PW2558 Buck Circuit board
- 2023-05-12 15:06:15
- lu Original
- 510
1 Circuit board PCB description：
1.1 Name ： PW2558 BuckCircuit board
1.2 Applications ： Voltage buck converterboard
1.3 VIN input voltage ： 4.5V-55V
1.4 VOUT output voltage ： 12V， 9V， 5V， 3.3V（ The VIN>VOUT condition must be met）
1.5 Introduction to Chip Functions ：
1， Buck chip：PW2558
PW2558A input voltage is 4.5V~55V, you can set the constant voltage output voltage value by R1,R2, current up to 0.8A, package SOT23-6.
2， Circuit diagram ：
Note 1： The blue thick line is the power trace, C1,C2 input capacitor and C5,C4 output capacitor must not be omitted. At the same time C1,C2 should be placed next to 5pins, as close as possible..
Note 2： The red thick line is the power ground, the main points of the drawing board: to be wide, the shorter the distance between the connecting loops at each point.
3， PCB diagram and3Ddisplay diagram
4 ， BOM Material List .
|
Comment |
Designator |
Footprint |
Quantity |
|
100uF 63V SMD Aluminum Capacitors |
C1 |
SMD |
1 |
|
0.1uF 63V 0805 |
C2 |
0805C |
1 |
|
0.1uF 25V 0603 |
C3 |
0603A |
1 |
|
22uF 25V 0805 |
C4 |
0805C |
1 |
|
100uF 25V SMD Aluminum Capacitors |
C5 |
SMD |
1 |
|
NC |
C6 |
0603A |
1 |
|
SS38 SMB |
D1 |
SMB |
1 |
|
0630-4.7UH SMD Inductor |
L1 |
SMD |
1 |
|
2.54 alignment 4PIN，2 lines |
O1 |
DIP |
1 |
|
453K 1% 0603 |
R1 |
0603SL |
1 |
|
100K 1% 0603 |
R2 |
0603SL |
1 |
|
46.4K 1% 0603 |
R3 |
0603SL |
1 |
|
158K 1% 0603 |
R4 |
0603SL |
1 |
|
31K 1% 0603 |
R5 |
0603SL |
1 |
|
100K 5% 0603 |
R6 |
0603SL |
1 |
|
PW2558 |
U1 |
SOT23-6 |
1 |
