Welcome to the PMU Section of the TI E2E Support Community. Ask questions, share knowledge, explore ideas, and help solve problems with fellow engineers. To post a question, click on the forum tab then "New Post".
Hi ,
One of our customer is developing a hand held POS based on TPS65251 PMIC and rail are follows ........ customer is not getting the efficiency in Light load . how we have to increase the efficiency in each BUCK ? Do we have any better PMIC with better efficiency ?
9 V to 12 V / 3 A (Lithium ion battery ) ------------------------------------ 5 V / 0.200 ma (BUCK 1 )& 3.3 V / 0.200 ma (BUCK 2 ) & 4.2 V / 2 A maximum (BUCK 3 ) . They want to have more efficiency in BUCK 1 & BUCK 2.
Please suggest the solution or better device ASAP.
Regards/
Vengat.
This vengat here ( from Avnet Distributor ) , Can you any one please update me about the above post.
FYI : In Buck 1 & Buck 2 only they are getting 65 % efficiency & want to improve the efficiency because it is battery operated .
Regards/vengat
Hi.
Unfortunately, TPS65251 can't support individual channels low power mode hecne your appllication efficiecny has not good. if you need only two channels low power mode, you can use TPS65253. if you need test data, let me know. my e-mail address : yg_kim@ti.com
Regards YG Kim.