JAJSFU4 July 2018 TPS650861
PRODUCTION DATA.
This controller is designed to drive two NMOS FETs. Typically, lower RDSON values are better for improving the overall efficiency of the controller, however higher gate charge thresholds will result in lower efficiency so the two need to be balanced for optimal performance. As the RDSON for the low-side FET decreases, the minimum current limit increases; therefore, ensure selection of the appropriate values for the FETs, inductor, output capacitors, and current limit resistor. TI's CSD85301Q2, CSD87331Q3D, CSD87381P, CSD87588N, and CSD87350Q5D devices are recommended for the controllers, depending on the required maximum current.