Hi JH,
For non isolated solution, the can consider the same devices in SEPIC topology. A reference for this would be here https://www.ti.com/tool/PMP31279 (Here they need to pay attention on their higher input voltage range, so they can consider LM5156 for…
Part Number: LM51561-Q1 Other Parts Discussed in Thread: PMP31279 我参考的是官方的PMP31279的设计，其输入输出参数为 VIN 6-12V ,VOUT = 12V, IOUT = 1A.现在我将其参数原封不动的不变，实际测得最低启动电压，确实是6V，现在我想使启动电压的更低，因此，我将其第12脚（UVLO_SYNC）直接上拉至VIN，然后将从VIN连接到BIAS脚的二极管，更换为压降更低的肖特基二极管，实测下来最低启动电压，能够达到4…
