component

YFW1117-ADJ

Public Made by Adom

by adom

YFW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)yfw1117-adjfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
yfw1117-adj / README.md
History Download
Ray Publish 0.1.0 1a0686a 16d ago

YFW1117-ADJ

YFW · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89

YFW1117-ADJ from YFW, in a SOT-89. 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 Adj(GND) power_in Adjust pin for the adjustable YFW1117-ADJ, labeled GND on the fixed-voltage versions; the adjust pin current IADJ is listed as 55 and 120 uA in the electrical characteristics.
2 Vout power_out Regulated output, rated for 10 mA to 800 mA load current with the ADJ reference of 1.25 V (1.225 V to 1.275 V) set between Vout and the adjust pin.
3 Vin power_in Input supply, with a maximum input voltage of 18 V and a required input-to-output differential of 1.5 V to 12 V for the ADJ version.

Key specifications

Parameter Value
Manufacturer YFW
Package SOT-89
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
Reference Voltage VREF 1.225 1.25 1.275 V YFW1117-ADJ; 10mA≤IOUT≤800mA, 1.5V≤VIN - VOUT ≤12V 2
Line Regulation ΔVOUT 0.035 0.2 % YFW1117-ADJ; Iout=10mA, 1.5V≤Vin-Vout≤12V 2
Load Regulation ΔVOUT 0.2 0.4 % YFW1117-ADJ; Vin-Vout=3V, 10mA≤Iout≤800mA 2
Dropout Voltage VIN-VOUT 1.11 1.2 V ΔVout,ΔVREF=1%, IOUT=0.1A 2
Dropout Voltage VIN-VOUT 1.18 1.25 V ΔVout,ΔVREF=1%, IOUT=0.5A 2
Dropout Voltage VIN-VOUT 1.26 1.3 V ΔVout,ΔVREF=1%, IOUT=0.8A 2
Current Limit Ilimit 1.25 1.4 1.6 A VIN-VOUT=5V, TJ = 25℃ 2
Adjust Pin Current IADJ 55 120 uA 2
Adjust Pin Current Change IChange 0.2 uA 2
Maximum Input Voltage Vin 18 V Ta = 25℃ 1
Operating Junction Temperature Range TJ 150 ℃ Ta = 25℃ 1
Storage Temperature TST -65 150 ℃ 1

CAD (KiCad official)

  • Symbol: YFW1117-ADJ
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: yfw1117-adj-etched.step / yfw1117-adj-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); yfw1117-adj.step / yfw1117-adj.glb are the bare package body.

Provenance

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

  • Datasheet: YFW datasheet (4 pp, sha256 25a2432a0eee2622, retrieved 2026-10-19, 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