component

LM317MQDCYRG4

Public Made by Adom

by adom

Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)lm317mqdcyrg4factory-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 Publish 0.1.0 · Ray 3h ago
viewers lm317mqdcyrg4: viewers · Ray 3h ago
lm317mqdcyrg4-etched.glb lm317mqdcyrg4: factory component page (tier=lcsc) · Ray 3h ago
lm317mqdcyrg4-etched.step lm317mqdcyrg4: factory component page (tier=lcsc) · Ray 3h ago
lm317mqdcyrg4-hero.glb Publish 0.1.0 · Ray 3h ago
lm317mqdcyrg4-hero.overlay.json Publish 0.1.0 · Ray 3h ago
lm317mqdcyrg4.glb Publish 0.1.0 · Ray 3h ago
lm317mqdcyrg4.kicad_mod Publish 0.1.0 · Ray 3h ago
lm317mqdcyrg4.kicad_sym Publish 0.1.0 · Ray 3h ago
lm317mqdcyrg4.lbr Publish 0.1.0 · Ray 3h ago
lm317mqdcyrg4.step Publish 0.1.0 · Ray 3h ago
package.json Publish 0.1.0 · Ray 3h ago
page.json Set visibility: public · Ray 3h ago
README.md Initial commit: component/lm317mqdcyrg4 · Ray 3h ago

LM317MQDCYRG4

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-4

LM317MQDCYRG4 from Texas Instruments, in a SOT-223-4. 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 input Output feedback voltage pin; the OUTPUT pin regulates to 1.25V above ADJUST, set by two external resistors.
2 OUTPUT power_out Regulated output voltage; use the recommended capacitor values from the Recommended Operating Conditions table and place the output capacitor as close as possible to the OUTPUT pin.
3 INPUT power_in Input supply voltage, 2.5V to 37V relative to the OUTPUT pin; place the input capacitor as close as possible to the INPUT pin.
4 OUTPUT power_out Tab/fourth lead shown as OUTPUT in the DCY package drawing, internally the same regulated output as pin 2.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-223-4
Category Power Management (PMIC)
Pins 4

CAD (KiCad official)

  • Symbol: LM317MQDCYRG4
  • Footprint: Package_TO_SOT_SMD:SOT-223
  • 3D model: SOT-223-4 (KiCad packages3D, STEP)
  • 3D model files: lm317mqdcyrg4-etched.step / lm317mqdcyrg4-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm317mqdcyrg4.step / lm317mqdcyrg4.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (33 pp, sha256 988337ba1dd9fdf7, retrieved 2026-10-07, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (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