component

LM4040DIM3X-3.0

Public Made by Adom

by adom

Texas Instruments Voltage Reference, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)lm4040dim3x-3.0factory-2.0.0extractor-text

Verified LM4040DIM3X-3.0

by Ray · last 6 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

6 Nov 2026RayPublished by the parts factory: tier mfr, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: LM4040DIM3X-3.0 · SOT-23-3 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 84-page datasheet
  • •distributor (warn): no ['mouser'] number
  • ✓family: SOT-23-3
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-_nx8tz_o/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ lm4040dim3x-3-0.kicad_sym✓ lm4040dim3x-3-0.kicad_mod✓ lm4040dim3x-3-0.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 17h ago
viewers lm4040dim3x-3-0: viewers · Ray 17h ago
lm4040dim3x-3-0-etched.glb Publish 0.1.0 · Ray 17h ago
lm4040dim3x-3-0-etched.step lm4040dim3x-3-0: factory component page (tier=mfr) · Ray 17h ago
lm4040dim3x-3-0-hero.glb lm4040dim3x-3-0: hero GLB from the etched model (keeps the MPN mark) · Ray 17h ago
lm4040dim3x-3-0-hero.overlay.json Publish 0.1.0 · Ray 17h ago
lm4040dim3x-3-0.glb Publish 0.1.0 · Ray 17h ago
lm4040dim3x-3-0.kicad_mod Publish 0.1.0 · Ray 17h ago
lm4040dim3x-3-0.kicad_sym Publish 0.1.0 · Ray 17h ago
lm4040dim3x-3-0.lbr Publish 0.1.0 · Ray 17h ago
lm4040dim3x-3-0.step Publish 0.1.0 · Ray 17h ago
package.json Publish 0.1.0 · Ray 17h ago
page.json Set visibility: public · Ray 17h ago
README.md Publish 0.1.0 · Ray 17h ago
verification.json Verified: Published by the parts factory: tier mfr, 3 pins · Ray 17h ago

LM4040DIM3X-3.0

Texas Instruments · Voltage Reference · SOT-23-3

LM4040DIM3X-3.0 from Texas Instruments, in a SOT-23-3. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 Cathode bidirectional Parallel current/output voltage pin; an external series resistor from the input supply to the cathode sets the reverse current IR, which must stay between IRMIN and 15 mA.
2 Anode output Anode pin, normally grounded, which the datasheet describes as the reference's return path for the shunted current.
3 * unconnected Must be left floating or connected to pin 2 (anode); TI recommends connecting it to the anode where there is high EMI or significant high-frequency switching noise.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-3
Category Power Management (PMIC)
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Reverse breakdown voltage tolerance, 25°C -30 30 mV IR = 100μA, TA = TJ = 25°C 19
Reverse breakdown voltage tolerance, TMIN to TMAX -59 59 mV IR = 100μA, TA = TJ = TMIN to TMAX 19
Minimum operating current, 25°C IRMIN 45 65 μA TA = TJ = 25°C 19
Minimum operating current, TMIN to TMAX IRMIN 70 μA TA = TJ = TMIN to TMAX 19
Average reverse breakdown voltage temperature coefficient ΔVR/ΔT -20 20 ppm/°C IR = 10mA 19
Average reverse breakdown voltage temperature coefficient, 25°C ΔVR/ΔT -15 15 ppm/°C IR = 1mA, TA = TJ = 25°C 19
Average reverse breakdown voltage temperature coefficient, TMIN to TMAX ΔVR/ΔT -150 150 ppm/°C IR = 1mA, TA = TJ = TMIN to TMAX 19
Average reverse breakdown voltage temperature coefficient ΔVR/ΔT -15 15 ppm/°C IR = 100μA 19
Reverse breakdown voltage change with operating current, 25°C ΔVR/ΔIR 0.4 1.1 mV IRMIN ≤ IR ≤ 1mA, TA = TJ = 25°C 19
Reverse breakdown voltage change with operating current, TMIN to TMAX ΔVR/ΔIR 1.3 mV IRMIN ≤ IR ≤ 1mA, TA = TJ = TMIN to TMAX 19
Reverse breakdown voltage change with operating current, 25°C ΔVR/ΔIR 2.7 8 mV 1mA ≤ IR ≤ 15mA, TA = TJ = 25°C 19
Reverse breakdown voltage change with operating current, TMIN to TMAX ΔVR/ΔIR 11 mV 1mA ≤ IR ≤ 15mA, TA = TJ = TMIN to TMAX 19
Reverse dynamic impedance ZR 0.4 1.2 Ω IR = 1mA, f = 120Hz, IAC = 0.1 IR 19
Reverse current, LM4040-N-3.0 (recommended) IR 62 15 μA to mA 6
Operating temperature, industrial TA -40 85 °C Industrial temperature range 6
Operating temperature TA -40 125 °C Operating temperature range 6
Reverse current IR 20 mA 5
Forward current IF 10 mA 5
Power dissipation, SOT-23 (M3) PD 306 mW TA = 25°C 5
Storage temperature Tstg -65 150 °C 5
Junction-to-ambient thermal resistance, SOT-23 RθJA 291.9 °C/W DBZ (SOT-23) package 6
Junction-to-case (top) thermal resistance, SOT-23 RθJC(top) 114.3 °C/W DBZ (SOT-23) package 6
Junction-to-board thermal resistance, SOT-23 RθJB 62.3 °C/W DBZ (SOT-23) package 6
Junction-to-top characterization parameter, SOT-23 ψJT 7.4 °C/W DBZ (SOT-23) package 6
Junction-to-board characterization parameter, SOT-23 ψJB 61 °C/W DBZ (SOT-23) package 6
Reverse breakdown voltage VR 3 V IR = 100μA 19
Wideband noise eN 35 μVrms IR = 100μA, 10Hz ≤ f ≤ 10kHz 19
Reverse breakdown voltage long-term stability ΔVR 120 ppm t = 1000h, T = 25°C ±0.1°C, IR = 100μA 19
Thermal hysteresis VHYST 0.08 % ΔT = -40°C to 125°C 20

CAD (KiCad official)

  • Symbol: LM4040DIM3X-3.0
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: lm4040dim3x-3-0-etched.step / lm4040dim3x-3-0-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm4040dim3x-3-0.step / lm4040dim3x-3-0.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (84 pp, sha256 fc3ca7d9c21dc51e, retrieved 2026-11-06, tier: manufacturer)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF