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NCP508SQ18T1G

Public Made by Adom

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onsemi Linear Voltage Regulators (LDO), SOT-353. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management icsncp508sq18t1gfactory-2.0.0extractor-text

Verified NCP508SQ18T1G

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier mfr, 5 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: NCP508SQ18T1G · SOT-353 · 5 pins
  • ✓copper: 5 copper pads, none touching another net
  • ✓datasheet: all 5 pin names found in the 16-page datasheet
  • ✓distributor: lcsc C892522, digikey NCP508SQ18T1GOSTR-ND, mouser 863-NCP508SQ18T1G
  • ✓family: SOT-353_SC-70-5
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-7n6k77lc/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.14)
  • ✓pads: 5 pins = 5 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 5 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ ncp508sq18t1g.kicad_sym✓ ncp508sq18t1g.kicad_mod✓ ncp508sq18t1g.step
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Ray Publish 0.1.0 8f44fce 9d ago

NCP508SQ18T1G

onsemi · Linear Voltage Regulators (LDO) · SOT-353

NCP508SQ18T1G from onsemi, in a SOT-353. 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 Vin power_in Positive power supply input voltage; the absolute maximum input voltage is 13.0 V and the recommended maximum operating input voltage is 7.0 V.
2 GND power_in Power supply ground pin for the regulator.
3 Enable input Enable input that places the device into low-power standby when pulled low, and must be connected to Vin if the function is not used; the enable voltage is rated from -0.3 V to Vin(max) + 0.3 V.
4 N/C unconnected Not connected pin.
5 Vout power_out Regulated output voltage; the output is specified for at least 50 mA output current at Vout(nom) − 0.1 V.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOT-353
Category Power Management ICs
Pins 5

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 Tolerance (TA = 25°C, Iout = 10 mA) Vout -2 2 % TA = 25°C, Iout = 10 mA 3
Output Voltage Tolerance (TA = −40°C to 85°C, Iout = 10 mA) Vout -3 3 % TA = −40°C to 85°C, Iout = 10 mA 3
Line Regulation Regline 2 20 mV Vin = Vout + 1 V to 12 V, Iout = 10 mA (Note 5) 3
Load Regulation Regload 6 40 mV Iout = 1.0 mA to 50 mA (Note 5) 3
Output Current Iout(nom) 50 mA Vout = Vout(nom) − 0.1 V 3
Dropout Voltage Vin−Vout 140 250 mV Vout = 3.0 V, measured at Vout − 100 mV; Iout = 30 mA 3
Dropout Voltage Vin−Vout 155 300 mV Vout = 3.0 V, measured at Vout − 100 mV; Iout = 40 mA 3
Quiescent Current IQ 0.1 1 A Enable Input = 0 V 3
Ground Current IGND 145 200 A Enable Input = Vin, Vin = Vout + 1 V, Iout = 0 mA 3
Ground Current IGND 160 260 A Enable Input = Vin, Iout = 1 mA 3
Ground Current IGND 300 500 A Enable Input = Vin, Iout = 10 mA 3
Ground Current IGND 1100 1900 A Enable Input = Vin, Iout = 50 mA 3
Enable Input Threshold Voltage (Voltage Increasing, Output Turns On, Logic High) Vth(en) 0.9 V Voltage increasing, output turns on, logic high 3
Enable Input Threshold Voltage (Voltage Decreasing, Output Turns Off, Logic Low) Vth(en) 0.15 V Voltage decreasing, output turns off, logic low 3
Enable Input Current Ienable 8 15 A Venable = 2.4 V 3
Output Short Circuit Current Limit Iout(max) 100 250 mA Vout = 0 V 3
Maximum Operating Input Voltage Vin 7 V 2
Input Voltage Vin(max) 13 V 2
Enable Voltage Enable -0.3 V Maximum printed as Vin(max) + 0.3 V (expression, not computed here) 2
Output Voltage Vout -0.3 V Maximum printed as Vin(max) + 0.3 V (expression, not computed here) 2
Maximum Junction Temperature TJ 125 °C 2
Operating Ambient Temperature TA -40 85 °C 2
Storage Temperature Tstg -55 150 °C 2
Lead Soldering Temperature Tsolder 260 °C 10 sec 2
Thermal Resistance, Junction-to-Ambient (SC-88A) RJA 200 °C/W Note 4: 30 x 30 mm PCB, Cu 1 oz, TA = 25°C 2

CAD (KiCad official)

  • Symbol: NCP508SQ18T1G
  • Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
  • 3D model: SOT-353 (KiCad packages3D, STEP)
  • 3D model files: ncp508sq18t1g-etched.step / ncp508sq18t1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ncp508sq18t1g.step / ncp508sq18t1g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (16 pp, sha256 e4d15211f4fe0732, retrieved 2026-10-30, 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