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AMS1117-2.5 SOT-89
Public Made by Adomby adom
Slkor(SLKORMICRO Elec.) Linear Voltage Regulators (LDO), SOT-89-3. 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
markdownAMS1117-2.5 SOT-89
Slkor(SLKORMICRO Elec.) · Linear Voltage Regulators (LDO) · SOT-89-3
AMS1117-2.5 SOT-89 from Slkor(SLKORMICRO Elec.), in a SOT-89-3. 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 | GND | power_in | Ground reference pin (ADJ/GND on the datasheet); on the fixed 2.5V version it is ground and can be connected to the low side of the load. |
| 2 | VOUT | power_out | Regulated output (2.450 to 2.550V for the 2.5V version, up to 0.8A) that needs a capacitor of at least 10uF tantalum with ESR not above 0.5 ohm to GND for stability. |
| 3 | VIN | power_in | Input voltage pin, maximum 18V, with a 10uF tantalum input capacitor recommended. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Slkor(SLKORMICRO Elec.) |
| Package | SOT-89-3 |
| Category | Power Management ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| Output voltage | VOUT | 2.45 | 2.5 | 2.55 | V | 10mA≤IOUT≤0.8A, VIN=Vout+2V, AMS1117-2.5 | 3 |
| Line regulation | 0.15 | 0.3 | % | (VOUT+1.5V)≤VIN≤12V, IOUT=10mA | 3 | ||
| Load regulation | 0.2 | 0.5 | % | (VIN-VOUT)=2V, 10mA≤IOUT≤0.8A | 3 | ||
| Dropout voltage | 1.3 | 1.4 | V | VREF=1%, IOUT=0.8A | 3 | ||
| Current limit | 0.8 | A | (VIN-VOUT)=2V | 3 | |||
| Minimum load current | 3 | 10 | mA | 1.5V≤(VIN-VOUT)≤12V | 3 | ||
| Quiescent current | 3 | 10 | mA | VIN=VOUT+1.25V | 3 | ||
| Ripple rejection | 60 | 70 | dB | f=120Hz, Cout=22uF Tantalum, (VIN-VOUT)=3V, Iout=0.8A | 3 | ||
| Thermal regulation | 0.008 | 0.04 | %/W | TA=25℃, 30ms pulse | 3 | ||
| Temperature stability | 0.5 | % | 3 | ||||
| Long-term stability | 0.3 | 1 | % | TA=125℃, 1000hrs. | 3 | ||
| RMS output noise (% of VOUT) | 0.003 | % | TA=25℃, 10Hz≤f≤10kHz | 3 | |||
| Thermal shutdown | 150 | ℃ | Junction temperature | 3 | |||
| Thermal shutdown hysteresis | 10 | ℃ | 3 | ||||
| Thermal resistance, junction to case (SOT89) | 20 | ℃/W | SOT89 | 3 | |||
| Input voltage | VIN | 18 | V | 2 | |||
| Operating junction temperature range | TJ | -40 | 125 | ℃ | 2 | ||
| Thermal resistance (SOT89) | θJA | 225 | ℃/W | SOT89 | 2 | ||
| Maximum power dissipation (SOT89) | PD | 400 | mW | SOT89 | 2 |
CAD (KiCad official)
- Symbol:
AMS1117-2.5 SOT-89 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
ams1117-2-5-sot-89-etched.step/ams1117-2-5-sot-89-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ams1117-2-5-sot-89.step/ams1117-2-5-sot-89.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Slkor(SLKORMICRO Elec.) datasheet (9 pp, sha256
cbfce94940091e66, retrieved 2026-10-22, 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).