TPS63020 Automatic Buck-boost Step up Down Power Supply Module 4.2V TPS63020 is a high-efficiency small buck-boost power supply solution with input voltages from 1.8V to 5.5V, the output current can be up to 3A, the efficiency is up to 96%, and it can automatically operate in buck and boost modes Convert. Quiescent current less than 50uA, fixed operating frequency 2.4MHz, can be used in all two- and three-cell alkaline, Nicd or NiMH or single-cell lithium battery-powered devices, small mobile PCs and MIDs, digital media players, DSCs and cameras. Color: Black Material: PCB + electronic components model: 4.2V Package Contents: 1 x Automatic step-up and step-down module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.