Hi Chris,
Although we have been able to investigate that depending on the RT, SS, and ITH settings, the product may deviate from the soft start period, we cannot read the current limit outside the soft start period from the data sheet, so we asked this…
Part Number: LM20146 Other Parts Discussed in Thread: TPS62869 LM20146 has internal +2.7V REGULATOR.
If thix regulator output become 2.6V,does this cause internal comparator threshold voltage drop ?
Part Number: LM20146 Our customer has LM20146 start up problem.
Stop switching and Vout decreasing are found.
Please see attached waveform.
1512.waveform.xlsx
They would like to know the reason why device stop switching.
Phenomenon is improved when they…
Part Number: LM20146 The datasheet of LM20146 says that the filter capacitor Cf has a value of 1uf . But when I using WEBENCH tool it showing 100nf capacitor as Cf. which value should I take ?
(my input is 5V. output is 3.3V,6A
Part Number: LM20146 I want to use LM20146 for an output of 3.3V,6A. My input is 5V. When I calculate the value of Rc1 (Cc1 as 4.7nf) i got the value as 4.9k. But when i use WEBENCH it shows Rc1 as 15.4k and Cc1 as 4.7nf. Which value should i take?
L=…
Part Number: LM20146 In the datasheet of LM20146 in page 16 there is a equation for calculating the value of resistor Rt. But it didn't make any sense, when i giving the lowest switching frequency and highest switching frequency it will always giving…
Part Number: LM20146 Our customer has a question about SW frequency of LM20146.
They use 260kohms as RT.
Fsw 247.62kHz is given from EQ(8) in datasheet P16.
If this frequency set about 200kHz, what kind of problem happen ?
