Part Number: LM2623 Other Parts Discussed in Thread: TPS61021A
Hello
My customer is finding out the boost converter solution (FY18 portable medical) for:
Vin=0.9~1.5V (Alkaline x 1)
Vout=1.8V Io>0.1A~
One candidate is LM2623 , but I have two concerns…
Part Number: LM2623 Hi Team,
Our customer would like to know the behavior of LM2623ALD when VDD is less than 0.8V(VIN_OP).
Could you please let us know if you have any information?
[Q1]
If VDD is less than 0.8V(VIN_OP), Does this device stop switching…
Hi Youhao-san,
Thank you for the information.
I have three questions.
[Q1]
I understand that this device starts the switching when the output voltage reaches the threshold (higher than VOUT * 0.6%(TYP)).
Could you please let us know…
Part Number: LM2623 Hello,
i am having an issue with the LM2623A stepup converter. The aim is to drive a magnetiv valve from two AA Alkaline cells. The valve has 33Ohm a current of 200mA is necessary, therfore a voltage of 6,6V is necessary. The circuit…
The LM2623 should work in this application; although I do not know of anyone who has tested it.
Be careful about the maximum input voltage on the gate of Q1. The abs max on the LM2623 EN pin is 10V; so
it can be connected to Vin if that restriction is…
Other Parts Discussed in Thread: LM2623 , LM2621 , LM2665 , TPS60141 , LM2700 Two questions on the LM2623:
System requirements: Input source = 2AA batteries in series. --- Output = 7.5V, 5mA Max.
Q1) I ran through the design calculations and used the on line…
