EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 3 9
Title "MAX80"
Date "2021-02-22"
Rev "0.01"
Comp "Peter o Per"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Connector:Barrel_Jack_Switch J2
U 1 1 6014204A
P 1450 1950
F 0 "J2" H 1507 2267 50  0000 C CNN
F 1 "Barrel_Jack_Switch" H 1500 2200 50  0000 C CNN
F 2 "max80:BarrelJack_Wuerth_6941xx301002" H 1500 1910 50  0001 C CNN
F 3 "~" H 1500 1910 50  0001 C CNN
	1    1450 1950
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR0106
U 1 1 601425EC
P 2450 1700
F 0 "#PWR0106" H 2450 1550 50  0001 C CNN
F 1 "+5V" H 2465 1873 50  0000 C CNN
F 2 "" H 2450 1700 50  0001 C CNN
F 3 "" H 2450 1700 50  0001 C CNN
	1    2450 1700
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0107
U 1 1 60142E07
P 2000 2150
F 0 "#PWR0107" H 2000 1900 50  0001 C CNN
F 1 "GND" H 2005 1977 50  0000 C CNN
F 2 "" H 2000 2150 50  0001 C CNN
F 3 "" H 2000 2150 50  0001 C CNN
	1    2000 2150
	1    0    0    -1  
$EndComp
Wire Wire Line
	1750 1950 2000 1950
Wire Wire Line
	2000 1950 2000 2050
Wire Wire Line
	1750 2050 2000 2050
Connection ~ 2000 2050
Wire Wire Line
	2000 2050 2000 2150
$Comp
L Device:C_Small C38
U 1 1 6025CAC8
P 6000 3300
F 0 "C38" V 5950 3150 50  0000 C CNN
F 1 "100nF" V 5950 3500 50  0000 C CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 6000 3300 50  0001 C CNN
F 3 "~" H 6000 3300 50  0001 C CNN
F 4 "C1525" H 6000 3300 50  0001 C CNN "LCSC"
	1    6000 3300
	0    1    1    0   
$EndComp
$Comp
L Device:D_Schottky D24
U 1 1 6025D921
P 6450 3900
F 0 "D24" V 6350 3700 50  0000 L CNN
F 1 "MBRA340T" V 6550 3500 50  0000 L CNN
F 2 "Diode_SMD:D_SMA" H 6450 3900 50  0001 C CNN
F 3 "~" H 6450 3900 50  0001 C CNN
F 4 "C26178" V 6450 3900 50  0001 C CNN "LCSC"
	1    6450 3900
	0    1    1    0   
$EndComp
Wire Wire Line
	5650 3400 6250 3400
$Comp
L Device:R_Small R35
U 1 1 6025EAB6
P 7450 3550
F 0 "R35" H 7250 3600 50  0000 L CNN
F 1 "10.2k" H 7200 3500 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" H 7450 3550 50  0001 C CNN
F 3 "~" H 7450 3550 50  0001 C CNN
F 4 "C25744" H 7450 3550 50  0001 C CNN "LCSC"
	1    7450 3550
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small R36
U 1 1 6025F1BC
P 7450 3900
F 0 "R36" H 7250 3950 50  0000 L CNN
F 1 "3.24k" H 7200 3850 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" H 7450 3900 50  0001 C CNN
F 3 "~" H 7450 3900 50  0001 C CNN
F 4 "C15172" H 7450 3900 50  0001 C CNN "LCSC"
	1    7450 3900
	1    0    0    -1  
$EndComp
$Comp
L max80:TPS54331 U8
U 1 1 60260C96
P 5150 3500
F 0 "U8" H 5150 3967 50  0000 C CNN
F 1 "TPS54331" H 5150 3876 50  0000 C CNN
F 2 "Package_SO:SOIC-8_3.9x4.9mm_P1.27mm" H 5200 3150 50  0001 L CIN
F 3 "http://www.ti.com/lit/ds/symlink/tps5430.pdf" H 5150 3500 50  0001 C CNN
F 4 "C9865" H 5150 3500 50  0001 C CNN "LCSC"
	1    5150 3500
	1    0    0    -1  
$EndComp
Wire Wire Line
	5650 3300 5900 3300
Wire Wire Line
	6100 3300 6250 3300
Wire Wire Line
	6250 3300 6250 3400
Connection ~ 6250 3400
Wire Wire Line
	6250 3400 6450 3400
Wire Wire Line
	6450 3400 6750 3400
Wire Wire Line
	7450 3400 7450 3450
Connection ~ 6450 3400
$Comp
L Device:C_Small C58
U 1 1 60264C69
P 7900 3700
F 0 "C58" H 7700 3800 50  0000 L CNN
F 1 "47uF" H 7700 3600 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 7900 3700 50  0001 C CNN
F 3 "~" H 7900 3700 50  0001 C CNN
F 4 "C16780" H 7900 3700 50  0001 C CNN "LCSC"
	1    7900 3700
	1    0    0    -1  
$EndComp
Wire Wire Line
	7450 3400 7900 3400
Wire Wire Line
	7900 3400 7900 3600
Connection ~ 7450 3400
Wire Wire Line
	5050 3900 5050 4100
Wire Wire Line
	5050 4100 6450 4100
Wire Wire Line
	7450 4100 7450 4000
Wire Wire Line
	7450 4100 7900 4100
Wire Wire Line
	7900 4100 7900 3800
Connection ~ 7450 4100
Connection ~ 7900 4100
Connection ~ 7900 3400
Connection ~ 6450 4100
Wire Wire Line
	6450 4100 7450 4100
Wire Wire Line
	7450 3700 7450 3650
Wire Wire Line
	7450 3700 7450 3800
Connection ~ 7450 3700
$Comp
L Device:C_Small C37
U 1 1 6026CBED
P 5850 4400
F 0 "C37" H 5650 4500 50  0000 L CNN
F 1 "5600pF" H 5550 4300 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 5850 4400 50  0001 C CNN
F 3 "~" H 5850 4400 50  0001 C CNN
F 4 "C170143" H 5850 4400 50  0001 C CNN "LCSC"
	1    5850 4400
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C57
U 1 1 6026D80D
P 6250 4650
F 0 "C57" H 6050 4750 50  0000 L CNN
F 1 "390pF" H 6000 4550 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 6250 4650 50  0001 C CNN
F 3 "~" H 6250 4650 50  0001 C CNN
F 4 "C363517" H 6250 4650 50  0001 C CNN "LCSC"
	1    6250 4650
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small R34
U 1 1 6026DD71
P 5850 4750
F 0 "R34" H 5650 4850 50  0000 L CNN
F 1 "12.7k" H 5600 4650 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" H 5850 4750 50  0001 C CNN
F 3 "~" H 5850 4750 50  0001 C CNN
F 4 "C25752" H 5850 4750 50  0001 C CNN "LCSC"
	1    5850 4750
	1    0    0    -1  
$EndComp
Wire Wire Line
	5650 3600 5850 3600
Wire Wire Line
	5850 3600 5850 4250
Wire Wire Line
	5850 4250 6250 4250
Wire Wire Line
	6250 4250 6250 4550
Connection ~ 5850 4250
Wire Wire Line
	5850 4250 5850 4300
Wire Wire Line
	5850 4500 5850 4650
Wire Wire Line
	5850 4850 5850 5000
Wire Wire Line
	6250 5000 6250 4750
$Comp
L power:GND #PWR0103
U 1 1 60272B15
P 5850 5050
F 0 "#PWR0103" H 5850 4800 50  0001 C CNN
F 1 "GND" H 5855 4877 50  0000 C CNN
F 2 "" H 5850 5050 50  0001 C CNN
F 3 "" H 5850 5050 50  0001 C CNN
	1    5850 5050
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0105
U 1 1 6027423A
P 7450 4200
F 0 "#PWR0105" H 7450 3950 50  0001 C CNN
F 1 "GND" H 7455 4027 50  0000 C CNN
F 2 "" H 7450 4200 50  0001 C CNN
F 3 "" H 7450 4200 50  0001 C CNN
	1    7450 4200
	1    0    0    -1  
$EndComp
Wire Wire Line
	7450 4100 7450 4200
$Comp
L Device:C_Small C36
U 1 1 60276365
P 4200 3900
F 0 "C36" H 4000 4000 50  0000 L CNN
F 1 "15nF" H 3950 3800 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 4200 3900 50  0001 C CNN
F 3 "~" H 4200 3900 50  0001 C CNN
F 4 "C1548" H 4200 3900 50  0001 C CNN "LCSC"
	1    4200 3900
	1    0    0    -1  
$EndComp
Wire Wire Line
	4200 3800 4200 3600
Wire Wire Line
	4200 3600 4650 3600
$Comp
L power:+5V #PWR0159
U 1 1 6027ABED
P 2950 2950
F 0 "#PWR0159" H 2950 2800 50  0001 C CNN
F 1 "+5V" H 2965 3123 50  0000 C CNN
F 2 "" H 2950 2950 50  0001 C CNN
F 3 "" H 2950 2950 50  0001 C CNN
	1    2950 2950
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR0104
U 1 1 6013C2A9
P 8700 3300
F 0 "#PWR0104" H 8700 3150 50  0001 C CNN
F 1 "+3V3" H 8715 3473 50  0000 C CNN
F 2 "" H 8700 3300 50  0001 C CNN
F 3 "" H 8700 3300 50  0001 C CNN
	1    8700 3300
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small R32
U 1 1 602875D0
P 3700 3550
F 0 "R32" H 3500 3600 50  0000 L CNN
F 1 "330k" H 3450 3500 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" H 3700 3550 50  0001 C CNN
F 3 "~" H 3700 3550 50  0001 C CNN
F 4 "C25778" H 3700 3550 50  0001 C CNN "LCSC"
	1    3700 3550
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small R33
U 1 1 60287738
P 3700 3900
F 0 "R33" H 3500 3950 50  0000 L CNN
F 1 "120k" H 3450 3850 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" H 3700 3900 50  0001 C CNN
F 3 "~" H 3700 3900 50  0001 C CNN
F 4 "C25750" H 3700 3900 50  0001 C CNN "LCSC"
	1    3700 3900
	1    0    0    -1  
$EndComp
Wire Wire Line
	3700 4100 3700 4000
Wire Wire Line
	3700 3700 3700 3650
Wire Wire Line
	3700 3700 3700 3800
Connection ~ 3700 3700
Wire Wire Line
	3700 3300 3700 3450
$Comp
L Device:C_Small C35
U 1 1 60299F43
P 3250 3650
F 0 "C35" H 3100 3750 50  0000 L CNN
F 1 "47uF" H 3050 3550 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 3250 3650 50  0001 C CNN
F 3 "~" H 3250 3650 50  0001 C CNN
F 4 "C16780" H 3250 3650 50  0001 C CNN "LCSC"
	1    3250 3650
	1    0    0    -1  
$EndComp
Wire Wire Line
	3250 3550 3250 3300
Wire Wire Line
	3250 3300 3700 3300
Wire Wire Line
	5050 4100 4200 4100
Wire Wire Line
	3250 4100 3250 3750
Connection ~ 5050 4100
Connection ~ 3700 4100
Wire Wire Line
	3700 4100 3250 4100
Wire Wire Line
	4200 4000 4200 4100
Connection ~ 4200 4100
Wire Wire Line
	4200 4100 3700 4100
$Comp
L Device:L L2
U 1 1 602A5F6B
P 6900 3400
F 0 "L2" V 7000 3400 50  0000 C CNN
F 1 "15uH" V 6850 3400 50  0000 C CNN
F 2 "max80:L_6.3x6.3_H3" H 6900 3400 50  0001 C CNN
F 3 "~" H 6900 3400 50  0001 C CNN
F 4 "C83374" V 6900 3400 50  0001 C CNN "LCSC"
	1    6900 3400
	0    -1   -1   0   
$EndComp
Wire Wire Line
	7050 3400 7450 3400
$Comp
L Device:CP_Small C61
U 1 1 602A7E22
P 8300 3700
F 0 "C61" H 8100 3800 50  0000 L CNN
F 1 "220uF" H 8050 3600 50  0000 L CNN
F 2 "Capacitor_SMD:CP_Elec_6.3x7.7" H 8300 3700 50  0001 C CNN
F 3 "~" H 8300 3700 50  0001 C CNN
F 4 "C127327" H 8300 3700 50  0001 C CNN "LCSC"
	1    8300 3700
	1    0    0    -1  
$EndComp
$Comp
L Device:CP_Small C60
U 1 1 602A83A7
P 2950 3650
F 0 "C60" H 2700 3750 50  0000 L CNN
F 1 "220uF" H 2700 3550 50  0000 L CNN
F 2 "Capacitor_SMD:CP_Elec_6.3x7.7" H 2950 3650 50  0001 C CNN
F 3 "~" H 2950 3650 50  0001 C CNN
F 4 "C127327" H 2950 3650 50  0001 C CNN "LCSC"
	1    2950 3650
	1    0    0    -1  
$EndComp
Wire Wire Line
	2950 3300 3250 3300
Wire Wire Line
	2950 3300 2950 3550
Connection ~ 3250 3300
Wire Wire Line
	2950 3750 2950 4100
Wire Wire Line
	2950 4100 3250 4100
Connection ~ 3250 4100
Wire Wire Line
	8700 3400 8700 3300
$Comp
L Device:D_Schottky D25
U 1 1 6040C80A
P 2200 1850
F 0 "D25" H 2250 1750 50  0000 R CNN
F 1 "MBRA340T" H 2300 2000 50  0000 R CNN
F 2 "Diode_SMD:D_SMA" H 2200 1850 50  0001 C CNN
F 3 "~" H 2200 1850 50  0001 C CNN
F 4 "C26178" V 2200 1850 50  0001 C CNN "LCSC"
	1    2200 1850
	-1   0    0    1   
$EndComp
Connection ~ 2950 3300
Wire Wire Line
	7900 4100 8300 4100
Wire Wire Line
	7900 3400 8300 3400
Connection ~ 3700 3300
Wire Wire Line
	3700 3300 4650 3300
Wire Wire Line
	3700 3700 4650 3700
Wire Wire Line
	8300 3400 8300 3600
Connection ~ 8300 3400
Wire Wire Line
	8300 3400 8700 3400
Wire Wire Line
	8300 3800 8300 4100
$Comp
L Device:LED D26
U 1 1 6024C492
P 8700 3900
F 0 "D26" V 8750 4150 50  0000 R CNN
F 1 "LED-B" V 8650 4250 50  0000 R CNN
F 2 "LED_SMD:LED_0603_1608Metric" H 8700 3900 50  0001 C CNN
F 3 "~" H 8700 3900 50  0001 C CNN
F 4 "C72041" H 8700 3900 50  0001 C CNN "LCSC"
	1    8700 3900
	0    -1   -1   0   
$EndComp
$Comp
L Device:R_Small R9
U 1 1 6024D9C9
P 8700 3600
F 0 "R9" H 8550 3650 50  0000 L CNN
F 1 "1k" H 8550 3550 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" H 8700 3600 50  0001 C CNN
F 3 "~" H 8700 3600 50  0001 C CNN
F 4 "C11702" H 8700 3600 50  0001 C CNN "LCSC"
	1    8700 3600
	1    0    0    -1  
$EndComp
Wire Wire Line
	8700 3400 8700 3500
Connection ~ 8700 3400
Wire Wire Line
	8700 3700 8700 3750
Wire Wire Line
	8300 4100 8700 4100
Wire Wire Line
	8700 4100 8700 4050
Connection ~ 8300 4100
Wire Wire Line
	1750 1850 2050 1850
Wire Wire Line
	2350 1850 2450 1850
Wire Wire Line
	2450 1850 2450 1700
Wire Wire Line
	2950 2950 2950 3300
Wire Wire Line
	6450 4050 6450 4100
Wire Wire Line
	5650 3700 7450 3700
Wire Wire Line
	6450 3400 6450 3750
Wire Wire Line
	5850 5000 5850 5050
Connection ~ 5850 5000
Wire Wire Line
	5850 5000 6250 5000
$EndSCHEMATC