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AS3722 Datasheet(PDF) 29 Page - ams-OSRAM AG |
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AS3722 Datasheet(HTML) 29 Page - ams-OSRAM AG |
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29 / 199 page  Page 28 ams Datasheet Document Feedback [v1-01] 2015-Sep-07 AS3722 − Detailed Descriptions- Power Management Functions DC/DC Buck Converter Parameter: Shows the key electrical parameter of the internal DC/DC buck converters SD4, SD5 1.8 A RPSW P-Switch ON resistance incl. bonds, substrate, etc SD2; VSUP_SDx=3.0V 78 100 mΩ SD3; VSUP_SDx=3.0V 156 200 mΩ SD4, SD5; VSUP_SDx=3.0V 225 300 mΩ RNSW N-Switch ON resistance incl. bonds, substrate, etc SD2; VSUP_SDx=3.0V 50 70 mΩ SD3; VSUP_SDx=3.0V 100 130 mΩ SD4, SD5; VSUP_SDx=3.0V 140 190 mΩ fSW Switching frequency sdX_frequ=1; fclk_int =4MHz 4MHz sdX_frequ=0; fclk_int =4MHz 3MHz ηeff Efficiency see figures below % IVDD Current consumption Operating current without load 60 μA RDIS discharge resistance SD2 off; Vout=1V 90 Ω SD3/4/5 off; Vout=1V 160 Ω Symbol Parameter Conditions Min Typ Max Unit |
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