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