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 1600 3050
F 0 "J2" H 1657 3367 50  0000 C CNN
F 1 "Barrel_Jack_Switch" H 1650 3300 50  0000 C CNN
F 2 "max80:BarrelJack_Wuerth_6941xx301002" H 1650 3010 50  0001 C CNN
F 3 "~" H 1650 3010 50  0001 C CNN
	1    1600 3050
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR0106
U 1 1 601425EC
P 2600 2800
F 0 "#PWR0106" H 2600 2650 50  0001 C CNN
F 1 "+5V" H 2615 2973 50  0000 C CNN
F 2 "" H 2600 2800 50  0001 C CNN
F 3 "" H 2600 2800 50  0001 C CNN
	1    2600 2800
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0107
U 1 1 60142E07
P 2150 3250
F 0 "#PWR0107" H 2150 3000 50  0001 C CNN
F 1 "GND" H 2155 3077 50  0000 C CNN
F 2 "" H 2150 3250 50  0001 C CNN
F 3 "" H 2150 3250 50  0001 C CNN
	1    2150 3250
	1    0    0    -1  
$EndComp
Wire Wire Line
	1900 3050 2150 3050
Wire Wire Line
	2150 3050 2150 3150
Wire Wire Line
	1900 3150 2150 3150
Connection ~ 2150 3150
Wire Wire Line
	2150 3150 2150 3250
$Comp
L Device:C_Small C38
U 1 1 6025CAC8
P 5150 4200
F 0 "C38" V 5100 4050 50  0000 C CNN
F 1 "100nF" V 5100 4400 50  0000 C CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 5150 4200 50  0001 C CNN
F 3 "~" H 5150 4200 50  0001 C CNN
F 4 "C1525" H 5150 4200 50  0001 C CNN "LCSC"
	1    5150 4200
	0    1    1    0   
$EndComp
$Comp
L Device:D_Schottky D24
U 1 1 6025D921
P 5600 4800
F 0 "D24" V 5500 4600 50  0000 L CNN
F 1 "MBRA340T" V 5700 4400 50  0000 L CNN
F 2 "Diode_SMD:D_SMA" H 5600 4800 50  0001 C CNN
F 3 "~" H 5600 4800 50  0001 C CNN
F 4 "C26178" V 5600 4800 50  0001 C CNN "LCSC"
	1    5600 4800
	0    1    1    0   
$EndComp
Wire Wire Line
	4800 4300 5400 4300
$Comp
L Device:R_Small R35
U 1 1 6025EAB6
P 6600 4450
F 0 "R35" H 6400 4500 50  0000 L CNN
F 1 "10.2k" H 6350 4400 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" H 6600 4450 50  0001 C CNN
F 3 "~" H 6600 4450 50  0001 C CNN
F 4 "C25744" H 6600 4450 50  0001 C CNN "LCSC"
	1    6600 4450
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small R36
U 1 1 6025F1BC
P 6600 4800
F 0 "R36" H 6400 4850 50  0000 L CNN
F 1 "3.24k" H 6350 4750 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" H 6600 4800 50  0001 C CNN
F 3 "~" H 6600 4800 50  0001 C CNN
F 4 "C15172" H 6600 4800 50  0001 C CNN "LCSC"
	1    6600 4800
	1    0    0    -1  
$EndComp
$Comp
L max80:TPS54331 U8
U 1 1 60260C96
P 4300 4400
F 0 "U8" H 4300 4867 50  0000 C CNN
F 1 "TPS54331" H 4300 4776 50  0000 C CNN
F 2 "Package_SO:SOIC-8_3.9x4.9mm_P1.27mm" H 4350 4050 50  0001 L CIN
F 3 "http://www.ti.com/lit/ds/symlink/tps5430.pdf" H 4300 4400 50  0001 C CNN
F 4 "C9865" H 4300 4400 50  0001 C CNN "LCSC"
	1    4300 4400
	1    0    0    -1  
$EndComp
Wire Wire Line
	4800 4200 5050 4200
Wire Wire Line
	5250 4200 5400 4200
Wire Wire Line
	5400 4200 5400 4300
Connection ~ 5400 4300
Wire Wire Line
	5400 4300 5600 4300
Wire Wire Line
	5600 4300 5900 4300
Wire Wire Line
	6600 4300 6600 4350
Connection ~ 5600 4300
$Comp
L Device:C_Small C58
U 1 1 60264C69
P 7050 4600
F 0 "C58" H 6850 4700 50  0000 L CNN
F 1 "47uF" H 6850 4500 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 7050 4600 50  0001 C CNN
F 3 "~" H 7050 4600 50  0001 C CNN
F 4 "C16780" H 7050 4600 50  0001 C CNN "LCSC"
	1    7050 4600
	1    0    0    -1  
$EndComp
Wire Wire Line
	6600 4300 7050 4300
Wire Wire Line
	7050 4300 7050 4500
Connection ~ 6600 4300
Wire Wire Line
	4200 4800 4200 5000
Wire Wire Line
	4200 5000 5600 5000
Wire Wire Line
	6600 5000 6600 4900
Wire Wire Line
	6600 5000 7050 5000
Wire Wire Line
	7050 5000 7050 4700
Connection ~ 6600 5000
Connection ~ 7050 5000
Connection ~ 7050 4300
Connection ~ 5600 5000
Wire Wire Line
	5600 5000 6600 5000
Wire Wire Line
	6600 4600 6600 4550
Wire Wire Line
	6600 4600 6600 4700
Connection ~ 6600 4600
$Comp
L Device:C_Small C37
U 1 1 6026CBED
P 5000 5300
F 0 "C37" H 4800 5400 50  0000 L CNN
F 1 "5600pF" H 4700 5200 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 5000 5300 50  0001 C CNN
F 3 "~" H 5000 5300 50  0001 C CNN
F 4 "C170143" H 5000 5300 50  0001 C CNN "LCSC"
	1    5000 5300
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C57
U 1 1 6026D80D
P 5400 5550
F 0 "C57" H 5200 5650 50  0000 L CNN
F 1 "390pF" H 5150 5450 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 5400 5550 50  0001 C CNN
F 3 "~" H 5400 5550 50  0001 C CNN
F 4 "C363517" H 5400 5550 50  0001 C CNN "LCSC"
	1    5400 5550
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small R34
U 1 1 6026DD71
P 5000 5650
F 0 "R34" H 4800 5750 50  0000 L CNN
F 1 "12.7k" H 4750 5550 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" H 5000 5650 50  0001 C CNN
F 3 "~" H 5000 5650 50  0001 C CNN
F 4 "C25752" H 5000 5650 50  0001 C CNN "LCSC"
	1    5000 5650
	1    0    0    -1  
$EndComp
Wire Wire Line
	4800 4500 5000 4500
Wire Wire Line
	5000 4500 5000 5150
Wire Wire Line
	5000 5150 5400 5150
Wire Wire Line
	5400 5150 5400 5450
Connection ~ 5000 5150
Wire Wire Line
	5000 5150 5000 5200
Wire Wire Line
	5000 5400 5000 5550
Wire Wire Line
	5000 5750 5000 5900
Wire Wire Line
	5400 5900 5400 5650
$Comp
L power:GND #PWR0103
U 1 1 60272B15
P 5000 5950
F 0 "#PWR0103" H 5000 5700 50  0001 C CNN
F 1 "GND" H 5005 5777 50  0000 C CNN
F 2 "" H 5000 5950 50  0001 C CNN
F 3 "" H 5000 5950 50  0001 C CNN
	1    5000 5950
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0105
U 1 1 6027423A
P 6600 5100
F 0 "#PWR0105" H 6600 4850 50  0001 C CNN
F 1 "GND" H 6605 4927 50  0000 C CNN
F 2 "" H 6600 5100 50  0001 C CNN
F 3 "" H 6600 5100 50  0001 C CNN
	1    6600 5100
	1    0    0    -1  
$EndComp
Wire Wire Line
	6600 5000 6600 5100
$Comp
L Device:C_Small C36
U 1 1 60276365
P 3350 4800
F 0 "C36" H 3150 4900 50  0000 L CNN
F 1 "15nF" H 3100 4700 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 3350 4800 50  0001 C CNN
F 3 "~" H 3350 4800 50  0001 C CNN
F 4 "C1548" H 3350 4800 50  0001 C CNN "LCSC"
	1    3350 4800
	1    0    0    -1  
$EndComp
Wire Wire Line
	3350 4700 3350 4500
Wire Wire Line
	3350 4500 3800 4500
$Comp
L power:+5V #PWR0159
U 1 1 6027ABED
P 2100 3850
F 0 "#PWR0159" H 2100 3700 50  0001 C CNN
F 1 "+5V" H 2115 4023 50  0000 C CNN
F 2 "" H 2100 3850 50  0001 C CNN
F 3 "" H 2100 3850 50  0001 C CNN
	1    2100 3850
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR0104
U 1 1 6013C2A9
P 7850 4200
F 0 "#PWR0104" H 7850 4050 50  0001 C CNN
F 1 "+3V3" H 7865 4373 50  0000 C CNN
F 2 "" H 7850 4200 50  0001 C CNN
F 3 "" H 7850 4200 50  0001 C CNN
	1    7850 4200
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small R32
U 1 1 602875D0
P 2850 4450
F 0 "R32" H 2650 4500 50  0000 L CNN
F 1 "330k" H 2600 4400 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" H 2850 4450 50  0001 C CNN
F 3 "~" H 2850 4450 50  0001 C CNN
F 4 "C25778" H 2850 4450 50  0001 C CNN "LCSC"
	1    2850 4450
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small R33
U 1 1 60287738
P 2850 4800
F 0 "R33" H 2650 4850 50  0000 L CNN
F 1 "120k" H 2600 4750 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" H 2850 4800 50  0001 C CNN
F 3 "~" H 2850 4800 50  0001 C CNN
F 4 "C25750" H 2850 4800 50  0001 C CNN "LCSC"
	1    2850 4800
	1    0    0    -1  
$EndComp
Wire Wire Line
	2850 5000 2850 4900
Wire Wire Line
	2850 4600 2850 4550
Wire Wire Line
	2850 4600 2850 4700
Connection ~ 2850 4600
Wire Wire Line
	2850 4200 2850 4350
$Comp
L Device:C_Small C35
U 1 1 60299F43
P 2400 4550
F 0 "C35" H 2250 4650 50  0000 L CNN
F 1 "47uF" H 2200 4450 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 2400 4550 50  0001 C CNN
F 3 "~" H 2400 4550 50  0001 C CNN
F 4 "C16780" H 2400 4550 50  0001 C CNN "LCSC"
	1    2400 4550
	1    0    0    -1  
$EndComp
Wire Wire Line
	2400 4450 2400 4200
Wire Wire Line
	2400 4200 2850 4200
Wire Wire Line
	4200 5000 3350 5000
Wire Wire Line
	2400 5000 2400 4650
Connection ~ 4200 5000
Connection ~ 2850 5000
Wire Wire Line
	2850 5000 2400 5000
Wire Wire Line
	3350 4900 3350 5000
Connection ~ 3350 5000
Wire Wire Line
	3350 5000 2850 5000
$Comp
L Device:L L2
U 1 1 602A5F6B
P 6050 4300
F 0 "L2" V 6150 4300 50  0000 C CNN
F 1 "15uH" V 6000 4300 50  0000 C CNN
F 2 "max80:L_6.3x6.3_H3" H 6050 4300 50  0001 C CNN
F 3 "~" H 6050 4300 50  0001 C CNN
F 4 "C83374" V 6050 4300 50  0001 C CNN "LCSC"
	1    6050 4300
	0    -1   -1   0   
$EndComp
Wire Wire Line
	6200 4300 6600 4300
$Comp
L Device:CP_Small C61
U 1 1 602A7E22
P 7450 4600
F 0 "C61" H 7250 4700 50  0000 L CNN
F 1 "220uF" H 7200 4500 50  0000 L CNN
F 2 "Capacitor_SMD:CP_Elec_6.3x5.4" H 7450 4600 50  0001 C CNN
F 3 "~" H 7450 4600 50  0001 C CNN
F 4 "C88673" H 7450 4600 50  0001 C CNN "LCSC"
	1    7450 4600
	1    0    0    -1  
$EndComp
$Comp
L Device:CP_Small C60
U 1 1 602A83A7
P 2100 4550
F 0 "C60" H 1850 4650 50  0000 L CNN
F 1 "220uF" H 1850 4450 50  0000 L CNN
F 2 "Capacitor_SMD:CP_Elec_6.3x5.4" H 2100 4550 50  0001 C CNN
F 3 "~" H 2100 4550 50  0001 C CNN
F 4 "C88673" H 2100 4550 50  0001 C CNN "LCSC"
	1    2100 4550
	1    0    0    -1  
$EndComp
Wire Wire Line
	2100 4200 2400 4200
Wire Wire Line
	2100 4200 2100 4450
Connection ~ 2400 4200
Wire Wire Line
	2100 4650 2100 5000
Wire Wire Line
	2100 5000 2400 5000
Connection ~ 2400 5000
Wire Wire Line
	7850 4300 7850 4200
$Comp
L Device:D_Schottky D25
U 1 1 6040C80A
P 2350 2950
F 0 "D25" H 2400 2850 50  0000 R CNN
F 1 "MBRA340T" H 2450 3100 50  0000 R CNN
F 2 "Diode_SMD:D_SMA" H 2350 2950 50  0001 C CNN
F 3 "~" H 2350 2950 50  0001 C CNN
F 4 "C26178" V 2350 2950 50  0001 C CNN "LCSC"
	1    2350 2950
	-1   0    0    1   
$EndComp
Connection ~ 2100 4200
Wire Wire Line
	7050 5000 7450 5000
Wire Wire Line
	7050 4300 7450 4300
Connection ~ 2850 4200
Wire Wire Line
	2850 4200 3800 4200
Wire Wire Line
	2850 4600 3800 4600
Wire Wire Line
	7450 4300 7450 4500
Connection ~ 7450 4300
Wire Wire Line
	7450 4300 7850 4300
Wire Wire Line
	7450 4700 7450 5000
$Comp
L Device:LED D26
U 1 1 6024C492
P 7850 4800
F 0 "D26" V 7900 5050 50  0000 R CNN
F 1 "LED-B" V 7800 5150 50  0000 R CNN
F 2 "LED_SMD:LED_0603_1608Metric" H 7850 4800 50  0001 C CNN
F 3 "~" H 7850 4800 50  0001 C CNN
F 4 "C72041" H 7850 4800 50  0001 C CNN "LCSC"
	1    7850 4800
	0    -1   -1   0   
$EndComp
$Comp
L Device:R_Small R9
U 1 1 6024D9C9
P 7850 4500
F 0 "R9" H 7700 4550 50  0000 L CNN
F 1 "1k" H 7700 4450 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" H 7850 4500 50  0001 C CNN
F 3 "~" H 7850 4500 50  0001 C CNN
F 4 "C11702" H 7850 4500 50  0001 C CNN "LCSC"
	1    7850 4500
	1    0    0    -1  
$EndComp
Wire Wire Line
	7850 4300 7850 4400
Connection ~ 7850 4300
Wire Wire Line
	7850 4600 7850 4650
Wire Wire Line
	7450 5000 7850 5000
Wire Wire Line
	7850 5000 7850 4950
Connection ~ 7450 5000
Wire Wire Line
	1900 2950 2200 2950
Wire Wire Line
	2500 2950 2600 2950
Wire Wire Line
	2600 2950 2600 2800
Wire Wire Line
	2100 3850 2100 4200
Wire Wire Line
	5600 4950 5600 5000
Wire Wire Line
	4800 4600 6600 4600
Wire Wire Line
	5600 4300 5600 4650
Wire Wire Line
	5000 5900 5000 5950
Connection ~ 5000 5900
Wire Wire Line
	5000 5900 5400 5900
$EndSCHEMATC