component
ASPL317LDT-R
Public Made by Adomby adom
ASDsemi DC-DC Converters, SOT-223. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 8d ago |
| viewers | 8d ago |
| aspl317ldt-r-etched.glb | 8d ago |
| aspl317ldt-r-etched.step | 8d ago |
| aspl317ldt-r-hero.glb | 8d ago |
| aspl317ldt-r-hero.overlay.json | 8d ago |
| aspl317ldt-r.glb | 8d ago |
| aspl317ldt-r.kicad_mod | 8d ago |
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| aspl317ldt-r.lbr | 8d ago |
| aspl317ldt-r.step | 8d ago |
| package.json | 8d ago |
| page.json | 8d ago |
| README.md | 8d ago |
ASPL317LDT-R
ASDsemi · DC-DC Converters · SOT-223
ASPL317LDT-R from ASDsemi, in a SOT-223. 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 | passive | Adjust pin that sets the output voltage between 1.3V and 35V; adjust pin current is typically 50µA (max 100µA). |
| 2 | OUT | power_out | Regulated output, supplying more than 1A with output voltage adjustable from 1.3V to 35V, with internal short-circuit and over-temperature protection. |
| 3 | INPUT | power_in | Unregulated input; the input-to-output voltage difference must not exceed 37V (absolute maximum). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ASDsemi |
| Package | SOT-223 |
| 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 |
|---|---|---|---|---|---|---|---|
| Storage temperature | TS | -40 | 150 | °C | 2 | ||
| Input - Output voltage difference | Vin-Vout | 37 | V | 2 | |||
| Maximum junction temperature | TJ | 150 | °C | 2 | |||
| Lead temperature | TLEAD | 260 | °C | soldering, 10sec | 2 | ||
| ESD (human body model) | ESD | 4000 | V | human body model | 2 | ||
| Reference voltage | VREF | 1.2 | 1.25 | 1.3 | V | 10mA≤ IOUT ≤1A; 3V≤ (VIN-VOUT) ≤37V; PD≦ 20W | 3 |
| Line regulation | S V | 0.01 | 0.04 | %/V | 3V≦ VIN-VOUT≦ 37V | 3 | |
| Load regulation | Si | 0.2 | 0.4 | % | 0mA≦ IOUT≦ 1A | 3 | |
| Adjust pin current | Iadj | 50 | 100 | µA | 3 | ||
| Adjust pin current change | ΔIadj | 0.2 | 5 | µA | 3V≦ VIN-VOUT≦ 37V, 10mA≦ IOUT≦ 1A, PD≦ 20W | 3 | |
| Minimum load current | ILmin | 3.5 | 10 | mA | VIN-VOUT=37V | 3 | |
| Ripple rejection | RR | 60 | 75 | dB | f=120Hz, COUT=1µF tantalum, (VIN-VOUT)=3V, IOUT=1A | 3 | |
| Temperature stability | 0.7 | % | TMIN≦ TJ ≦ TMAX | 3 | |||
| RMS output noise (% of VOUT) | en | 0.003 | % | Ta=25℃, 10Hz≤ f ≤10kHz | 3 | ||
| Thermal resistance, junction to case (SOT-223) | θJC | 23 | ℃/W | 3 | |||
| Thermal resistance, junction to ambient (SOT-223) | θJA | 165 | ℃/W | 3 | |||
| Thermal shutdown hysteresis | Thys | 25 | ℃ | 3 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | Abs | ESD (human body model) ESD 4000 V *: Absolute maximum ratings are stress ratings only and functional device operation is | 2 |
CAD (KiCad official)
- Symbol:
ASPL317LDT-R - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223 (KiCad packages3D, STEP)
- 3D model files:
aspl317ldt-r-etched.step/aspl317ldt-r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);aspl317ldt-r.step/aspl317ldt-r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ASDsemi datasheet (9 pp, sha256
e4699fe49507fa06, retrieved 2026-10-19, 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).