https://community.nxp.com/t5/Power-Management/question-about-SFS2613BMDFKAD/m-p/2333155#M5071 <P>The current model of the SBC chip I am using is SFS2613BMDFKAD. The chip is powered by 12V. Currently, I can measure Vpre to be 5.6V, but there is no output from Vcore, LDO1, LDO2, TRAK1, or TRAK2. What is the reason for this? What should be done about it?</P> Mon, 16 Mar 2026 01:45:29 GMT xiayichuyang 2026-03-16T01:45:29Z https://community.nxp.com/t5/Power-Management/question-about-SFS2613BMDFKAD/m-p/2333155#M5071 <P>The current model of the SBC chip I am using is SFS2613BMDFKAD. The chip is powered by 12V. Currently, I can measure Vpre to be 5.6V, but there is no output from Vcore, LDO1, LDO2, TRAK1, or TRAK2. What is the reason for this? What should be done about it?</P> Mon, 16 Mar 2026 01:45:29 GMT https://community.nxp.com/t5/Power-Management/question-about-SFS2613BMDFKAD/m-p/2333155#M5071 xiayichuyang 2026-03-16T01:45:29Z https://community.nxp.com/t5/Power-Management/question-about-SFS2613BMDFKAD/m-p/2333159#M5072 <P>1：能把SFS2613BMDFKAD的 OTP 文件发下看看吗？</P> <P>2：测试的时候先把DEBUG pin接到5V再上电12V.在debug模式下测试</P> Mon, 16 Mar 2026 01:48:57 GMT https://community.nxp.com/t5/Power-Management/question-about-SFS2613BMDFKAD/m-p/2333159#M5072 guoweisun 2026-03-16T01:48:57Z https://community.nxp.com/t5/Power-Management/question-about-SFS2613BMDFKAD/m-p/2333200#M5073 <P>目前测试，先接Debug的5V，在给12V供电，依然是只有Vpre有5.6V输出，其他都没有输出，我的目标是Vcore输出1.5V，其他的LDO和TRAK输出5V，您用这个芯片，有没有遇到类似问题？</P> Mon, 16 Mar 2026 03:41:25 GMT https://community.nxp.com/t5/Power-Management/question-about-SFS2613BMDFKAD/m-p/2333200#M5073 xiayichuyang 2026-03-16T03:41:25Z https://community.nxp.com/t5/Power-Management/question-about-SFS2613BMDFKAD/m-p/2333201#M5074 <P>有遇到过这种问题，您还是好好检测下原理图，有的客户芯片OTP的是back-end模式但是他的原理图上确是front-end的电路，</P> Mon, 16 Mar 2026 03:44:25 GMT https://community.nxp.com/t5/Power-Management/question-about-SFS2613BMDFKAD/m-p/2333201#M5074 guoweisun 2026-03-16T03:44:25Z