Two kinds of output switching power supply circuit diagram

Published:2012/12/7 1:24:00 Author:Ecco | Keyword: output , switching power supply | From:SeekIC

As shown in figure, it is a high-power switching power supply with L4970A. L4970A is a high-power single-chip switch integrated voltage regulator, the chip uses SIP-15 package, which is characterized by: ( 1 ) Input voltage must be > 11V, and the value is typically between 15 ~ 40V; ( 2 ) Output voltage: Fixed output is 5.1V, and it can also be set through an external circuit adjustable output with the range of 5.1 ~~ 40V; ( 3 ) the maximum output current is 10A; ( 4 ) operating frequency is 200kHz; ( 5 ) internal undervoltage detection, brownout reset power stage soft start circuit.



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