component

NCP1117ST50T3G

Public Made by Adom

by adom

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

componentpower management (pmic)ncp1117st50t3gfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs ncp1117st50t3g: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray 17d ago
viewers ncp1117st50t3g: viewers · Ray 24d ago
ncp1117st50t3g-etched.glb ncp1117st50t3g: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray 17d ago
ncp1117st50t3g-etched.step ncp1117st50t3g: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray 17d ago
ncp1117st50t3g-hero.glb ncp1117st50t3g: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray 17d ago
ncp1117st50t3g-hero.overlay.json ncp1117st50t3g: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray 17d ago
ncp1117st50t3g.glb Publish 0.1.0 · Ray 24d ago
ncp1117st50t3g.kicad_mod Publish 0.1.0 · Ray 24d ago
ncp1117st50t3g.kicad_sym Publish 0.1.0 · Ray 24d ago
ncp1117st50t3g.lbr Publish 0.1.0 · Ray 24d ago
ncp1117st50t3g.step Publish 0.1.0 · Ray 24d ago
package.json ncp1117st50t3g: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray 17d ago
page.json ncp1117st50t3g: etch along the lead row, tab up; full MPN text (service-occt 1.9.3) (service-occt 1.6.0, from the plain… · Ray 17d ago
README.md ncp1117st50t3g: specified limits as data (metadata.characteristics, 17 rows from the datasheet) · Ray 19d ago

NCP1117ST50T3G

onsemi · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223

NCP1117ST50T3G from onsemi, in a SOT-223. 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 Adjust/Ground power_in Adjust/ground pin, which on the fixed 5.0 V device is the ground return and carries a ground current that the datasheet gives as 3.0 mA to 5.0 mA depending on output voltage.
2 Output power_out Regulated 5.0 V output (4.90 V to 5.10 V at 0 to 800 mA for Vin of 6.5 V to 12 V) that can deliver more than 1.0 A, with a required output capacitor of at least 4.7 µF and ESR between 33 mΩ (typ) and 2.2 Ω; the heatsink tab is connected to this pin.
3 Input power_in Unregulated input supply that must not exceed 20 V (absolute maximum), with a maximum dropout of 1.2 V at 800 mA over temperature and an input bypass capacitor of about 10 µF recommended.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOT-223
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, Fixed 5.0 V (Vin = 7.0 V, Iout = 10 mA, TA = 25°C) Vout 4.95 5 5.05 V Vin = 7.0 V, Iout = 10 mA, TA = 25°C 4
Output Voltage, Fixed 5.0 V (full range) Vout 4.9 5.1 V Vin = 6.5 V to 12 V, Iout = 0 mA to 800 mA (Note 4) 4
Dropout Voltage (Iout = 100 mA) Vin−Vout 0.95 1.1 V Measured at Vout − 100 mV, Iout = 100 mA 4
Dropout Voltage (Iout = 500 mA) Vin−Vout 1.01 1.15 V Measured at Vout − 100 mV, Iout = 500 mA 4
Dropout Voltage (Iout = 800 mA) Vin−Vout 1.07 1.2 V Measured at Vout − 100 mV, Iout = 800 mA 4
Line Regulation, 5.0 V Regline 0.9 6 mV Vin = 6.5 V to 15 V, Iout = 0 mA 4
Load Regulation, 5.0 V Regline 6.7 10 mV Iout = 0 mA to 800 mA, Vin = 6.5 V 4
Ripple Rejection, 5.0 V RR 60 64 dB Vin−Vout = 6.4 V, Iout = 500 mA, 10 Vpp 120 Hz Sinewave 5
Output Current Limit Iout 1000 1500 2200 mA Vin−Vout = 5.0 V, TA = 25°C, Note 6 4
Quiescent Current, 5.0 V IQ 6 10 mA Vin = 15 V 5
Thermal Regulation 0.01 0.1 %/W TA = 25°C, 30 ms Pulse 5
Input Voltage (absolute maximum) Vin 20 V Note 1 3
Maximum Die Junction Temperature Range TJ -55 150 °C 3
Storage Temperature Range Tstg -65 150 °C 3
Operating Ambient Temperature Range (NCP1117) TA 0 125 °C NCP1117 (commercial) grade 3
Thermal Resistance, Junction-to-Ambient, SOT-223 Minimum Size Pad RJA 160 °C/W Case 318H (SOT-223), minimum size pad 3
Thermal Resistance, Junction-to-Case, SOT-223 RJC 15 °C/W Case 318H (SOT-223) 3

CAD (KiCad official)

  • Symbol: NCP1117ST50T3G
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223 (KiCad packages3D, STEP)
  • 3D model files: ncp1117st50t3g-etched.step / ncp1117st50t3g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ncp1117st50t3g.step / ncp1117st50t3g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (20 pp, sha256 c962358436ca7db6, retrieved 2026-10-09, tier: lcsc)
  • 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