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STD PowerSwitcher
License: Public Domain
Mode: Editors' pick
- 0
Update time：
2024-02-12 20:43:08
Creation time：
2020-01-25 16:51:24
Description
The idea of this circuit is to make a UPS type of switching circuit so that if my external project loses USB-power (or any other external 5V power, a battery pack will kick in until external power is restored. The design is based on the LTC4415 chip and its datasheet.
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| ID | Name | Designator | Footprint | Quantity | BOM_Supplier | BOM_Supplier Part | BOM_Manufacturer | BOM_Manufacturer Part |
|---|---|---|---|---|---|---|---|---|
| 1 | 124 | R2,R3 | R0805 | 2 | LCSC | C234730 | Viking Tech | AR05FTC1240 |
| 2 | 100K | R1 | R0805 | 1 | LCSC | C136904 | YAGEO | RT0805FRE07100KL |
| 3 | LTC4415EMSE#PBF | U1 | MSOP-16_L4.0-W3.0-P0.50-LS4.9-BL-EP | 1 | LCSC | C117261 | LINEAR | LTC4415EMSE#PBF |
| 4 | U-F-M5DD-Y-L | USB5V | MICRO-USB-SMD_MICRO-USB-18 | 1 | LCSC | C91146 | HRO | U-F-M5DD-Y-L |
| 5 | 21.5K | R4 | R0805 | 1 | LCSC | C149985 | Ever Ohms Tech | TR0805D21K5P0525 |
| 6 | 4.7uF | C1 | C1210 | 1 | LCSC | C47783 | SAMSUNG | CL32B475KBJNNNE |
| 7 | A2501WR-S-2P | EXT5V,BATT,CN3 | CONN-SMD_A2501WR-S-2P | 3 | LCSC | C273220 | Changjiang Connectors | A2501WR-S-2P |
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