component
LM317LZ-TR
Public Made by Adomby adom
STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-92-2.54mm. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM317LZ-TR
STMicroelectronics · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-92-2.54mm
LM317LZ-TR from STMicroelectronics, in a TO-92-2.54mm. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | ADJUST | input | Adjustment terminal for output voltage programming via external resistor divider; adjustment current 50-100 µA typical. |
| 2 | IN | power_in | Positive unregulated input voltage; maximum input-output differential voltage 40 V. |
| 3 | OUT | power_out | Regulated output voltage 1.2 to 37 V; maximum output current 100 mA (VI - VO = 3 to 13 V) or 50 mA (VI - VO = 40 V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TO-92-2.54mm |
| Category | Power Management (PMIC) |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
LM317LZ-TR - Footprint:
Package_TO_SOT_THT:TO-92_Inline - 3D model: TO-92-2.54mm (KiCad packages3D, STEP)
- 3D model files:
lm317lz-tr-etched.step/lm317lz-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm317lz-tr.step/lm317lz-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (23 pp, sha256
2c1aa893a350f03d, retrieved 2026-09-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).