Dear sir, madam,
Currently we are using a TPS61165DBVR with SOT-23 package. Due to thermal issues we are planning to use the TPS61165DRVR with WSON package so we can use the thermal pad for better heat transfer.
Can you describe it there are any difference between these types except for the housing and thermal behavior?
Our application:
Vin= 3-6V
Vout= 14,5 or 29V (two different led boards are used: 5 or 10leds in series)
Iout= 70mA
Secondly I'd like to ask if you can check the selected components are chosen correct:
Inductor: WE-TPC 4828 10uH 1.19A .095Ohm Würth 744043100
Schottky diode: ONSEMI MBR0540
Rsense: 1206 2.7R 1% 0,25W YAGEO RC1206FR-072R7L
Cin: 1206 4,7uF 20V TANTAAL Low-ESR KEMET T491A475K020AT
Comp: 0603 220nF 50V X7R
Cout: 1206 1µF 50V X7R 10% SAMSUNG CL31B105KBHNNNE
We are also thinking about increasing the induction to 22uH to reduce switching loss. Could this help?
Thanks in advance,
Cees Hendricksen