ADP3338-5 dropout voltage
Hi,ADI ExpertI use the low cost LDO adp3338-5 as the digital power regulator for my design.but now i am confused with the one of its features.I quoted the feature here-- 'Ultralow dropout voltage: 190...
View ArticleUsing ADN-8831 TEC driver with a 0.8V/1.8A TEC
Hello, I am very interested in using this IC to control an APD TEC that has maximum TEC ratings of 0.8V/1.8A. Looking at the specs of ADN-8831, I am guessing it can be used and I am thinking of...
View ArticleADP1753
Hi, What is the Thermal Parameters of ADP1753ACPZ?I need Psi_jt value. - This question rewrote.- Sorry, Psi_jb was found in datasheet. Best Regards,Tar-Bow
View ArticleADM1171 circuit breaker
HiI would like to make sure about circuit breaker function of ADM1171.The circuit breaker is worked only during hotswap operation?, or always? Regardsmoto
View ArticleADP1613 current drive
Hello, I want to use ADP1613 to step up 5V to 5.9V. Please let me know if this regulator supports 2A at 5.9V. Thanks & Regards,Ajith
View ArticleADP3339AKCZ-5-R7 voltage drop
Hello, I am using ADP3339AKCZ-5-R7 in a design.Input to this is 5V and the output of this 4.77V. Is this a normal behavior and is the output voltage properly regulated throughout temperature.Now if I...
View ArticleDo ADI offer a low noise push-pull driver?
I'm considering using one of the Linear Technology push-pull driver chips, e.g. LT1533, LT1683 or LT3439. At over $4 they are pretty pricey, so I'm looking for alternatives. Do ADI have anything...
View ArticleADR44x and automatic output adjustment
I'd like to avoid mechanical trimmer for adjusting the output voltage.Is good idea use Digital Rheostat AD5270 in Trim circuits or noise and thermal drift digital potentiometer completely kills...
View ArticleMinimum Inductor Value caluculation
Hi there, I have found a caluculating fomular for the minimum inductor value from ADP2386 datasheet,but I'm not sure where this fomula come from.Could you tell me how to lead to this fomula?Or if...
View ArticleADP5585 default register status
We are planning to use the ADP5585 keypad controller in our design but I could not find any data as to the default settings of the registers. Does anyone have this information?Our main concern has to...
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ADP5587 SPEC. Question
Dear Sir:ADP5587 can be used for push-pull architecture? Another AD5587 GPIO(R0~R7,C0~C7) ,If useing Open-drain or push-pull mode in system design. Each GPIO can accept the sink current is how much?...
View ArticleADP2504 Over-current
My customer will be using this part to driver an Led at 500mA Constant current, can you advise re the following two questions ? 1. The part has s/c protection built in but I cannot see a voltage clamp...
View Articlesome ways to discuss some ac to dc methods.
I am a chip designer. I have some questions about the isopower icoupler. Now I want to use a simple device to convert the 220Vac to a low DC (1~3V current is around 10mA). The efficiency demand is not...
View ArticleHelp me !! Shutdown fuction of LT1305
I made LT1305 for 5V from 3V battery.Basic operation is good but I want to use shutdown fuctionSo I apply 5V output to shutdown pin ( No3 of LT1305) But the output is not zero voltage, keep 2.5V. How...
View ArticleADM1191 returns wrong values of voltage and current
Hello.I use ADM1191 as a power meter (voltage and current) for motor control application. I init IC to continious convert both voltage and current, or voltage only, or current only. MCU reads values by...
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Voltage and current errors with ADM1191 @ -10 degC
I'm using 3 ADM1191 to monitor the voltages and currents on my power amplifier FETs (see below). I've set up the devices to read continously and poll the values. They work as expected, except at about...
View ArticleReducing EMI with shielding
I am trying to isolate my AD7794 converter from my microprocessor using the ADUM5010 and ADUM1311 isolators. The isolators would be placed on a separate board, which would be linked via a flat cable to...
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how do i decrease Iq with adp160
Hello Sir,i have designed a power supply circuit based on ADP160AUJZ-3.0, the circuit diagram is belowPWR_BATT is Vin = 4.5VPWR_RTC is Vout = 3.0V The result is:1. when load current is 3uA, Iq = 87uA2....
View ArticleHow do I calculate LDO (Low Drop out Regulators) efficiency?
How do I calculate LDO (Low Drop out Regulators) efficiency?
View ArticleADP5052 sw freq simulation
Hi I need multi output step-down regulator from 12V . I would like to make layout size smaller.and I would like to know external components easily.so I tried to use "ADP505x Buck Regulator Design Tool"...
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