component
LM317KTPRG
Public Made by Adomby adom
HANSCHIP semiconductor Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252. Pinout cross-checked by two models against the datasheet, 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
markdownLM317KTPRG
HANSCHIP semiconductor · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252
LM317KTPRG from HANSCHIP semiconductor, in a TO-252. 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 | passive | Adjust terminal sets the output voltage through the external resistor divider; the datasheet states Iadj is designed to stay below 100 µA and held constant (typical 50 µA). |
| 2 | VOUT | power_out | Regulated output terminal, adjustable from 1.2 V to 37 V, supplying more than 1.5 A maximum output current. |
| 3 | Vin | power_in | Unregulated input supply terminal; the input-to-output differential VI-VO must not exceed 40 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HANSCHIP semiconductor |
| Package | TO-252 |
| 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 | 1.238 | 1.25 | 1.262 | V | 3 | |
| Reference voltage (full range) | Vref | 1.2 | 1.25 | 1.3 | V | 3V≤ (VIN − VOUT) ≤40V, 10 mA ≤IOUT ≤IMAX, P ≤PMAX | 3 |
| Line regulation | Regline | 0.01 | 0.04 | %/V | 3V≤ (VIN − VOUT) ≤40V | 3 | |
| Line regulation (second row) | Regline | 0.01 | 0.07 | %/V | 3 | ||
| Load regulation | Regload | 0.1 | 0.5 | % | 10 mA ≤IOUT ≤IMAX | 3 | |
| Load regulation (second row) | Regload | 0.3 | 1.5 | % | 3 | ||
| Thermal regulation | Reftherm | 0.04 | 0.07 | %/W | 3 | ||
| Adjust pin current | IAdj | 50 | 100 | μA | 3 | ||
| Adjust pin current change | ΔIAdj | 0.2 | 5 | μA | 3V≤ (VIN − VOUT) ≤40V , 10 mA ≤IOUT ≤IMAX | 3 | |
| Minimum load current to maintain regulation | ILmin | 3.5 | 10 | mA | (VIN − VOUT) = 40V | 3 | |
| Input-output differential voltage (absolute maximum) | VI-VO | 40 | V | 3 | |||
| Output current (absolute maximum) | IOUT | 1.5 | A | 3 | |||
| Operating junction temperature | TJ | -40 | 125 | ℃ | 3 | ||
| Storage temperature | TS | -65 | 150 | ℃ | 3 | ||
| Operating ambient temperature (LM317) | TA | 0 | 70 | ℃ | 3 | ||
| Lead temperature (soldering) | TLEAD | 245 | ℃ | soldering 10 s | 3 | ||
| Temperature stability | TS | 1 | % | TMIN ≤TJ ≤TMAX | 3 | ||
| Ripple rejection | RR | 65 | dB | VOUT=10V, f=120 Hz, CADJ=0 μF | 3 | ||
| Ripple rejection (second row) | RR | 66 | 80 | dB | VOUT=10V, f =12 Hz, CADJ=10 μF | 3 | |
| RMS noise | N | 0.003 | % | 10 Hz ≤f ≤10 kHz | 3 |
CAD (KiCad official)
- Symbol:
LM317KTPRG - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files:
lm317ktprg-etched.step/lm317ktprg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm317ktprg.step/lm317ktprg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HANSCHIP semiconductor datasheet (10 pp, sha256
a2a9eaadcb5128ab, retrieved 2026-10-18, 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, 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).