Other Parts Discussed in Thread: LM25005 , LM46002 , TPS5420 I have a question about LM25005.
Does this Ic have light load mode?
I am looking for the IC of PWM mode only.
Best regards,
Takahiro Nishizawa
Other Parts Discussed in Thread: LM22680 , LM25005 , LM5005 Hi Team,
Our customer would like to use CCM mode at output current = around 0A to 1.5A.
We understand that we can use CCM mode at light load conditions if we increase inductor value.
So, we guess…
Other Parts Discussed in Thread: LM25005 Hi,
I would like to know what happens when the input voltage is less than the set output voltage in a LM25005 regulator?
I would like to power a BQ50050B circuit with input voltage ranging 10-28 volts, is their…
Other Parts Discussed in Thread: LM25005 I used TI's webench design tool to generate -15V fixed output from 18-21V input.
The IC suggested was LM25005. Please see the attached file for design.
On my first test, i was getting -3.55V output.
on datasheet…
Other Parts Discussed in Thread: LM25005 There seems to be a bug/error in Webench for a negative DC-DC design using the LM25005. In my Webench design Cramp=56pF and L1 = 22uH. According to the data sheet, Cramp should equal 10^-5 * L1, so should equal…
Other Parts Discussed in Thread: LM25005 I am looking for ICs that meets the following conditions.
Vin=15V
Vout=5V
Iout=1.5~2A
Switching Frequency=~500kHz
PWM mode only( we do not need Light Load mode )
Non-synchronous rectification
Does LM25005…
Nishazawa-san,
There is no way to simulate the loop characteristics for TPS54240 in the inverting buck boost configuration using the existing tools. You would have to estimate it by the non-inverting case, e.g. Vin = 18 V and Vout = 6 V. There are some…
When I checked my design in fact it has been saved. I have selected LM25005 that is on stock. WEBENCH prompted that TI will forward to Digikey processing. I'm waiting for Digikey.
Hello,
What you are describing is common for output voltages above 5V. The control scheme used by the LM3102 is that of constant ON-time. The feedback loop consists of a comparator and reference and not the usual op-amp and reference. Your component values…