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STD MP2307 USB-C Buck Converter
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License: CC-BY-SA 3.0
Description
A slightly different approach to USB-C power delivery by combining a PD maximum voltage trigger (IP2721, up to 20V) and a buck converter (MP2307). The output voltage can be selected via the voltage divider (R5 + R6). The maximum output current is 3A.
Design Drawing
schematic diagram
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| ID | Name | Designator | Footprint | Quantity | BOM_Manufacturer Part | BOM_Supplier | BOM_Manufacturer | BOM_Supplier Part |
|---|---|---|---|---|---|---|---|---|
| 1 | KF301-2P | X1 | KF301-2P | 1 | KF301-5.0-2P | LCSC | Cixi Kefa Elec | C474881 |
| 2 | MP2307DN-LF-Z | U2 | SOP-8_EP_150MIL | 1 | MP2307DN-LF-Z | LCSC | MPS | C18921 |
| 3 | 120k | R6 | 0603 | 1 | 0603WAF1203T5E | LCSC | UniOhm | C25808 |
| 4 | 10k | R5 | 0603 | 1 | 0603WAF1002T5E | LCSC | UniOhm | C25804 |
| 5 | 6k8 | R4 | 0603 | 1 | 0603WAF6801T5E | LCSC | UniOhm | C23212 |
| 6 | 100k | R7,R3 | 0603 | 2 | 0603WAF1003T5E | LCSC | UniOhm | C25803 |
| 7 | IP2721 | U1 | TSSOP16 | 1 | IP2721 | LCSC | INJOINIC | C603176 |
| 8 | 1u | C1 | 0603 | 1 | CL10A105KB8NNNC | LCSC | SAMSUNG | C15849 |
| 9 | PWR | LED1 | LED0603 | 1 | 19-217/BHC-ZL1M2RY/3T | LCSC | EVERLIGHT | C72041 |
| 10 | USB-TYPE-C-6PIN | USB1 | USB-C-SMD-6P | 1 | TYPE-C-31-M-17 | LCSC | Korean Hroparts Elec | C283540 |
| 11 | 10uH | L1 | IND-SMD_L7.0-W6.6_FXL0630 | 1 | YT0630-100M | LCSC | Wenshan | C428419 |
| 12 | 10u | C2,C6 | 1206 | 2 | CL31A106KBHNNNE | LCSC | SAMSUNG | C13585 |
| 13 | 3n9 | C5 | 0603 | 1 | CL10B392KB8NNNC | LCSC | Samsung Electro-Mechanics | C170145 |
| 14 | 100n | C4 | 0603 | 1 | CC0603KRX7R9BB104 | LCSC | YAGEO | C14663 |
| 15 | 10n | C7 | 0603 | 1 | 0603B103K500NT | LCSC | FH | C57112 |
| 16 | 22u | C8,C3 | 1206 | 2 | C3216X5R1V226MTJ00E | LCSC | TDK | C342620 |
| 17 | 5k1 | R2,R1 | 0603 | 2 | 0603WAF5101T5E | LCSC | UniOhm | C23186 |
| 18 | 2k | R8 | 0603 | 1 | 0603WAF2001T5E | LCSC | UniOhm | C22975 |
| 19 | SS34 | D1 | DIODE-SMA(DO-214AC) | 1 | SS34 | LCSC | Yenji | C142458 |
| 20 | AO3400A | Q1 | SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR | 1 | AO3400A | LCSC | AOS | C20917 |
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