For the led large screen, we use TPS1120D for row control, but looks so high cost, which chips better to instead of it?

Hello John,

Can you help me understand your application a little bit better?

Input Voltage, Drain to Source?

Current per channel?

Switching time, Rise Time?

You could look into the Load Switch Portfolio for other multi-channel options:

http://www.ti.com/lsds/ti/power-management/non-current-limited-load-switch-products.page

There are also a number of other lower cost P-FET options in the FET catalog.

Help me understand what you are looking for and we can hopefully find you a part that is a good fit for your application.