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MCP6291T-E

Public Made by Adom

by adom

Microchip Operational Amplifier, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs mcp6291t-e: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
mcp6291t-e-etched.fit.json mcp6291t-e: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
mcp6291t-e-etched.glb mcp6291t-e: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
mcp6291t-e-etched.step mcp6291t-e: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 3d ago
mcp6291t-e.glb Publish 0.1.0 · Ray 1mo ago
mcp6291t-e.kicad_mod Publish 0.1.0 · Ray 1mo ago
mcp6291t-e.kicad_sym symbol: the part is a 5-lead SOT-23 - the shipped footprint has 5 pads and the datasheet confirms it for this ordering suffix - but the symbol carried the 8-pin SOIC pinout. Pinout taken from this part's datasheet for its own ordering suffix. The library failed validate because the symbol declared pins the footprint has no pad for (connect-pad-unresolved), which also blocked its orderable attributes. Rebuilds the .lbr, re-derives pin 1 and pads.json. · Ray 1mo ago
mcp6291t-e.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect and oval pad as a SQUARE EAGLE smd; this carries the real pad shape across (0 -> 5 rounded pads) and stops dropping geometry drawn on KiCad User.N layers. Attributes, connects, pads and the pin-1 marker are gated against decreasing and are unchanged. · Ray 1mo ago
mcp6291t-e.step Publish 0.1.0 · Ray 1mo ago
package.json Publish 0.2.0 · Ray 1mo ago
pads.json symbol: the part is a 5-lead SOT-23 - the shipped footprint has 5 pads and the datasheet confirms it for this ordering suffix - but the symbol carried the 8-pin SOIC pinout. Pinout taken from this part's datasheet for its own ordering suffix. The library failed validate because the symbol declared pins the footprint has no pad for (connect-pad-unresolved), which also blocked its orderable attributes. Rebuilds the .lbr, re-derives pin 1 and pads.json. · Ray 1mo ago
page.json Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray 7d ago
README.md mcp6291t-e: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 17d ago

MCP6291T-E

Microchip · Operational Amplifier · SOT-23-5

MCP6291T-E from Microchip, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 NC unconnected No internal connection. Pad may be left floating; not electrically bonded to the die.
2 VIN- input Inverting analog input of the op amp. High-impedance CMOS input with typical bias current of ±1 pA. Common-mode input range extends from VSS - 0.3V to VDD + 0.3V.
3 VIN+ input Non-inverting analog input of the op amp. High-impedance CMOS input with typical bias current of ±1 pA. Rail-to-rail input capability across the supply range.
4 VSS power_in Negative power supply pin. Tied to ground in single-supply configuration. Must be 2.4V to 6.0V below VDD.
5 NC unconnected No internal connection. Pad may be left floating; not electrically bonded to the die.
6 VOUT output Low-impedance analog output. Rail-to-rail output swing (typically within 15 mV of the supply rails with a 10 kΩ load). Short-circuit current ±25 mA.
7 VDD power_in Positive power supply pin, 2.4V to 6.0V above VSS. Quiescent current 1.0 mA typical per amplifier. Requires a local 0.01-0.1 µF bypass capacitor within 2 mm plus a bulk 1 µF within 100 mm.
8 NC unconnected No internal connection. Pad may be left floating; not electrically bonded to the die.

Key specifications

Parameter Value
Manufacturer Microchip
Package SOT-23-5
Category Op-amp/Cmp
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • MCP6291T-ESN
  • MCP6291T-EP
  • MCP6291T-EMS
  • MCP6291T-EOT

CAD (KiCad official)

  • Symbol: MCP6291T-E
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: mcp6291t-e-etched.step / mcp6291t-e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mcp6291t-e.step / mcp6291t-e.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
mcp6291t-e.step 85 KB You want the bare part, or you mark your own boards.
mcp6291t-e-etched.step 1.7 MB You want the part with MCP6291T-E already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 424 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Microchip datasheet (36 pp, sha256 55213facea60c43a, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF