LM3420-4.2 controller equivalent, lithium-ion battery charge controller.
n n n n n Voltage options for charging 1, 2, 3 or 4 cells Tiny SOT23-5 package Precision (0.5%) end-of-charge control Drive capability for external power stage Low quiesc.
(4.2V, 8.2V/8.4V, 12.6V and 16.8V respectively). Included in a very small package is an (internally compensated) op amp,.
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