WEBENCH® Design Tools Hi I am trying to design step up power supply with 5V input 24V output with max current of 150mA. When I use Webench Power Designer it gives me a strange…
