You are right. Buck uModules can be used to give negative output voltage. LTM4601/02, LTM4637 can all be used in these applications.
The output of uModule should be connected to system GND and GND of uModule connect to -Vout. This is a buck-boost configuration…
LTM4601，一个完整的 12A 降压型开关模式 DC/DC 电源，具有内置的开关控制器、MOSFET、电感器和所有相关的支持组件。该 µModule 采用了一个小型表面贴装 15mm x 15mm x 2.82mm LGA 和 15mm x 15mm x 3.42mm BGA 封装。
产品详情以及相关资料，请点击：LTM4601 数据手册和产品信息 | 亚德诺半导体
Hi B. Skivakumar,
Can you confirm in your setup where you saw issue that your remote sense amplifier is enabled? If you would like me to double check your schematic please send to Samuel.Young@analog.com.
If your remote sense amplifier is enabled…