When it comes to testing VRM performance, there are multiple ways to do it including using the likes of HWiNFO to measure what the sensor tells you, or to use K-Type probes, or to get a better, ...
Microchip has announced 10 automotive-grade multi-channel temperature monitoring ICs that use external diodes, transistors or substrate diodes (MCU or other die) as sensors. Called the MCP998x family, ...