LM Switching Regulator. The is a switching regulator which can easily be set up for such DC-to-DC voltage conversion circuits as the buck, boost, and. LM datasheet, LM circuit, LM data sheet: NSC – Switching Regulator,alldatasheet, datasheet, Datasheet search site for Electronic Components. LM Datasheet, LM PDF, LM Data sheet, LM manual, LM pdf, LM, datenblatt, Electronics LM, alldatasheet, free, datasheet.
|Published (Last):||25 March 2009|
|PDF File Size:||16.29 Mb|
|ePub File Size:||7.84 Mb|
|Price:||Free* [*Free Regsitration Required]|
You’re overloading it, and this is going to cut into your overall efficiency, dropping as much as 0.
Your 1 nF capacitor sets the oscillator frequency at about 80 kHz, which is a datasheft Your symptoms are actually a bit contradictory. Sign up or log in Sign up using Google. During this time the battery voltage falls to about 1.
Any suggestions on how to improve this? Slow start up of LM Ask Question.
The inductor in this configuration does not limit the output current. Note that this is already greater than the mA that the chip is specified to handle. The excessive sag in battery voltage suggests that the circuit is drawing far more current than it should during startup, while the slow rise in output voltage suggests that the current is too low for some reason.
I procured a similar circuit from here. They have a similar example in the ds for 15V mA,where the inductor is uH. Hello all, I have this circuit which will take an input 4×1. The problem I am facing is that the voltage takes about 10s. I would focus on the coil. After this the circuit works pretty fine. But if the inductor is saturating, it’ll never get there.
In both circuits sometimes, rarely it powers up immediately,which is quite perplexing.
Post as a guest Name. Sign up using Facebook.
Will it work correctly without pin 2 connected? Laszlo 1 I am doing this on a proper pcb with a ground plane,initially i had used a DIP version on a stripboard,with slightly better datashee.