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ASPL1117-ADJ-DT-R
Public Made by Adomby adom
ASDsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223. 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
markdownASPL1117-ADJ-DT-R
ASDsemi · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223
ASPL1117-ADJ-DT-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/GND | input | Adjust pin of the ASPL1117-ADJ; the output voltage is set by the external divider from Vout (Vout = 1.25×(1+R2/R1)+IAdj×R2) with IAdj of 55 to 120 µA, and the datasheet labels this pin ADJ/GND. |
| 2 | Vout | power_out | Regulated output of the 0.9A low-dropout regulator, rated for a maximum output current of 0.9A with a typical dropout of 1.3V at 0.9A load. |
| 3 | Vin | power_in | Regulator input with a maximum input voltage of 20V per the absolute maximum ratings, and a minimum of about 2.75V required for the ADJ version's line-regulation test range. |
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 |
|---|---|---|---|---|---|---|---|
| Reference voltage | Vref | 1.225 | 1.25 | 1.275 | V | 10mA≤Iout≤0.9A,Vin=3.25V | 3 |
| Line regulation | ΔVout | 0.03 | 0.2 | %/V | Iout=10mA, 2.75V≤Vin≤12V | 3 | |
| Load regulation | ΔVout | 2 | 8 | mV | Vin =2.75V, 10mA≤Iout≤0.9A | 3 | |
| Dropout voltage | Vdrop | 1.23 | 1.3 | V | Iout =100mA | 4 | |
| Dropout voltage | Vdrop | 1.3 | 1.5 | V | Iout=0.9 | 4 | |
| Current limit | Ilimit | 0.8 | 0.9 | A | Vin-Vout=2V;Tj =25℃ | 4 | |
| Minimum load current (ADJ) | Imin | 2 | 10 | mA | 4 | ||
| Adjust pin current (ADJ) | IAdj | 55 | 120 | uA | 4 | ||
| Iadj change (ADJ) | Ichange | 0.2 | 10 | uA | 4 | ||
| Temperature coefficient | ΔV/ΔT | -100 | 100 | ppm | 4 | ||
| Thermal resistance junction-to-case | θJC | 20 | ℃/W | SOT-223 | 4 | ||
| Max input voltage | 20 | V | 2 | ||||
| Max power dissipation | Pd | 1 | W | 2 | |||
| Max output current | 0.9 | A | 2 | ||||
| Recommended operating junction temperature | Tj | -20 | 125 | ℃ | 2 | ||
| Max operating junction temperature | Tj | 150 | ℃ | 2 | |||
| Ambient temperature | Ta | -20 | 85 | ℃ | 2 | ||
| Storage temperature | Ts | -40 | 150 | ℃ | 2 | ||
| Lead temperature | 260 | ℃ | 10S | 2 |
CAD (KiCad official)
- Symbol:
ASPL1117-ADJ-DT-R - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223 (KiCad packages3D, STEP)
- 3D model files:
aspl1117-adj-dt-r-etched.step/aspl1117-adj-dt-r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);aspl1117-adj-dt-r.step/aspl1117-adj-dt-r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ASDsemi datasheet (11 pp, sha256
d2dac7de9ca107f2, retrieved 2026-10-18, tier: lcsc) - 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).