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LP2950CZ-3.3

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Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)lp2950cz-3.3factory-2.0.0extractor-text

Verified LP2950CZ-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, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: LP2950CZ-3.3 · TO-92-3 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 62-page datasheet
  • •distributor (warn): no ['digikey'] number
  • ✓family: TO-92_Inline
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-2_5c8vrx/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✓ lp2950cz-3-3.kicad_sym✓ lp2950cz-3-3.kicad_mod✓ lp2950cz-3-3.step
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Contents

README

markdown

LP2950CZ-3.3

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-92-3

LP2950CZ-3.3 from Texas Instruments, in a TO-92-3. 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 OUT power_out Regulated output voltage pin; the 3.3-V version of the LP2950-N is pin-strapped for a 3.3 V output as stated in the voltage options.
2 GND power_in Ground pin of the regulator, connected to the common ground of the circuit.
3 IN power_in Input supply voltage pin, with a stated input supply voltage range of 2.3 V to 30 V and an absolute maximum of 30 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TO-92-3
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
Output voltage VOUT 3.267 3.3 3.333 V TJ = 25 C 7
Output voltage VOUT 3.251 3.3 3.35 V -25 C <= TJ <= 85 C 7
Output voltage VOUT 3.234 3.3 3.366 V Full operating temperature range 7
Output voltage VOUT 3.221 3.3 3.379 V 100 uA <= IL <= 100 mA, TJ <= TJMAX 7
Output voltage temperature coefficient 150 ppm/C -40 C <= TJ <= 125 C 7
Line regulation 0.04 0.2 % (VONOM + 1 V) <= Vin <= 30 V 7
Line regulation 0.04 0.4 % (VONOM + 1 V) <= Vin <= 30 V, -40 C <= TJ <= 125 C 7
Load regulation 0.1 0.2 % 100 uA <= IL <= 100 mA 7
Load regulation 0.1 0.3 % 100 uA <= IL <= 100 mA, -40 C <= TJ <= 125 C 7
Dropout voltage 50 80 mV IL = 100 uA 8
Dropout voltage 150 mV IL = 100 uA, -40 C <= TJ <= 125 C 8
Dropout voltage 380 450 mV IL = 100 mA 8
Dropout voltage 600 mV IL = 100 mA, -40 C <= TJ <= 125 C 8
Ground current 75 120 uA IL = 100 uA 8
Ground current 140 uA IL = 100 uA, -40 C <= TJ <= 125 C 8
Ground current 8 12 mA IL = 100 mA 8
Ground current 14 mA IL = 100 mA, -40 C <= TJ <= 125 C 8
Dropout ground current 110 170 uA VIN = (VONOM - 0.5 V), IL = 100 uA 8
Dropout ground current 200 uA VIN = (VONOM - 0.5 V), IL = 100 uA, -40 C <= TJ <= 125 C 8
Current limit 160 200 mA VOUT = 0 V 8
Current limit 220 mA VOUT = 0 V, -40 C <= TJ <= 125 C 8
Thermal regulation 0.05 0.2 %/W See note 10: 50 mA load pulse at VIN = 30 V, T = 10 ms 8
Maximum input supply voltage 30 V 5
Junction temperature (LP2950C-XX) TJ -40 125 C 5
Input supply voltage -0.3 30 V 5
Junction temperature TJ 150 C 5
Storage temperature Tstg -65 150 C 5
Junction-to-ambient thermal resistance RthetaJA RthetaJA 157.4 C/W High-K JEDEC board, TO-92 (LP) package 6
Junction-to-case (top) thermal resistance RthetaJC(top) RthetaJC(top) 81.2 C/W TO-92 (LP) package 6
Junction-to-board thermal resistance RthetaJB RthetaJB 153.6 C/W TO-92 (LP) package 6
Junction-to-top characterization parameter psiJT psiJT 25.2 C/W TO-92 (LP) package 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 capacitor, and to the LDO ground pin as close to each other as possible, connected by a wide, component-side, copper surface. The use of vias and long traces to create LDO circuit connections is stron 32

CAD (KiCad official)

  • Symbol: LP2950CZ-3.3
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92-3 (KiCad packages3D, STEP)
  • 3D model files: lp2950cz-3-3-etched.step / lp2950cz-3-3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lp2950cz-3-3.step / lp2950cz-3-3.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (62 pp, sha256 b9e1f8851a20b9c9, 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