EESchema Schematic File Version 4
LIBS:Hedgehog-cache
EELAYER 29 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 3 5
Title "Hedgehog"
Date "2019-05-12"
Rev "1.0"
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Text HLabel 3225 3325 0    60   Input ~ 0
VIN
Text HLabel 4275 3525 0    60   Input ~ 0
EN
Text HLabel 7400 3325 2    60   Input ~ 0
VOUT
$Comp
L hedgehog_symbols:TPS54340 U20
U 1 1 590645FD
P 5675 3625
F 0 "U20" H 5675 4075 60  0000 C CNN
F 1 "TPS54340" H 5675 3175 60  0000 C CNN
F 2 "hedgehog_footprints:HSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.1mm_ThermalVias" H 5325 2825 60  0001 C CNN
F 3 "" H 5325 2825 60  0001 C CNN
	1    5675 3625
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C22
U 1 1 590647C4
P 3950 3800
F 0 "C22" H 3800 3875 50  0000 L CNN
F 1 "100n" H 3750 3750 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 3950 3800 50  0001 C CNN
F 3 "" H 3950 3800 50  0001 C CNN
	1    3950 3800
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C23
U 1 1 59064874
P 4625 4075
F 0 "C23" H 4400 4100 50  0000 L CNN
F 1 "2n4" H 4400 4025 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 4625 4075 50  0001 C CNN
F 3 "" H 4625 4075 50  0001 C CNN
	1    4625 4075
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C24
U 1 1 590648E6
P 4800 3925
F 0 "C24" H 4892 3971 50  0000 L CNN
F 1 "22p" H 4892 3880 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 4800 3925 50  0001 C CNN
F 3 "" H 4800 3925 50  0001 C CNN
	1    4800 3925
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C25
U 1 1 59064924
P 6450 3175
F 0 "C25" H 6300 3125 50  0000 C CNN
F 1 "100n" H 6275 3200 50  0000 C CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 6450 3175 50  0001 C CNN
F 3 "" H 6450 3175 50  0001 C CNN
	1    6450 3175
	-1   0    0    1   
$EndComp
$Comp
L Device:C_Small C26
U 1 1 59064990
P 7325 3825
F 0 "C26" H 7417 3871 50  0000 L CNN
F 1 "100µ" H 7417 3780 50  0000 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric" H 7325 3825 50  0001 C CNN
F 3 "" H 7325 3825 50  0001 C CNN
	1    7325 3825
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small R22
U 1 1 59064A14
P 4625 3850
F 0 "R22" H 4425 3900 50  0000 L CNN
F 1 "12k" H 4425 3825 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 4625 3850 50  0001 C CNN
F 3 "" H 4625 3850 50  0001 C CNN
	1    4625 3850
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small R23
U 1 1 59064AB0
P 5100 4075
F 0 "R23" H 5159 4121 50  0000 L CNN
F 1 "82k" H 5159 4030 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 5100 4075 50  0001 C CNN
F 3 "" H 5100 4075 50  0001 C CNN
	1    5100 4075
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small R24
U 1 1 59064B04
P 6975 3675
F 0 "R24" H 7034 3721 50  0000 L CNN
F 1 "180k" H 7034 3630 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 6975 3675 50  0001 C CNN
F 3 "" H 6975 3675 50  0001 C CNN
	1    6975 3675
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Small R25
U 1 1 59064B72
P 6975 3975
F 0 "R25" H 7034 4021 50  0000 L CNN
F 1 "34k" H 7034 3930 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 6975 3975 50  0001 C CNN
F 3 "" H 6975 3975 50  0001 C CNN
	1    6975 3975
	1    0    0    -1  
$EndComp
$Comp
L Device:L_Small L20
U 1 1 59064BF4
P 6825 3325
F 0 "L20" V 6975 3325 50  0000 C CNN
F 1 "4µ7" V 6900 3325 50  0000 C CNN
F 2 "hedgehog_footprints:XAL4030" H 6825 3325 50  0001 C CNN
F 3 "" H 6825 3325 50  0001 C CNN
	1    6825 3325
	0    -1   -1   0   
$EndComp
$Comp
L Device:D_Schottky_Small_ALT D20
U 1 1 59064D44
P 6575 3450
F 0 "D20" V 6529 3518 50  0000 L CNN
F 1 "VSSAF5L45" V 6620 3518 50  0000 L CNN
F 2 "hedgehog_footprints:D_DO-221AC" V 6575 3450 50  0001 C CNN
F 3 "" V 6575 3450 50  0001 C CNN
	1    6575 3450
	0    1    1    0   
$EndComp
Wire Wire Line
	5175 3925 5100 3925
Wire Wire Line
	5100 3925 5100 3975
Wire Wire Line
	4625 3725 4800 3725
Wire Wire Line
	4625 3725 4625 3750
Wire Wire Line
	4625 3950 4625 3975
Wire Wire Line
	4800 3825 4800 3725
Connection ~ 4800 3725
Wire Wire Line
	4275 3525 4350 3525
Wire Wire Line
	3225 3325 3500 3325
Wire Wire Line
	3950 3325 3950 3700
Connection ~ 3950 3325
Wire Wire Line
	6175 3325 6225 3325
Wire Wire Line
	6450 3325 6450 3475
Wire Wire Line
	6450 3475 6175 3475
Wire Wire Line
	6575 3325 6575 3350
Connection ~ 6575 3325
Wire Wire Line
	6925 3325 6975 3325
Wire Wire Line
	6975 3325 6975 3575
Connection ~ 6975 3325
Wire Wire Line
	7325 3325 7325 3725
Connection ~ 7325 3325
Wire Wire Line
	6975 3775 6975 3825
$Comp
L power:GND #PWR07
U 1 1 59066211
P 5675 4300
F 0 "#PWR07" H 5675 4050 50  0001 C CNN
F 1 "GND" H 5680 4127 50  0000 C CNN
F 2 "" H 5675 4300 50  0001 C CNN
F 3 "" H 5675 4300 50  0001 C CNN
	1    5675 4300
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR08
U 1 1 5906623D
P 6575 3575
F 0 "#PWR08" H 6575 3325 50  0001 C CNN
F 1 "GND" H 6575 3425 50  0000 C CNN
F 2 "" H 6575 3575 50  0001 C CNN
F 3 "" H 6575 3575 50  0001 C CNN
	1    6575 3575
	1    0    0    -1  
$EndComp
Wire Wire Line
	6575 3550 6575 3575
Wire Wire Line
	6175 3675 6400 3675
Wire Wire Line
	6400 3675 6400 3825
Wire Wire Line
	6400 3825 6975 3825
Connection ~ 6975 3825
Wire Wire Line
	3950 4250 3950 3900
Wire Wire Line
	4625 4175 4625 4250
Wire Wire Line
	4800 4025 4800 4250
Connection ~ 4800 4250
Wire Wire Line
	5100 4175 5100 4250
Connection ~ 5100 4250
Wire Wire Line
	5675 4300 5675 4250
Wire Wire Line
	7325 4250 7325 3925
Connection ~ 5675 4250
Wire Wire Line
	6975 4075 6975 4250
Connection ~ 6975 4250
Wire Wire Line
	6175 3825 6250 3825
Wire Wire Line
	6250 3825 6250 3925
Connection ~ 6250 4250
Wire Wire Line
	6175 3925 6250 3925
Connection ~ 6250 3925
Text Notes 10575 6525 0    118  ~ 0
Ref: 2x
Wire Wire Line
	4800 3725 5175 3725
Wire Wire Line
	6450 3325 6575 3325
Wire Wire Line
	6575 3325 6725 3325
Wire Wire Line
	6975 3325 7325 3325
Wire Wire Line
	7325 3325 7400 3325
Wire Wire Line
	6975 3825 6975 3875
Wire Wire Line
	4625 4250 4800 4250
Wire Wire Line
	4800 4250 5100 4250
Wire Wire Line
	5100 4250 5675 4250
Wire Wire Line
	5675 4250 6250 4250
Wire Wire Line
	6975 4250 7325 4250
Wire Wire Line
	6250 4250 6975 4250
Wire Wire Line
	6250 3925 6250 4250
$Comp
L Device:C_Small C21
U 1 1 5CECD2BB
P 3700 3800
F 0 "C21" H 3550 3875 50  0000 L CNN
F 1 "10µ" H 3550 3750 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 3700 3800 50  0001 C CNN
F 3 "" H 3700 3800 50  0001 C CNN
	1    3700 3800
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C20
U 1 1 5CECD4E2
P 3500 3800
F 0 "C20" H 3350 3875 50  0000 L CNN
F 1 "10µ" H 3350 3750 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 3500 3800 50  0001 C CNN
F 3 "" H 3500 3800 50  0001 C CNN
	1    3500 3800
	1    0    0    -1  
$EndComp
Wire Wire Line
	3700 3700 3700 3325
Connection ~ 3700 3325
Wire Wire Line
	3700 3325 3950 3325
Wire Wire Line
	3500 3700 3500 3325
Connection ~ 3500 3325
Wire Wire Line
	3500 3325 3700 3325
Wire Wire Line
	3700 3900 3700 4250
Wire Wire Line
	3700 4250 3950 4250
Connection ~ 3950 4250
Wire Wire Line
	3500 3900 3500 4250
Wire Wire Line
	3500 4250 3700 4250
Connection ~ 3700 4250
$Comp
L Device:R_Small R21
U 1 1 5BD9CEE1
P 4350 3850
F 0 "R21" H 4150 3900 50  0000 L CNN
F 1 "1k8" H 4150 3825 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 4350 3850 50  0001 C CNN
F 3 "" H 4350 3850 50  0001 C CNN
	1    4350 3850
	1    0    0    -1  
$EndComp
Wire Wire Line
	3950 4250 4350 4250
Connection ~ 4625 4250
Wire Wire Line
	3950 3325 5175 3325
Wire Wire Line
	4350 3950 4350 4250
Connection ~ 4350 4250
Wire Wire Line
	4350 4250 4625 4250
Wire Wire Line
	4350 3750 4350 3525
Connection ~ 4350 3525
Wire Wire Line
	4350 3525 5175 3525
$Comp
L Device:R_Small R26
U 1 1 5BF09FBC
P 6225 3175
F 0 "R26" H 6025 3225 50  0000 L CNN
F 1 "8R2" H 6025 3150 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 6225 3175 50  0001 C CNN
F 3 "" H 6225 3175 50  0001 C CNN
	1    6225 3175
	1    0    0    -1  
$EndComp
Wire Wire Line
	6450 3275 6450 3325
Connection ~ 6450 3325
Wire Wire Line
	6225 3275 6225 3325
Wire Wire Line
	6225 3075 6225 3050
Wire Wire Line
	6225 3050 6450 3050
Wire Wire Line
	6450 3050 6450 3075
$EndSCHEMATC