Problem with ADP7182.
It works well with no load but runs out of current as soon as I place a small load ( 3mA). Load increases the overall current consumption by over 50 mA.
The regulator does not oscillate, with stronger load, its current limiting fearture…
I've wired the Adj pin directly to Vout to produce a -1.22V output with the Adjustable version. -5.5Vin and -1.2Vout. Unfortunately I'm getting -5V out. I've checked the part case lettering and it appears to be correct for the adjustable version so why…
您好!
目前使用ADP7182希望從-25V轉成-1.8V, 調整adj分壓電阻為60.4KOhm 與 110KOhm後僅能得到-2.5V. 請問有其他的建議可以達到期望的輸出值嗎? 謝謝
Hi
I would like to have a very slow rise-up time by ADP7182.
It’s about 5msec @ - 5V, as slower.
Could you tell us if there is any good way?
Regards
Moto
Hello all,
first time poster here, so I am not sure if this ends in the right forum:
I am working with some poer regulators: LDO type, positive and negative:
ADP7118 and ADP7182 in SOT23-5 Package, just for some information. Adjustable versions
Now…
Thanks,
David B
ADP7182 和 ADP7142 型号和输出电压的关系?
最近用了以上两款LDO,型号分别如下,输出电压写的分别为-5V和5V。
首先,我想问一下这个输出电压是固定输出电压吗?还是内部参考电压?因为在实际使用时的现象和手册写的不太一致。
在实际使用中,7142接成可调输出,R1=R2=10kΩ,测试输出端电压为10V,所以这个型号是可调输出?5V是内部参考电压?
但是7182同样接成可调输出,R1=R2=10kΩ,测试输出端电压只有1.2V,ADJ管脚的电压为R2的分压值0…
1、ADP7182如果采用固定输出-5V的芯片,假设输入只有-5V,那固定输出是多少?
2、可以长时间这样使用吗?
1、是采用如图所示,直接接到VIN吗?之间不用电阻之类的吗?
2、手册中推荐的电容是有符号的,这里直接用无极性的会不会有问题?
谢谢
ADI专家,您好!adp5070数据手册中的24页,设计正负15V电压,-15V采用了adp7182,电阻值的设计为什么跟adp7182数据手册中的说明不一致?