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FP6166S5CTR

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Fitipower Integrated Tech Linear Voltage Regulators (LDO), SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management icsfp6166s5ctrfactory-2.0.0extractor-text

Verified FP6166S5CTR

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

Verification log 1 record

5 Nov 2026RayPublished by the parts factory: tier lcsc, 5 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: FP6166S5CTR · SOT-23-5 · 5 pins
  • ✓copper: 5 copper pads, none touching another net
  • ✓datasheet: all 5 pin names found in the 12-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: SOT-23-5
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-0b7s3qgk/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: 5 pins = 5 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 5 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ fp6166s5ctr.kicad_sym✓ fp6166s5ctr.kicad_mod✓ fp6166s5ctr.step
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Ray Publish 0.1.0 6272876 1d ago

FP6166S5CTR

Fitipower Integrated Tech · Linear Voltage Regulators (LDO) · SOT-23-5

FP6166S5CTR from Fitipower Integrated Tech, in a SOT-23-5. 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 Power is supplied to this device from this pin, which requires an input filter capacitor, with 2.2µF to 10µF generally sufficient.
2 GND power_in Common ground pin.
3 SHDN input Pull this pin high to enable the IC and low to shut it down; keeping it floating shuts the IC down due to the built-in pull-low resistor.
4 ADJ input Voltage feedback input pin; connect ADJ and VOUT with a resistive voltage divider.
5 VOUT power_out The output supplies power to loads and requires an output capacitor of 1µF or greater to prevent oscillation.

Key specifications

Parameter Value
Manufacturer Fitipower Integrated Tech
Package SOT-23-5
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
Current Limit ILIMIT 600 800 mA RLoad=1 4
Quiescent Current IQ 45 70 µA IOUT= 0mA 4
Standby Current ISTBY 0.1 1 µA pin connected to GND 4
Reference Voltage Accuracy VREF -2 2 % IOUT= 1mA 4
Dropout Voltage VDROP 1050 1260 mV IOUT=150mA, VOUT=1.2V 4
Dropout Voltage VDROP 750 900 mV IOUT=150mA, VOUT=1.8V 4
Dropout Voltage VDROP 500 600 mV IOUT=150mA, VOUT=2.5V 4
Dropout Voltage VDROP 270 330 mV IOUT=150mA, VOUT=3.0V 4
Dropout Voltage VDROP 230 270 mV IOUT=150mA, VOUT=3.3V 4
Dropout Voltage VDROP 1730 2075 mV IOUT=300mA, VOUT=1.2V 4
Dropout Voltage VDROP 1450 1750 mV IOUT=300mA, VOUT=1.8V 4
Dropout Voltage VDROP 980 1170 mV IOUT=300mA, VOUT=2.5V 4
Dropout Voltage VDROP 510 610 mV IOUT=300mA, VOUT=3.0V 4
Dropout Voltage VDROP 400 480 mV IOUT=300mA, VOUT=3.3V 4
Dropout Voltage VDROP 1995 2395 mV IOUT=600mA, VOUT=1.2V 4
Dropout Voltage VDROP 1600 1920 mV IOUT=600mA, VOUT=1.8V 4
Dropout Voltage VDROP 1350 1620 mV IOUT=600mA, VOUT=2.5V 4
Dropout Voltage VDROP 1150 1380 mV IOUT=600mA, VOUT=3.0V 4
Dropout Voltage VDROP 890 1070 mV IOUT=600mA, VOUT=3.3V 4
Line Regulation VLINE 1 8 mV IOUT=1mA, VIN=VOUT +1V to 5V 4
Load Regulation VLOAD 6 30 mV IOUT=0mA to 150mA 4
Input Voltage VIN 2 5.5 V 3
Operating Temperature Range TOPR -40 85 ºC 3
Input and ADJ voltage to GND VIN, ADJ 6 V to GND 3
Maximum Junction Temperature TJ 150 ºC 3
Storage Temperature Range TSTG -65 150 ºC 3
Lead Temperature (Soldering, 10 sec.) TLEAD 260 ºC 10 sec. soldering 3
Allowable Operation Junction Temperature 125 ºC 10
Output Capacitor COUT 1 10 µF X5R or X7R dielectric ceramic 10
Output Capacitor ESR ESR 30 50 mΩ ceramic output capacitor between device outputs and ground 10
Adjustable Mode Output Voltage Range VOUT 1 5.5 V Adjustable mode, upper limit printed as 5.5V-Vdrop 1
Reference Voltage VREF 1 V IOUT= 1mA 4
Short Circuit Current ISHORT 500 mA 4
Ripple Rejection PSRR 70 dB VIN=VOUT+1V, fRIPPLE = 10kHz 4
Output Noise Voltage VNOISE 30 μVRMS COUT=1μF, IOUT=0mA 4
Temperature Coefficient TC 100 ppm/ºC IOUT = 1mA, VIN = 5V 4
Thermal Shutdown Threshold TSD 150 ºC 4
TSD Hysteresis 25 ºC 4
Pull-Low Resistance R 5 MΩ 5
Pin Threshold (Start-up) 1 V 5
Pin Threshold (Shutdown) 0.4 V 5
Package Thermal Resistance SOT-23-5 θJA 250 ºC/W SOT-23-5 package 3

CAD (KiCad official)

  • Symbol: FP6166S5CTR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: fp6166s5ctr-etched.step / fp6166s5ctr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fp6166s5ctr.step / fp6166s5ctr.glb are the bare package body.

Provenance

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

  • Datasheet: Fitipower Integrated Tech datasheet (12 pp, sha256 3e1538ba5c904c31, retrieved 2026-11-05, 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