component
ICW1117-3.3V
Public Made by Adomby adom
ICW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. 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
markdownICW1117-3.3V
ICW · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89
ICW1117-3.3V from ICW, in a SOT-89. 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 pin on the fixed-output 3.3V version (labelled ADJ/GND; it is the ADJ pin on the adjustable version), and the ground return of the regulator. |
| 2 | VOUT | power_out | Regulated 3.3V output (3.234 V to 3.366 V, up to 1A) that needs an output capacitor to GND with ESR no greater than 0.5 ohm, and is also electrically connected to the package tab. |
| 3 | VIN | power_in | Supply input, operating range up to 15 V typical with an absolute maximum of 18 V, where an input bypass capacitor of 10 uF is recommended. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ICW |
| Package | SOT-89 |
| 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 voltage | Vin | 15 | 18 | V | 3 | ||
| Output voltage (TX1117-3.3V) | Vout | 3.234 | 3.3 | 3.366 | V | 0≤Iout≤1A, Vin=4.6V | 3 |
| Line regulation (TX1117-3.3V) | △Vout | 9 | 49 | mV | Iout=10mA, 4.6V≤Vin≤12V | 4 | |
| Load regulation (TX1117-3.3) | △Vout | 10 | 40 | mV | Vin =4.6V, 10mA≤Iout≤1A | 4 | |
| Dropout voltage | Vdrop | 1.15 | 1.3 | V | Iout =100mA | 5 | |
| Dropout voltage | Vdrop | 1.3 | 1.5 | V | Iout=1A | 5 | |
| Quiescent current (TX1117-3.3V) | Iq | 2 | 5 | mA | Vin=12V | 5 | |
| Maximum input voltage | 18 | V | 3 | ||||
| Maximum operating junction temperature (Tj) | Tj | 150 | ℃ | 3 | |||
| Storage temperature | Ts | -55 | 150 | ℃ | 3 | ||
| Lead temperature and time | 260 | ℃ | 10S | 3 | |||
| Ambient operating temperature | -40 | 85 | ℃ | Ambient temperature (from Features list) | 2 | ||
| Junction temperature for guaranteed operation | 125 | ℃ | Guaranteed maximum junction temperature | 7 | |||
| Output capacitor ESR | ESR | 0.5 | Ω | Output capacitor, must not exceed | 7 |
CAD (KiCad official)
- Symbol:
ICW1117-3.3V - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
icw1117-3-3v-etched.step/icw1117-3-3v-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);icw1117-3-3v.step/icw1117-3-3v.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ICW datasheet (10 pp, sha256
0db1c8f8d01a07d1, retrieved 2026-10-18, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).