我在使用LTLT1963AES8-3.3芯片时，遇到如下问题。电路的目的是通过STM32 MCU单片机的I/O控制LTLT1963AES8-3.3的SHUT 管脚，STM32 MCU单片机的I/O (PSW_1)配置成开漏输出，内部无上拉，外部接1M的上拉电阻，当PSW_1为1时，可输出LTLT1963AES8-3.3可输出3.3V电平，当PSW_1为0时，LTLT1963AES8-3.3可输出不是0V，而是1.4V，找不到原因。请帮分析下，电路图如下：
1. Can LTC3556 handle 3.3V/400mA + 3.3V/400ma + 5V/200mA configuration?The datasheet clearly states Vout for Buck-Boost regulator (5.5V max), but it is not completely clear about max Vout for 2 buck regulators.Max P is ~5W (with battery charging…
Can you provide more information like what is the input voltage and where is it coming from? You may want to consider that the limitation of power delivered at output can be related to power available at the input. Another thing to consider…
Has anyone tried using the ADG901 with a 3.3 V supply and signal levels?
The maximum VDD to ground rating is 4 V. I just want to use this for some prototyping and just power it directly from the microcontroller board I'm using.
Apologies for the delayed response. PBFG is not a valid suffix for the LT1460 family. The LT1460 product page has all the valid part numbers listed in the ordering guide under the Sample and Buy section here .
we are using this part for one of our RTC charging section Vbat is 12V when the LDO is charging the RTC capacitor during PowerUp and then a 75-ohm load Resistor is added Parallel to LDO o/p Manually. We are seeing a voltage dip across the LDO o/p it…
I try to use fixed 3.3V variant of LT3066. More precisely: LT3066EMSE-3.3 and somehow I get Vin to Vout.
My schematics is as follows:
Can you tell what is wrong with current schematics that I get 12V on OUT_1 and OUT_2 pins if I connect 12 V to IN_1…
I could have sworn someone promised that in Sigma 3.3 the on-screen connection wires would stay put when importing a hirearchy board into a design. When creating a circuit, especially a complex one in which you must use "Insert Point" to keep routes clear…