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Input Power Source Switching (USB / Solar)
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Files
Schematic
Layout
Preview
0
0
0
J3
C1
Capacitance
10uF
R9
Resistance
20kΩ
R8
Resistance
2kΩ
R7
Resistance
15kΩ
R6
Resistance
150kΩ
C4
Capacitance
4u7 F
R1
Resistance
3kΩ
C2
Capacitance
10uF
C3
Capacitance
100nF
SETTING OUTPUT VOLTAGE
Line 1
------------------------------------------------------------
Line 2
The internal reference VREF is typically 0.6V. The output voltage is divided by a resistor divider,R1 and R2 to the FB pin.
Line 3
Vout = Vref x (1 + R6/R9)
Line 4
------------------------- AND ---------------------------
Line 5
Vout = Vref x (1 + R6/(R1+R4))
D1
R2
Resistance
1k5 Ω
C8
Capacitance
68pF
J1
D4
R4
Resistance
4k7 Ω
C10
Capacitance
22uF
C9
Capacitance
100nF
R3
Resistance
68kΩ
C7
Capacitance
22uF
D3
R5
Resistance
6k8 Ω
C6
Capacitance
100nF
C5
Capacitance
10uF
U4
IC1
L1
Inductance
10uH
L2
Inductance
2u2 H
U1
Manufacturer Part Number
RT8059GJ5
VSOLAR
VUSB
VBAT
+3V3
VBAT
D5
Color
Red
VBAT
SW1
D2
Color
Green
+3V3
12_5V
VBAT
VSOLAR
VUSB
12_5V
J4
J2
U3
Manufacturer Part Number
SY6280A AC
Project
Input Power Source Switching (USB / Solar)