Hello,
The above plots were taken with output voltage set to 8V, with a 30mA load. When we increase the load above 50mA, the ~1.2V ripple goes away, implying that we are hitting a fundamental limit of this chip. Is this a consequence of the chip being…
Hi Marco - To guarantee ON or OFF operation over all conditions you need to control the EN pin. If you want always ON, just connect a pull-up resistor from EN pin to VIN. The IC will not get damaged unless the applied voltage on EN pin exceeds VIN + 0…
Other Parts Discussed in Thread: LMR12010 Hello,
I have problems using LMR12010. It's very simple step down application from 10Vdc input to 3.6V output.
I followed app note for LM12010 with input capacitors, output capacitors and other recommended…
Hi Mario,
I must warn you about potential problems with LMR12010. I used it in two different applications in in both cases I have problems with low frequency ripple. I consumption is 30mA or more it works fine. If it is below this current, output voltage…
Other Parts Discussed in Thread: LMR12010 Do I understand correctly, when I use the LMR12010 to generate 3V3 out from 4V to 10V input I can use a simple small signal diode from output to boost pin?
Hi Marc,
thanks a lot for this information and explanation.
In my application I use the LMR12010 to generate +5V and 3.3V out of +12V. So there's no problem to use the Output-Voltage as source for the Boost voltage, right?
Best regards
Mari…
Other Parts Discussed in Thread: LMR12010 Hello,
In my application I need large storage capacitor (2 x 4700uF) on output side of a regulator (LMR12010), for driving GSM module. On primary side I have also even larger storage with higher voltage (12V…
Part Number: LM25085 Other Parts Discussed in Thread: LMR12010 Hi team,
I have saw AN-2157, "Constant Current Constant Voltage Buck Converter With LM25085, or, Implementing Accurate Current Limit With LM25085", seems good example for design CC/CV. …
Part Number: LM2651 Other Parts Discussed in Thread: LMR12010 , Hello team,
I have a question regarding the LM2651MTCX-ADJ/NOPB.
It has a hysteretic mode at light loads that could be a problem for my problem, depending on the load at which it drops…
