Question for your ADP2120
Dear Sir/Madam, I have a question for you. As for your ADP2120 switching power device, If there is no load on output side, does the input voltage appear to the output side directly?This means that the...
View ArticleHow to build a self low power supply for ADF4159 evaluation board
Hi to all community,i hope a can have some help on my question about how to build a self low power supply for ADF4159 evaluation board.I want to know if someone can help me to know the power...
View ArticleADN8831 Cooling Problem
I recently started testing my ADN8831-EVALZ board for its heating and cooling control ability.I am currently using a 10k NTC thermistor. I can successfully heat the target device. However, when I try...
View ArticleADM8829 with ceramic capacitors
Hi, I want to know if the ADM8829 will work well with small MLCC capacitors instead of electrolytics. Datasheet recommeds ESR < 0,2 ohm and my MLCC candidates have <5 mOhm. I Want to generate -5V...
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False Key Detection in ADP5585
HI all.,We are facing a false key detection on our product. We are using the Keypad Decoder ADP5585 IC for the KEypad logic on our product. The datasheet of ADP5585 specifies that a Key press will be...
View ArticleExposed pad of ADP2303
Hello, Is the exposed pad of ADP2303 internally connected to GND pin? Or floating ?Which should the exposed pad externally connected to in 'inverting' configuration, system ground ? or GND pin level?...
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adp3334's thermal pad
hi; I made a stupid mistake. In one of my project I used a adp3334acp to regulate 7v input power to 6v output. according to the datasheet of adp3334, "the thermal pad is attached to the die substrate,...
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ADM7151 doesn't turned off totaly. Why?
Hi, I'm using the ADM7151ACPZ-04-R2 regulators, in several places, in my board.One of the regulators is designed to generate 5V_VCC, from 6V input.When EN is high level (3.3V), regulator produces...
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Simulation using AD8336, AD736 and AD8551 spice models in Pspice
I have this circuit to be simulated in Pspice. I'm a complete newbie to it. But so far have managed to make the schematic (adding external components, which were not available already in the...
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ADP5071 can't start when load large capacitors.
Hello everyone, As specified in the datasheet, ADP5071 will shutdown if the current exceed the limit. When I use about 100uF capacitor, the start curve is as follow. But if I keep increaing the...
View ArticleSync ADP5054 switching frequency to clock ranging from 500 KHz to 880 KHz?
Regarding the ADP5054. We have to be able to Sync to an external clock with a range of 500kHz to 880kHz. Per page 16 of the datasheet. “Note that the internal switching frequency set by the RT pin must...
View ArticleDC DC Recommendation
I need a part that meets the following requirements: Vin=12V Iout= 1.5A Vout= 5V to 12V (adjustable) any suggestions from ADI?
View ArticleADN8831 single set point temperature configuration
HiI have a question about the single setpoint temperature configuration. The user manual says that we have to keep single point temperature as midpoint temp T(mid) and set T(High) = T(mid)+5(deg) and...
View Articlehow to minimize the glitches on ground pin?
Hi All, Iam getting issue in system level IF i connect different boards. ISSUE:I shorted the ground of two boards.If i short the other 3rd board ground on any of the first two boards,getting many...
View ArticleADP2384 or some other high eff regulator as current source
Im trying to create an ultra efficient current source at (0 to 2Amps) using either 1 lion cell or 2 lion cells in series as input (5.5-8.4V). I dont care about current accuracy but I do want it to...
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If ADM707 support wave solder
Hello, Is the part ADM707ARZ-REEL able to be Wave soldered? if it is, what's the recommended value of two parameters “Peak Wave Temperature” and “Time@Peak Wave Temperature-Max”. Thanks,Susan
View ArticleLi-Ion (Lithium) Battery - Charger and protection ICs ???
Hi. I am designing a power supply where I will also need to use a backup battery.The choosen battery type was a Li-Ion (Lithium) type, which has a nominal cell voltage of 3.7V .I have little experience...
View ArticleADIsimPE How do I check the number of node
Hi All, Because of existing the limit of the number of node, I'd like to check it on ADIsimPE.Is there any function to count current node? Regards, TM
View ArticleAn error message appeared and said " *** ERROR *** The circuit is too large...
Hi there !I just started using ADISIMPE and I have a question .I tried to simulate AD8418A .When I was using one AD8418A , there was no problem.But tried to use two AD8418A , an error message apeared....
View ArticleADM7171 dropout for output voltages below 2.3V (adjustable version)
Hi. In the ADM7171 datasheet the typ/max dropouts are listed in the tables, followed by some dropout plots. There is however a note that says that these dropout specifications only apply to voltages...
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