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IL317D0T
Public Made by Adomby 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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);il317d0t.step/il317d0t.glbare 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, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).
# 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](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8600571862544375808) (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](docs/il317d0t-datasheet.pdf)