cnhardware
cnlohr
My dumping grounds for all my kicad projects and random hardware bringup.
Components (17)
| Reference | Value | Description |
|---|---|---|
| U2 | TPS54302 | 3A, 4.5 to 28V Input, EMI Friendly integrated switch synchronous step-down regulator, pulse-skipping, SOT-23-6 |
| U3 | CH572Q | |
| U4 | HX3608_BOOST | |
| BT1 | Battery | Multiple-cell battery |
| C1,C3,C13 | 100n | |
| C2,C5-C12 | 4.7u | |
| C4,C15 | 1u | |
| C14 | 10n | |
| D1,D2 | 1N4148 | 100V 0.15A standard switching diode, DO-35 |
| L1,L2 | 10uH | Inductor, small symbol |
| R1,R6,R7 | 33k | Resistor |
| R2 | 51k | Resistor |
| R3,R8 | 1M | Resistor |
| R5 | 100k | Resistor |
| SW1-SW3 | TS-1187A-B-A-B | |
| SW4 | SW_SPDT | Switch, single pole double throw |
| Y1 | 32MHz | Four pin crystal, GND on pins 2 and 4, small symbol |