component
YFW1117-ADJ
Public Made by Adomby adom
YFW 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
markdownYFW1117-ADJ
YFW · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89
YFW1117-ADJ from YFW, 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 | Adj(GND) | power_in | Adjust pin for the adjustable YFW1117-ADJ, labeled GND on the fixed-voltage versions; the adjust pin current IADJ is listed as 55 and 120 uA in the electrical characteristics. |
| 2 | Vout | power_out | Regulated output, rated for 10 mA to 800 mA load current with the ADJ reference of 1.25 V (1.225 V to 1.275 V) set between Vout and the adjust pin. |
| 3 | Vin | power_in | Input supply, with a maximum input voltage of 18 V and a required input-to-output differential of 1.5 V to 12 V for the ADJ version. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | YFW |
| 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 |
|---|---|---|---|---|---|---|---|
| Reference Voltage | VREF | 1.225 | 1.25 | 1.275 | V | YFW1117-ADJ; 10mA≤IOUT≤800mA, 1.5V≤VIN - VOUT ≤12V | 2 |
| Line Regulation | ΔVOUT | 0.035 | 0.2 | % | YFW1117-ADJ; Iout=10mA, 1.5V≤Vin-Vout≤12V | 2 | |
| Load Regulation | ΔVOUT | 0.2 | 0.4 | % | YFW1117-ADJ; Vin-Vout=3V, 10mA≤Iout≤800mA | 2 | |
| Dropout Voltage | VIN-VOUT | 1.11 | 1.2 | V | ΔVout,ΔVREF=1%, IOUT=0.1A | 2 | |
| Dropout Voltage | VIN-VOUT | 1.18 | 1.25 | V | ΔVout,ΔVREF=1%, IOUT=0.5A | 2 | |
| Dropout Voltage | VIN-VOUT | 1.26 | 1.3 | V | ΔVout,ΔVREF=1%, IOUT=0.8A | 2 | |
| Current Limit | Ilimit | 1.25 | 1.4 | 1.6 | A | VIN-VOUT=5V, TJ = 25℃ | 2 |
| Adjust Pin Current | IADJ | 55 | 120 | uA | 2 | ||
| Adjust Pin Current Change | IChange | 0.2 | uA | 2 | |||
| Maximum Input Voltage | Vin | 18 | V | Ta = 25℃ | 1 | ||
| Operating Junction Temperature Range | TJ | 150 | ℃ | Ta = 25℃ | 1 | ||
| Storage Temperature | TST | -65 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
YFW1117-ADJ - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
yfw1117-adj-etched.step/yfw1117-adj-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);yfw1117-adj.step/yfw1117-adj.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: YFW datasheet (4 pp, sha256
25a2432a0eee2622, retrieved 2026-10-19, 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).