EESchema Schematic File Version 4 EELAYER 30 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 3 4 Title "" Date "" Rev "v1.3.1" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr Text HLabel 1000 1000 0 50 Input ~ 0 Vin Text HLabel 8050 1200 2 50 Output ~ 0 3V3out Wire Wire Line 1000 1000 1250 1000 Wire Wire Line 1250 1000 1250 1350 $Comp L Device:C C27 U 1 1 5FB7CC6B P 1250 1500 F 0 "C27" H 1365 1546 50 0000 L CNN F 1 "100n" H 1365 1455 50 0000 L CNN F 2 "Capacitor_SMD:C_0805_2012Metric" H 1288 1350 50 0001 C CNN F 3 "https://eu.mouser.com/datasheet/2/40/X7RDielectric-777024.pdf" H 1250 1500 50 0001 C CNN F 4 "581-08053C104K" H 1250 1500 50 0001 C CNN "MouserPartNo" 1 1250 1500 1 0 0 -1 $EndComp $Comp L Device:C C28 U 1 1 5FB7D1DC P 1650 1500 F 0 "C28" H 1765 1546 50 0000 L CNN F 1 "100n" H 1765 1455 50 0000 L CNN F 2 "Capacitor_SMD:C_0805_2012Metric" H 1688 1350 50 0001 C CNN F 3 "https://eu.mouser.com/datasheet/2/40/X7RDielectric-777024.pdf" H 1650 1500 50 0001 C CNN F 4 "581-08053C104K" H 1650 1500 50 0001 C CNN "MouserPartNo" 1 1650 1500 1 0 0 -1 $EndComp $Comp L Device:C C29 U 1 1 5FB7DB9E P 2050 1500 F 0 "C29" H 2165 1546 50 0000 L CNN F 1 "100n" H 2165 1455 50 0000 L CNN F 2 "Capacitor_SMD:C_0805_2012Metric" H 2088 1350 50 0001 C CNN F 3 "https://eu.mouser.com/datasheet/2/40/X7RDielectric-777024.pdf" H 2050 1500 50 0001 C CNN F 4 "581-08053C104K" H 2000 1650 50 0001 C CNN "MouserPartNo" 1 2050 1500 1 0 0 -1 $EndComp Wire Wire Line 1250 1000 1650 1000 Wire Wire Line 1650 1000 1650 1350 Connection ~ 1250 1000 Wire Wire Line 1650 1000 2050 1000 Wire Wire Line 2050 1000 2050 1350 Connection ~ 1650 1000 $Comp L Device:C C30 U 1 1 5FB7EAF0 P 2450 1500 F 0 "C30" H 2565 1546 50 0000 L CNN F 1 "22u" H 2565 1455 50 0000 L CNN F 2 "Capacitor_SMD:C_1210_3225Metric" H 2488 1350 50 0001 C CNN F 3 "https://product.tdk.com/info/en/catalog/datasheets/mlcc_commercial_general_en.pdf?ref_disty=mouser" H 2450 1500 50 0001 C CNN F 4 "810-C3225X7R1C226M" H 2450 1500 50 0001 C CNN "MouserPartNo" 1 2450 1500 1 0 0 -1 $EndComp Wire Wire Line 2450 1350 2450 1000 Wire Wire Line 2450 1000 2050 1000 Connection ~ 2050 1000 Wire Wire Line 2450 1650 2450 1950 $Comp L power:GND #PWR056 U 1 1 5FB7F907 P 2450 1950 F 0 "#PWR056" H 2450 1700 50 0001 C CNN F 1 "GND" H 2455 1777 50 0000 C CNN F 2 "" H 2450 1950 50 0001 C CNN F 3 "" H 2450 1950 50 0001 C CNN 1 2450 1950 1 0 0 -1 $EndComp Wire Wire Line 2050 1650 2050 1950 $Comp L power:GND #PWR055 U 1 1 5FB807B9 P 2050 1950 F 0 "#PWR055" H 2050 1700 50 0001 C CNN F 1 "GND" H 2055 1777 50 0000 C CNN F 2 "" H 2050 1950 50 0001 C CNN F 3 "" H 2050 1950 50 0001 C CNN 1 2050 1950 1 0 0 -1 $EndComp Wire Wire Line 1650 1650 1650 1950 $Comp L power:GND #PWR054 U 1 1 5FB80A93 P 1650 1950 F 0 "#PWR054" H 1650 1700 50 0001 C CNN F 1 "GND" H 1655 1777 50 0000 C CNN F 2 "" H 1650 1950 50 0001 C CNN F 3 "" H 1650 1950 50 0001 C CNN 1 1650 1950 1 0 0 -1 $EndComp Wire Wire Line 1250 1650 1250 1950 $Comp L power:GND #PWR053 U 1 1 5FB81121 P 1250 1950 F 0 "#PWR053" H 1250 1700 50 0001 C CNN F 1 "GND" H 1255 1777 50 0000 C CNN F 2 "" H 1250 1950 50 0001 C CNN F 3 "" H 1250 1950 50 0001 C CNN 1 1250 1950 1 0 0 -1 $EndComp $Comp L Regulator_Switching:LMR14206 U8 U 1 1 5FB831B5 P 4050 1200 F 0 "U8" H 4050 1667 50 0000 C CNN F 1 "LMR14206" H 4050 1576 50 0000 C CNN F 2 "Package_TO_SOT_SMD:SOT-23-6" H 4050 700 50 0001 C CIN F 3 "http://www.ti.com/lit/ds/symlink/lmr14206.pdf" H 3650 1650 50 0001 C CNN F 4 "926-LMR14206XMK/NOPB" H 4050 1200 50 0001 C CNN "MouserPartNo" 1 4050 1200 1 0 0 -1 $EndComp Wire Wire Line 3550 1200 3300 1200 Wire Wire Line 3300 1200 3300 1000 Wire Wire Line 3300 1000 3550 1000 Wire Wire Line 3300 1000 2450 1000 Connection ~ 3300 1000 Connection ~ 2450 1000 Wire Wire Line 4550 1200 4900 1200 $Comp L Device:C C31 U 1 1 5FB84F60 P 4900 950 F 0 "C31" H 5015 996 50 0000 L CNN F 1 "150n" H 5015 905 50 0000 L CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 4938 800 50 0001 C CNN F 3 "https://www.mouser.de/datasheet/2/445/885012206072-1727685.pdf" H 4900 950 50 0001 C CNN F 4 "710-885012206072" H 4900 950 50 0001 C CNN "MouserPartNo" 1 4900 950 1 0 0 -1 $EndComp Wire Wire Line 4900 1100 4900 1200 Connection ~ 4900 1200 Wire Wire Line 4900 800 4900 750 Wire Wire Line 4900 750 4600 750 Wire Wire Line 4600 750 4600 1000 Wire Wire Line 4600 1000 4550 1000 Wire Wire Line 4050 1600 4050 1950 $Comp L power:GND #PWR057 U 1 1 5FB86596 P 4050 1950 F 0 "#PWR057" H 4050 1700 50 0001 C CNN F 1 "GND" H 4055 1777 50 0000 C CNN F 2 "" H 4050 1950 50 0001 C CNN F 3 "" H 4050 1950 50 0001 C CNN 1 4050 1950 1 0 0 -1 $EndComp $Comp L Device:R R29 U 1 1 5FB8838F P 5350 1400 F 0 "R29" V 5250 1400 50 0000 C CNN F 1 "3k4" V 5450 1400 50 0000 C CNN F 2 "Resistor_SMD:R_0603_1608Metric" V 5280 1400 50 0001 C CNN F 3 "https://www.mouser.de/datasheet/2/392/susumu_RR_Data_Sheet-1206438.pdf" H 5350 1400 50 0001 C CNN F 4 "754-RR0816P-3401D52H" H 5350 1400 50 0001 C CNN "MouserPartNo" 1 5350 1400 0 1 1 0 $EndComp $Comp L Device:R R28 U 1 1 5FB88C8E P 4850 1700 F 0 "R28" H 4920 1746 50 0000 L CNN F 1 "1k02" H 4920 1655 50 0000 L CNN F 2 "Resistor_SMD:R_0603_1608Metric" V 4780 1700 50 0001 C CNN F 3 "https://www.mouser.de/datasheet/2/392/susumu_RR_Data_Sheet-1206438.pdf" H 4850 1700 50 0001 C CNN F 4 "754-RR0816P-1021D02H" H 4850 1700 50 0001 C CNN "MouserPartNo" 1 4850 1700 1 0 0 -1 $EndComp $Comp L power:GND #PWR058 U 1 1 5FB8ADE7 P 4850 1950 F 0 "#PWR058" H 4850 1700 50 0001 C CNN F 1 "GND" H 4855 1777 50 0000 C CNN F 2 "" H 4850 1950 50 0001 C CNN F 3 "" H 4850 1950 50 0001 C CNN 1 4850 1950 1 0 0 -1 $EndComp Wire Wire Line 4850 1950 4850 1850 Wire Wire Line 4550 1400 4850 1400 Wire Wire Line 4850 1400 4850 1550 Connection ~ 4850 1400 Wire Wire Line 4850 1400 5200 1400 Wire Wire Line 4900 1200 5650 1200 $Comp L Device:L L1 U 1 1 5FB8DD90 P 6000 1200 F 0 "L1" V 6190 1200 50 0000 C CNN F 1 "SRN6028-680M 68u" V 6099 1200 50 0000 C CNN F 2 "Inductor_SMD:L_Bourns-SRN6028" H 6000 1200 50 0001 C CNN F 3 "https://www.mouser.de/datasheet/2/54/srn6028-1391385.pdf" H 6000 1200 50 0001 C CNN F 4 "652-SRN6028-680M" H 6000 1200 50 0001 C CNN "MouserPartNo" 1 6000 1200 0 -1 -1 0 $EndComp Wire Wire Line 5500 1400 6200 1400 Wire Wire Line 6200 1400 6200 1200 Wire Wire Line 6200 1200 6150 1200 Connection ~ 6200 1200 Wire Wire Line 6200 1200 6300 1200 Connection ~ 6950 1200 $Comp L Device:C C34 U 1 1 5FB92D32 P 6950 1750 F 0 "C34" H 6950 1950 50 0000 L CNN F 1 "100n" H 6950 1850 50 0000 L CNN F 2 "Capacitor_SMD:C_1206_3216Metric" H 6988 1600 50 0001 C CNN F 3 "https://search.kemet.com/component-edge/download/datasheet/C1206C104K5RAC7411.pdf" H 6950 1750 50 0001 C CNN F 4 "80-C1206C104K5RACLR" H 6950 1750 50 0001 C CNN "MouserPartNo" 1 6950 1750 1 0 0 -1 $EndComp Wire Wire Line 6950 1900 6950 1950 Wire Wire Line 7350 1900 7350 1950 $Comp L power:GND #PWR062 U 1 1 5FB9593B P 6950 1950 F 0 "#PWR062" H 6950 1700 50 0001 C CNN F 1 "GND" H 6955 1777 50 0000 C CNN F 2 "" H 6950 1950 50 0001 C CNN F 3 "" H 6950 1950 50 0001 C CNN 1 6950 1950 1 0 0 -1 $EndComp $Comp L power:GND #PWR063 U 1 1 5FB95E8D P 7350 1950 F 0 "#PWR063" H 7350 1700 50 0001 C CNN F 1 "GND" H 7355 1777 50 0000 C CNN F 2 "" H 7350 1950 50 0001 C CNN F 3 "" H 7350 1950 50 0001 C CNN 1 7350 1950 1 0 0 -1 $EndComp $Comp L Device:C C32 U 1 1 5FB9BA9E P 6300 1750 F 0 "C32" H 6300 1950 50 0000 L CNN F 1 "22u" H 6300 1850 50 0000 L CNN F 2 "Capacitor_SMD:C_1210_3225Metric" H 6338 1600 50 0001 C CNN F 3 "https://product.tdk.com/info/en/catalog/datasheets/mlcc_commercial_general_en.pdf?ref_disty=mouser" H 6300 1750 50 0001 C CNN F 4 "810-C3225X7R1C226M" H 6300 1750 50 0001 C CNN "MouserPartNo" 1 6300 1750 1 0 0 -1 $EndComp Wire Wire Line 6600 1600 6600 1200 Wire Wire Line 6300 1600 6300 1200 Connection ~ 6300 1200 $Comp L power:GND #PWR060 U 1 1 5FB9DF0B P 6300 1950 F 0 "#PWR060" H 6300 1700 50 0001 C CNN F 1 "GND" H 6305 1777 50 0000 C CNN F 2 "" H 6300 1950 50 0001 C CNN F 3 "" H 6300 1950 50 0001 C CNN 1 6300 1950 1 0 0 -1 $EndComp Wire Wire Line 6300 1950 6300 1900 $Comp L power:GND #PWR061 U 1 1 5FB9ECB4 P 6600 1950 F 0 "#PWR061" H 6600 1700 50 0001 C CNN F 1 "GND" H 6605 1777 50 0000 C CNN F 2 "" H 6600 1950 50 0001 C CNN F 3 "" H 6600 1950 50 0001 C CNN 1 6600 1950 1 0 0 -1 $EndComp Wire Wire Line 6600 1950 6600 1900 $Comp L Device:D_Schottky D4 U 1 1 5FBDAFCE P 5650 1650 F 0 "D4" V 5604 1730 50 0000 L CNN F 1 "MSS1P5" V 5695 1730 50 0000 L CNN F 2 "Diode_SMD:D_TUMD2" H 5650 1650 50 0001 C CNN F 3 "https://www.mouser.de/datasheet/2/427/mss1p6-1768324.pdf" H 5650 1650 50 0001 C CNN F 4 "625-MSS1P5-M3" H 5650 1650 50 0001 C CNN "MouserPartNo" 1 5650 1650 0 1 1 0 $EndComp $Comp L power:GND #PWR059 U 1 1 5FBDB89C P 5650 1950 F 0 "#PWR059" H 5650 1700 50 0001 C CNN F 1 "GND" H 5655 1777 50 0000 C CNN F 2 "" H 5650 1950 50 0001 C CNN F 3 "" H 5650 1950 50 0001 C CNN 1 5650 1950 1 0 0 -1 $EndComp Wire Wire Line 5650 1800 5650 1950 Wire Wire Line 5650 1500 5650 1200 Connection ~ 5650 1200 Wire Wire Line 5650 1200 5850 1200 $Comp L Device:CP C33 U 1 1 600BE8FE P 6600 1750 F 0 "C33" H 6600 1950 50 0000 L CNN F 1 "47u" H 6600 1850 50 0000 L CNN F 2 "Capacitor_SMD:CP_Elec_6.3x5.8" H 6638 1600 50 0001 C CNN F 3 "https://www.mouser.de/datasheet/2/315/RDE0000C1266-1842983.pdf" H 6600 1750 50 0001 C CNN F 4 "667-EEE-FN1V470L" H 6600 1750 50 0001 C CNN "MouserPartNo" 1 6600 1750 1 0 0 -1 $EndComp $Comp L Device:C C35 U 1 1 600BEF69 P 7350 1750 F 0 "C35" H 7350 1950 50 0000 L CNN F 1 "22u" H 7350 1850 50 0000 L CNN F 2 "Capacitor_SMD:C_1210_3225Metric" H 7388 1600 50 0001 C CNN F 3 "https://product.tdk.com/info/en/catalog/datasheets/mlcc_commercial_general_en.pdf?ref_disty=mouser" H 7350 1750 50 0001 C CNN F 4 "810-C3225X7R1C226M" H 7350 1750 50 0001 C CNN "MouserPartNo" 1 7350 1750 1 0 0 -1 $EndComp Text Label 5050 1200 0 50 ~ 0 DCDC_SW Wire Wire Line 6300 1200 6600 1200 Wire Wire Line 6600 1200 6950 1200 Connection ~ 6600 1200 Wire Wire Line 6950 1200 7350 1200 Wire Wire Line 6950 1200 6950 1600 Wire Wire Line 7350 1200 7350 1600 Connection ~ 7350 1200 Wire Wire Line 7350 1200 8050 1200 $EndSCHEMATC