TPS61040-Q1: In 7 inch hdmi display module i found a regulator which has PH01 on its surface is it negative regulator? what is the regulator used for generating negative voltage VGL for display?

Part Number: TPS61040-Q1

Hi..

In 7 inch hdmi display module, which regulator is used for generate negative voltage for display. is it 

TPS61040DBVR ? 

can you tell me what type of regulators used in hdmi display modules?

regards,

Rakesh N.