component
LM317LF
Public Made by Adomby adom
HTC Korea TAEJIN Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
LM317LF
HTC Korea TAEJIN Tech · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3
LM317LF from HTC Korea TAEJIN Tech, in a SOT-89-3. 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 | input | Adjustable pin that sets the output voltage via VOUT = 1.25V(1+R2/R1)+IADJ·R2; the datasheet gives IADJ as 46 µA typical and 100 µA maximum. |
| 2 | VOUT | power_out | Regulated output voltage, adjustable from 1.2 V to 37 V, with output current in excess of 100 mA. |
| 3 | VIN | power_in | Input voltage pin; the input-output voltage differential (VI-VO) must not exceed 40 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HTC Korea TAEJIN Tech |
| Package | SOT-89-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
LM317LF - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
lm317lf-etched.step/lm317lf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm317lf.step/lm317lf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HTC Korea TAEJIN Tech datasheet (6 pp, sha256
0c58c7a03dcc999a, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).
# LM317LF
**HTC Korea TAEJIN Tech** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3
LM317LF from HTC Korea TAEJIN Tech, in a SOT-89-3. 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 | input | Adjustable pin that sets the output voltage via VOUT = 1.25V(1+R2/R1)+IADJ·R2; the datasheet gives IADJ as 46 µA typical and 100 µA maximum. |
| 2 | VOUT | power_out | Regulated output voltage, adjustable from 1.2 V to 37 V, with output current in excess of 100 mA. |
| 3 | VIN | power_in | Input voltage pin; the input-output voltage differential (VI-VO) must not exceed 40 V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HTC Korea TAEJIN Tech |
| Package | SOT-89-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
## CAD (KiCad official)
- Symbol: `LM317LF`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files: `lm317lf-etched.step` / `lm317lf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm317lf.step` / `lm317lf.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [HTC Korea TAEJIN Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586183282644439040) (6 pp, sha256 `0c58c7a03dcc999a`, retrieved 2026-10-09, 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](docs/lm317lf-datasheet.pdf)