Mechanical Dimensions & Land Pattern (QFN-52-EP(8x8.5))
Extracted from Datasheet & IPC-7351B NormalizedRecommended Companion BOM & Drop-In Equivalents
Passive external components per reference schematic and 1:1 pin-compatible alternatives| Designator / Replacement MPN | Value / Package | Function & PCB Layout Rule |
|---|---|---|
| N/A BOM | Per application circuit QFN-52-EP(8x8.5) | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — MIC45116-2YMP-TR (QFN-52-EP(8x8.5))
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of MIC45116-2YMP-TR (QFN-52-EP(8x8.5))?
Manufactured by MICROCHIP, the MIC45116-2YMP-TR is housed in a QFN-52-EP(8x8.5) package with 51 pins and a 0.50 mm lead pitch, supporting a VCC supply range of 4.75V to 20V. Key pins include: 1 (PVIN: Power Supply Input (PVIN — 4.75V to 20V)), 2 (PVIN: Power Supply Input (PVIN — 4.75V to 20V)), 4 (PV DD: Multiplexed I/O & Peripheral Pin PV DD (General)), 5 (BST: Multiplexed I/O & Peripheral Pin BST (General)), 6 (BST: Multiplexed I/O & Peripheral Pin BST (General)), 8 (SW: Multiplexed I/O & Peripheral Pin SW (General)).
What are the IPC-7351B PCB Footprint dimensions for MIC45116-2YMP-TR?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), MIC45116-2YMP-TR (QFN-52-EP(8x8.5)) has a nominal body envelope of 8.00 × 8.50 mm, pitch e = 0.50 mm, and 115 copper pads plus a central exposed thermal pad (EPAD) of 7.80 × 7.80 mm with a 60% IPC-7525 windowed solder paste grid.
Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for MIC45116-2YMP-TR?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for MIC45116-2YMP-TR (MICROCHIP, QFN-52-EP(8x8.5)) 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.
Static Reference Appendix: Pinout Table (51 pins) & MIC45116 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | PVIN | Power_In | Primary positive power supply input (PVIN) operating in the 4.75V to 20V domain (Max rating: 20.0V). |
| 2 | PVIN | Power_In | Primary positive power supply input (PVIN) operating in the 4.75V to 20V domain (Max rating: 20.0V). |
| 4 | PV DD | Digital_IO | Signal terminal PV DD (I/O, 4.75V to 20V domain). Multiplexed alternate functions: PV DD. Supported peripheral buses: General. |
| 5 | BST | Digital_IO | Signal terminal BST (I/O, 4.75V to 20V domain). Multiplexed alternate functions: BST. Supported peripheral buses: General. |
| 6 | BST | Digital_IO | Signal terminal BST (I/O, 4.75V to 20V domain). Multiplexed alternate functions: BST. Supported peripheral buses: General. |
| 8 | SW | Digital_IO | Signal terminal SW (I/O, 4.75V to 20V domain). Multiplexed alternate functions: SW. Supported peripheral buses: General. |
| 9 | SW | Digital_IO | Signal terminal SW (I/O, 4.75V to 20V domain). Multiplexed alternate functions: SW. Supported peripheral buses: General. |
| 10 | SW | Digital_IO | Signal terminal SW (I/O, 4.75V to 20V domain). Multiplexed alternate functions: SW. Supported peripheral buses: General. |
| 12 | PV IN | Digital_IO | Signal terminal PV IN (I/O, 4.75V to 20V domain). Multiplexed alternate functions: PV IN. Supported peripheral buses: General. |
| 13 | VOUT | Power_Out | Regulated power output rail (VOUT) operating in the 4.75V to 20V domain (Max rating: 20.0V). |
| 14 | VOUT | Power_Out | Regulated power output rail (VOUT) operating in the 4.75V to 20V domain (Max rating: 20.0V). |
| 15 | VOUT | Power_Out | Regulated power output rail (VOUT) operating in the 4.75V to 20V domain (Max rating: 20.0V). |
| 16 | VOUT | Power_Out | Regulated power output rail (VOUT) operating in the 4.75V to 20V domain (Max rating: 20.0V). |
| 17 | VOUT | Power_Out | Regulated power output rail (VOUT) operating in the 4.75V to 20V domain (Max rating: 20.0V). |
| 18 | VOUT | Power_Out | Regulated power output rail (VOUT) operating in the 4.75V to 20V domain (Max rating: 20.0V). |
| 19 | VOUT | Power_Out | Regulated power output rail (VOUT) operating in the 4.75V to 20V domain (Max rating: 20.0V). |
| 20 | VOUT | Power_Out | Regulated power output rail (VOUT) operating in the 4.75V to 20V domain (Max rating: 20.0V). |
| 21 | VOUT | Power_Out | Regulated power output rail (VOUT) operating in the 4.75V to 20V domain (Max rating: 20.0V). |
| 23 | NC | NC | Signal terminal NC (I/O, 4.75V to 20V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 24 | NC | NC | Signal terminal NC (I/O, 4.75V to 20V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 25 | NC | NC | Signal terminal NC (I/O, 4.75V to 20V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 26 | PGND | GND | 0V electrical ground return terminal (PGND) for internal core logic, I/O drivers, and analog sub-blocks. |
| 27 | NC | NC | Signal terminal NC (I/O, 4.75V to 20V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 28 | NC | NC | Signal terminal NC (I/O, 4.75V to 20V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 29 | NC | NC | Signal terminal NC (I/O, 4.75V to 20V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 30 | NC | NC | Signal terminal NC (I/O, 4.75V to 20V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 31 | PGND | GND | 0V electrical ground return terminal (PGND) for internal core logic, I/O drivers, and analog sub-blocks. |
| 32 | NC | NC | Signal terminal NC (I/O, 4.75V to 20V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 33 | NC | NC | Signal terminal NC (I/O, 4.75V to 20V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 34 | NC | NC | Signal terminal NC (I/O, 4.75V to 20V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 35 | PGND | GND | 0V electrical ground return terminal (PGND) for internal core logic, I/O drivers, and analog sub-blocks. |
| 36 | FB | Digital_IO | Signal terminal FB (I/O, 4.75V to 20V domain). Multiplexed alternate functions: FB. Supported peripheral buses: General. |
| 37 | PG | Open_Drain | Signal terminal PG (I/O, 4.75V to 20V domain). Multiplexed alternate functions: PG. Supported peripheral buses: General. |
| 38 | EN | Digital_IO | Chip enable and power-on reset control input (EN): High enables the SoC; Low powers down the chip into reset. |
| 39 | V IN | Digital_IO | Signal terminal V IN (I/O, 4.75V to 20V domain). Multiplexed alternate functions: V IN. Supported peripheral buses: General. |
| 40 | NC | NC | Signal terminal NC (I/O, 4.75V to 20V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 41 | NC | NC | Signal terminal NC (I/O, 4.75V to 20V domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 42 | P GND | GND | 0V electrical ground return terminal (P GND) for internal core logic, I/O drivers, and analog sub-blocks. |
| 43 | 5V DD | Power_Out | Regulated power output rail (5V DD) operating in the 4.75V to 20V domain (Max rating: 20.0V). |
| 44 | PV DD | Digital_IO | Signal terminal PV DD (I/O, 4.75V to 20V domain). Multiplexed alternate functions: PV DD. Supported peripheral buses: General. |
| 45 | P GND | GND | 0V electrical ground return terminal (P GND) for internal core logic, I/O drivers, and analog sub-blocks. |
| 47 | I LIM | Digital_IO | Signal terminal I LIM (I/O, 4.75V to 20V domain). Multiplexed alternate functions: I LIM. Supported peripheral buses: General. |
| 48 | SW | Digital_IO | Signal terminal SW (I/O, 4.75V to 20V domain). Multiplexed alternate functions: SW. Supported peripheral buses: General. |
| 49 | SW | Digital_IO | Signal terminal SW (I/O, 4.75V to 20V domain). Multiplexed alternate functions: SW. Supported peripheral buses: General. |
| 50 | SW | Digital_IO | Signal terminal SW (I/O, 4.75V to 20V domain). Multiplexed alternate functions: SW. Supported peripheral buses: General. |
| 51 | SW | Digital_IO | Signal terminal SW (I/O, 4.75V to 20V domain). Multiplexed alternate functions: SW. Supported peripheral buses: General. |
| 52 | PV IN | Digital_IO | Signal terminal PV IN (I/O, 4.75V to 20V domain). Multiplexed alternate functions: PV IN. Supported peripheral buses: General. |
| 53 | SWePAD | GND | 0V electrical ground return terminal (SWePAD) for internal core logic, I/O drivers, and analog sub-blocks. |
| 54 | PGNDePAD | GND | 0V electrical ground return terminal (PGNDePAD) for internal core logic, I/O drivers, and analog sub-blocks. |
| 55 | VOUTePAD | GND | 0V electrical ground return terminal (VOUTePAD) for internal core logic, I/O drivers, and analog sub-blocks. |
| 56 | PGNDePAD | GND | 0V electrical ground return terminal (PGNDePAD) for internal core logic, I/O drivers, and analog sub-blocks. |












