Mechanical Dimensions & Land Pattern (TO-263-5)
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 TO-263-5 | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — LM2596S-5.0/NOPB (TO-263-5)
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of LM2596S-5.0/NOPB (TO-263-5)?
Manufactured by TI, the LM2596S-5.0/NOPB is housed in a TO-263-5 package with 6 pins and a 1.70 mm lead pitch. Key pins include: 1 (V IN: Multiplexed I/O & Peripheral Pin V IN (General)), 2 (Output: Multiplexed I/O & Peripheral Pin Output (General)), 3 (Ground: Multiplexed I/O & Peripheral Pin Ground (General)), 4 (Feedback: Multiplexed I/O & Peripheral Pin Feedback (General)), 5 (ON/OFF: Multiplexed I/O & Peripheral Pin ON/OFF (General)), 6 (GND: Ground Reference Pin (GND)).
What are the IPC-7351B PCB Footprint dimensions for LM2596S-5.0/NOPB?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), LM2596S-5.0/NOPB (TO-263-5) has a nominal body envelope of 9.00 × 10.10 mm, pitch e = 1.70 mm, and 6 copper pads plus a central exposed thermal pad (EPAD) of 8.71 × 10.59 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 LM2596S-5.0/NOPB?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for LM2596S-5.0/NOPB (TI, TO-263-5) 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 (6 pins) & LM2596 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | V IN | Digital_IO | Signal terminal V IN (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: V IN. Supported peripheral buses: General. |
| 2 | Output | Digital_IO | Signal terminal Output (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: Output. Supported peripheral buses: General. |
| 3 | Ground | Digital_IO | Signal terminal Ground (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: Ground. Supported peripheral buses: General. |
| 4 | Feedback | Digital_IO | Signal terminal Feedback (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: Feedback. Supported peripheral buses: General. |
| 5 | ON/OFF | Digital_IO | Signal terminal ON/OFF (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: ON/OFF. Supported peripheral buses: General. |
| 6 | GND | GND | 0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks. |













