component
LM317LIDR
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOIC-8. 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
markdownLM317LIDR
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOIC-8
LM317LIDR from Texas Instruments, in a SOIC-8. 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 | INPUT | power_in | Input supply voltage; maximum input-to-output differential voltage is 45V for new chip (CSO:RFB) per page 4 absolute maximum ratings. |
| 2 | OUTPUT | power_out | Regulated output voltage, adjustable from 1.25V to 37V at up to 100mA output current. |
| 3 | OUTPUT | power_out | Regulated output voltage, internally connected to OUTPUT pins 2, 6, and 7. |
| 4 | ADJUSTMENT | input | Output feedback voltage input; device maintains 1.22-1.292V reference voltage (new chip CSO:RFB) between adjustment and output pins. |
| 5 | NC | unconnected | No internal connection; grounding recommended for improved thermal performance but not required. |
| 6 | OUTPUT | power_out | Regulated output voltage, internally connected to OUTPUT pins 2, 3, and 7. |
| 7 | OUTPUT | power_out | Regulated output voltage, internally connected to OUTPUT pins 2, 3, and 6. |
| 8 | NC | unconnected | No internal connection; grounding recommended for improved thermal performance but not required. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM317LIDR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
lm317lidr-etched.step/lm317lidr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm317lidr.step/lm317lidr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (39 pp, sha256
a7e2e8839b8e53b3, retrieved 2026-09-22, tier: manufacturer) - 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).