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Another sparkfun design here for a simple board that takes a 4-9V input voltage and outputs a selectable 1.8V or 3.3V regulated voltage. Based on the LM317 again
Breadboard Power Supply Stick 3.31.8
Bill of materials exported from Eagle
| Part | Value | Device | Package | Description | PROD_ID | VALUE |
| C1 | 100uF | CAP_POL7343 | EIA7343 | Capacitor Polarized | ||
| C2 | 10uF | CAP_POL1206 | EIA3216 | Capacitor Polarized | ||
| C3 | 0.1uF | CAP0603-CAP | 0603-CAP | Capacitor | ||
| D1 | 1N4001 | DIODESMA-TYLERALT1 | SMA-DIODE-TYLERALT1 | Diode | ||
| F1 | PTCSMD-W | PTCSMD-W | PTC-1206-WIDE | Resettable Fuse PTC | ||
| FRAME1 | FRAME-LETTER | FRAME-LETTER | CREATIVE_COMMONS | Schematic Frame | ||
| J1 | POWER_JACKOVERPASTE_REDBOARD_0603 | POWER_JACKOVERPASTE_REDBOARD_0603 | POWER_JACK_SMD_OVERPASTE_REDBOARD_0603 | Power Jack | ||
| JP1 | M01PTH | M01PTH | 1X01 | Header 1 | ||
| JP2 | M01PTH | M01PTH | 1X01 | Header 1 | ||
| JP3 | M01PTH | M01PTH | 1X01 | Header 1 | ||
| JP4 | M01PTH | M01PTH | 1X01 | Header 1 | ||
| JP5 | M02PTH | 1X02 | Header 2 | |||
| JP6 | M01PTH | M01PTH | 1X01 | Header 1 | ||
| JP7 | M01PTH | M01PTH | 1X01 | Header 1 | ||
| JP8 | M01PTH | M01PTH | 1X01 | Header 1 | ||
| JP9 | M01PTH | M01PTH | 1X01 | Header 1 | ||
| LED2 | Power | LED1206 | LED-1206 | |||
| LOGO1 | OSHW-LOGOS | OSHW-LOGOS | OSHW-LOGO-S | |||
| R1 | 240 | 240OHM1/10W1%(0603) | 0603-RES | RES-07849 | RES-07849 | 240 |
| R2 | 105 | 105OHM-1/10W-1%(0603) | 0603-RES | RES-10751 | RES-10751 | 105 |
| R3 | 287 | 287OHM-1/10W-1%(0603) | 0603-RES | RES-10752 | RES-10752 | 287 |
| R4 | 240 | 240OHM1/10W1%(0603) | 0603-RES | RES-07849 | RES-07849 | 240 |
| S1 | On/Off | AYZ0202 | AYZ0202 | SPDT Slide Switch | ||
| S2 | Voltage | SWITCH-SPSTSMD | AYZ0202 | SPST Switch | ||
| U$1 | LOGO-SFESK | LOGO-SFESK | SFE-LOGO-FLAME | Spark Fun Electronics PCB Logo | ||
| U$2 | LOGO-SFENEW | LOGO-SFENEW | SFE-NEW-WEBLOGO | Spark Fun Electronics PCB Logo | ||
| U$3 | FIDUCIAL1X2 | FIDUCIAL1X2 | FIDUCIAL-1X2 | Fiducial Alignment Points | ||
| U$4 | FIDUCIAL1X2 | FIDUCIAL1X2 | FIDUCIAL-1X2 | Fiducial Alignment Points | ||
| U1 | V_REG_317SMD | V_REG_317SMD | SOT223 | Voltage Regulator |
Links
You can get all files from
https://github.com/sparkfun/Breadboard_Power_Supply_Stick_3.3V-1.8V