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IL317D0T

Public Made by Adom

by adom

IKSEMICON Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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IL317D0T

IKSEMICON · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252

IL317D0T from IKSEMICON, 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 ADJ/GND passive Adjustment pin that sets the output voltage via the R1/R2 divider (Vout = 1.25 V (1 + R2/R1) + IADJ*R2), with adjustment pin current typically 50 µA and 100 µA max.
2 Output power_out Regulated output adjustable from 1.2 V to 37 V at more than 1.5 A, with internal current limiting and thermal shutdown; the heatsink tab is connected to this pin.
3 Input power_in Unregulated input supply, with input-output voltage differential limited to 40 Vdc maximum.

Key specifications

Parameter Value
Manufacturer IKSEMICON
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
Input - Output Voltage Differential Vi - Vo 40 Vdc 2
Operating Junction Temperature Range TJ -40 150 C 2
Storage Junction Temperature Range Tstg -65 150 C 2
Operating Temperature Range (ordering table, all packages) TA -40 125 C for all packages 1
Line Regulation (TA=+25C) Regline 0.01 0.04 /V TA=+25C; 3.0 V <= Vi-Vo <= 40 V 3
Load Regulation (TJ=+25C) Regload 5 25 mV TJ=+25C; 10 mA <= Io <= Imax; Vin <= 5 V 3
Load Regulation (TJ=+25C) Regload 0.1 0.5 /Vo TJ=+25C; 10 mA <= Io <= Imax; Vin >= 5 V 3
Thermal Regulation (TA=+25C) 0.03 0.07 /W TA=+25C; 20 ms pulse 3
Adjustment Pin Current IAdj 50 100 A 3
Adjustment Pin Current Change IAdj 0.2 5 A 2.5 V <= Vi-Vo <= 40 V; 10 mA <= IL <= Imax, PD <= Pmax 3
Reference Voltage (Note 4) Vref 1.2 1.25 1.3 V 3.0 V <= Vi-Vo <= 40 V; 10 mA <= IL <= Imax, PD <= Pmax 3
Line Regulation (Note 3) Regline 0.02 0.07 /V Note 3; 3.0 V <= Vi-Vo <= 40 V 3
Load Regulation (Note 3) Regload 20 70 mV Note 3; 10 mA <= Io <= Imax; Vin <= 5 V 3
Load Regulation (Note 3) Regload 0.3 1.5 /V Note 3; 10 mA <= Io <= Imax; Vin >= 5 V 3
Minimum Load Current to Maintain Regulation ILmin 3.5 10 mA Vi-Vo = 40 V 3
Maximum Output Current Imax 1.5 2.2 A Vi-Vo <= 15 V, P <= 20 W 3
Maximum Output Current Imax 0.15 0.4 A Vi-Vo = 40 V, P <= 20 W, TA=+25C 3
Ripple Rejection (with Cadj) RR 66 80 dB Vo = 10 V, f = 120 Hz; Note 5; Cadj = 10 uF 3
Long-Term Stability (Tj = Thigh) S 0.3 1 /1.0 k Hrs. Tj = Thigh (Note 6); TA=+25C for endpoint measurements 3
Temperature Stability Ts 0.7 Tlow <= Tj <= Thigh 3
Ripple Rejection (without Cadj) RR 65 dB Vo = 10 V, f = 120 Hz; Note 5; without Cadj 3
RMS Noise, % of Vo N 0.003 /Vo TA=+25C, 10 Hz <= f <= 10 kHz 3
Thermal Resistance Junction to Case RJC 5 C/W 3

CAD (KiCad official)

  • Symbol: IL317D0T
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252 (KiCad packages3D, STEP)
  • 3D model files: il317d0t-etched.step / il317d0t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); il317d0t.step / il317d0t.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: IKSEMICON datasheet (7 pp, sha256 0bf87546665ed2ed, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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