component

LM2936QMPX-3.3

Public Made by Adom

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Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)lm2936qmpx-3.3factory-2.0.0extractor-text

Verified LM2936QMPX-3.3

by Ray · last 5 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

5 Nov 2026RayPublished by the parts factory: tier mfr, 4 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: LM2936QMPX-3.3 · SOT-223-4 · 4 pins
  • ✓copper: 4 copper pads, none touching another net
  • ✓datasheet: all 4 pin names found in the 38-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: SOT-223
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-ews8xyf1/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: 4 pins = 4 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 4 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ lm2936qmpx-3-3.kicad_sym✓ lm2936qmpx-3-3.kicad_mod✓ lm2936qmpx-3-3.step
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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 7h ago
viewers lm2936qmpx-3-3: viewers · Ray 7h ago
lm2936qmpx-3-3-etched.glb Publish 0.1.0 · Ray 7h ago
lm2936qmpx-3-3-etched.step lm2936qmpx-3-3: factory component page (tier=mfr) · Ray 7h ago
lm2936qmpx-3-3-hero.glb lm2936qmpx-3-3: hero GLB from the etched model (keeps the MPN mark) · Ray 7h ago
lm2936qmpx-3-3-hero.overlay.json Publish 0.1.0 · Ray 7h ago
lm2936qmpx-3-3.glb Publish 0.1.0 · Ray 7h ago
lm2936qmpx-3-3.kicad_mod Publish 0.1.0 · Ray 7h ago
lm2936qmpx-3-3.kicad_sym Publish 0.1.0 · Ray 7h ago
lm2936qmpx-3-3.lbr Publish 0.1.0 · Ray 7h ago
lm2936qmpx-3-3.step Publish 0.1.0 · Ray 7h ago
package.json Publish 0.1.0 · Ray 7h ago
page.json Set visibility: public · Ray 7h ago
README.md Publish 0.1.0 · Ray 7h ago
verification.json Verified: Published by the parts factory: tier mfr, 4 pins · Ray 7h ago

LM2936QMPX-3.3

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-4

LM2936QMPX-3.3 from Texas Instruments, in a SOT-223-4. 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 IN power_in Unregulated input voltage; the LM2936Q operating input range is 5.5 V to 40 V.
2 GND power_in Ground pin for the regulator.
3 OUT power_out Regulated output voltage; requires a minimum output capacitance with specific ESR on this pin to maintain stability.
4 GND power_in Ground pin, also connected to the SOT-223 tab (GND (TAB)).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-223-4
Category Power Management (PMIC)
Pins 4

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Output voltage 3.234 3.3 3.366 V 6
Output voltage 3.201 3.3 3.399 V 4 V ≤ VIN ≤ 26 V, 100 µA ≤ IOUT ≤ 50 mA, -40°C ≤ TJ ≤ 125°C 6
Quiescent current 15 20 µA IOUT = 100 μA, 8 V ≤ VIN ≤ 24 V 6
Quiescent current 0.2 0.5 mA IOUT = 10 mA, 8 V ≤ VIN ≤ 24 V 6
Quiescent current 1.5 2.5 mA IOUT = 50 mA, 8 V ≤ VIN ≤ 24 V 6
Line regulation 5 10 mV 9 V ≤ VIN ≤ 16 V 6
Line regulation 10 30 mV 6 V ≤ VIN ≤ 40 V, IOUT = 1 mA 6
Load regulation 10 30 mV 100 μA ≤ IOUT ≤ 5 mA 6
Dropout voltage 0.05 0.1 V IOUT = 100 μA 6
Dropout voltage 0.2 0.4 V IOUT = 50 mA 6
Short-circuit current 65 120 250 mA VOUT = 0 V 6
Output bypass capacitance (COUT) ESR 0.3 8 Ω COUT = 22 µF, 0.1 mA ≤ IOUT ≤ 50 mA 6
Output voltage with reverse polarity input 0 -0.3 V VIN = −15 V, RL = 500 Ω 6
Reverse polarity transient input voltage -50 -80 V RL = 500 Ω, T = 1 ms 6
Ripple rejection -40 -60 dB Vripple = 1 Vrms, ƒripple = 120 Hz 6
Maximum line transient 60 V RL = 500 Ω, VOUT ≤ 3.63 V, T = 40 ms 6
Input voltage, VIN (survival) VIN -50 60 V 4
Junction temperature, TJMAX TJMAX 150 °C 4
Storage temperature, Tstg Tstg -65 150 °C 4
Temperature, TJ TJ -40 125 °C 4
Input voltage, VIN (LM2936Q) VIN 5.5 40 V 4
Junction-to-ambient thermal resistance RθJA RθJA 62.8 °C/W SOT-223 (DCY), High-K PCB per JESD51-7 4
Junction-to-case (top) thermal resistance RθJC(top) RθJC(top) 44.2 °C/W SOT-223 (DCY) 4
Junction-to-board thermal resistance RθJB RθJB 11.7 °C/W SOT-223 (DCY) 4
Junction-to-top characterization parameter ψJT ψJT 3.6 °C/W SOT-223 (DCY) 4
Junction-to-board characterization parameter ψJB ψJB 11.6 °C/W SOT-223 (DCY) 4
Output impedance 450 mΩ IOUT = 30 mAdc and 10 mArms, ƒ = 1000 Hz 6
Output noise voltage 500 µV 10 Hz-100 kHz 6
Long-term stability 20 mV/1000 Hr 6

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper On the 8-pin SOIC (D) package, the four ground pins are thermally connected to the backside of the die. Adding approximately 0.04 square inches of 2 oz. copper pad area to these four pins improves the 15

CAD (KiCad official)

  • Symbol: LM2936QMPX-3.3
  • Footprint: Package_TO_SOT_SMD:SOT-223
  • 3D model: SOT-223-4 (KiCad packages3D, STEP)
  • 3D model files: lm2936qmpx-3-3-etched.step / lm2936qmpx-3-3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2936qmpx-3-3.step / lm2936qmpx-3-3.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (38 pp, sha256 5e6faea78729f75a, retrieved 2026-11-05, tier: manufacturer)
  • 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