Antivirus and DLP are separate products even for vendors that provide both. Of course you need to understand what DLP features comply you best.
There are three common approaches:
1) DLP by content. Classical DLP Suites utilize fingerprinting (Forcepoint, McAfee, GTB, Symantec, etc.). Doing content detection by only keywords and regular expressions it's a way to mess of false-positives (Trend Micro, Palo alto etc.)
2) DLP by context. Digital Guardian is the only true endpoint DLP within this approach.
3) DLP on/off. The most stupid way is to block or pass everything by rule ON or OFF (without checking content or context). I even can't name this solutions as DLP.
For your case GTB DLP or Digital Guardian is an answer. Of course if you forget to insist to contain antivirus. Digital Guardian works as endpoint security too because it prevents access from ransomware to confidential data and could check signatures via Virus Total, but it is still not antivirus, it's rather EDR (endpoint detection and response) that is much efficient than any traditional antivirus.