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LM317D2TRG

HANSCHIP semiconductor · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-263-2

LM317D2TRG from HANSCHIP semiconductor, in a TO-263-2. 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: the adjust-pin current IAdj is designed to stay below 100 µA and constant, with all quiescent current returned to the output, so the output voltage is set by the external resistor divider from this pin (page 4).
2 VOUT power_out Regulated output pin, rated for up to 1.5 A output current (IOUT max) with an input-output differential of at most 40 V (page 3).
3 Vin power_in Unregulated input supply pin; the input-to-output differential VI-VO must not exceed 40 V (page 3).

Key specifications

Parameter Value
Manufacturer HANSCHIP semiconductor
Package TO-263-2
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 3V≤ (VIN − VOUT) ≤40V , 10 mA ≤IOUT ≤IMAX, P ≤PMAX 3
Reference voltage (wide row) Vref 1.2 1.25 1.3 V 3
Line regulation Regline 0.01 0.04 %/V 3V≤ (VIN − VOUT) ≤40V 3
Line regulation (wide row) Regline 0.01 0.07 %/V 3
Load regulation Regload 0.1 0.5 % 10 mA ≤IOUT ≤IMAX 3
Load regulation (wide row) Regload 0.3 1.5 % 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
Maximum output current Imax 1 1.95 A (VIN − VOUT) ≤15V,T 封装 3
Thermal regulation Reftherm 0.04 0.07 %/W 3
Ripple rejection (CADJ=10 µF row) RR 66 80 dB VOUT=10V, f =12 Hz,CADJ=10 μF 3
Input-output differential voltage VI-VO 40 V 3
Output current IOUT 1.5 A 3
Operating junction temperature TJ -40 125 ℃ 3
Storage temperature TS -65 150 ℃ 3
Operating ambient temperature (LM317 grade) TA 0 70 ℃ LM317 (not LM317A; LM317A is -40~85) 3
Lead temperature (soldering) TLEAD 245 ℃ 焊接 10s 3
Temperature stability TS 1 % TMIN ≤TJ ≤TMAX 3
RMS output noise N 0.003 % 10 Hz ≤f ≤10 kHz 3
Ripple rejection (CADJ=0 row) RR 65 dB VOUT=10V, f=120 Hz,CADJ=0 μF 3

CAD (KiCad official)

  • Symbol: LM317D2TRG
  • Footprint: Package_TO_SOT_SMD:TO-263-2
  • 3D model: TO-263-2 (KiCad packages3D, STEP)
  • 3D model files: lm317d2trg-etched.step / lm317d2trg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm317d2trg.step / lm317d2trg.glb are 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, 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