| Pin | Symbol | Type | Function (EN) |
|---|---|---|---|
| 1 | V OUT | I/O | Multiplexed I/O & Peripheral Pin V OUT (General) |
| 2 | NC | I/O | Multiplexed I/O & Peripheral Pin NC (General) |
| 3 | NC | I/O | Multiplexed I/O & Peripheral Pin NC (General) |
| 4 | GND | GND | Ground Reference Pin (GND) |
| 5 | NC | I/O | Multiplexed I/O & Peripheral Pin NC (General) |
| 6 | NC | I/O | Multiplexed I/O & Peripheral Pin NC (General) |
| 7 | NC | I/O | Multiplexed I/O & Peripheral Pin NC (General) |
| 8 | V IN | I/O | Multiplexed I/O & Peripheral Pin V IN (General) |
| 9 | EP | GND | Exposed Thermal & Ground Pad (EP) |
MCP1703 (DFN-8-EP(2x3))
| Designator / Replacement MPN | Value / Package | Function & PCB Layout Rule |
|---|---|---|
| N/A BOM | Per application circuit DFN-8-EP(2x3) | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Manufactured by MICROCHIP, the MCP1703AT-5002E/MC is housed in a DFN-8-EP(2x3) package with 9 pins and a 0.50 mm lead pitch, supporting a VCC supply range of 2.7V to16.0V. Key pins include: 1 (V OUT: Multiplexed I/O & Peripheral Pin V OUT (General)), 2 (NC: Multiplexed I/O & Peripheral Pin NC (General)), 3 (NC: Multiplexed I/O & Peripheral Pin NC (General)), 4 (GND: Ground Reference Pin (GND)), 5 (NC: Multiplexed I/O & Peripheral Pin NC (General)), 6 (NC: Multiplexed I/O & Peripheral Pin NC (General)).
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), MCP1703AT-5002E/MC (DFN-8-EP(2x3)) has a nominal body envelope of 2.00 × 3.00 mm, pitch e = 0.50 mm, and 9 copper pads plus a central exposed thermal pad (EPAD) of 1.40 × 1.30 mm with a 60% IPC-7525 windowed solder paste grid.
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for MCP1703AT-5002E/MC (MICROCHIP, DFN-8-EP(2x3)) directly on this page, including KiCad 8 Footprints (.kicad_mod), Schematic Symbols (.kicad_sym), Autodesk Fusion 360 / Eagle (.lbr), and 3D STEP AP214 / WebGL GLB models.
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | V OUT | Digital_IO | Signal terminal V OUT (I/O, 2.7V to16.0V domain). Multiplexed alternate functions: V OUT. Supported peripheral buses: General. |
| 2 | NC | NC | Signal terminal NC (I/O, 2.7V to16.0V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 3 | NC | NC | Signal terminal NC (I/O, 2.7V to16.0V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 4 | GND | GND | 0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks. |
| 5 | NC | NC | Signal terminal NC (I/O, 2.7V to16.0V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 6 | NC | NC | Signal terminal NC (I/O, 2.7V to16.0V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 7 | NC | NC | Signal terminal NC (I/O, 2.7V to16.0V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 8 | V IN | Digital_IO | Signal terminal V IN (I/O, 2.7V to16.0V domain). Multiplexed alternate functions: V IN. Supported peripheral buses: General. |
| 9 | EP | GND | Bottom exposed die attach pad (EP) providing primary thermal conduction path to the PCB and low-inductance 0V ground return. |