component
AOZ1212AI
Public Made by Adomby adom
Alpha Omega Semicon DC-DC Converters, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 16d ago |
| viewers | 16d ago |
| aoz1212ai-etched.glb | 16d ago |
| aoz1212ai-etched.step | 16d ago |
| aoz1212ai-hero.glb | 16d ago |
| aoz1212ai-hero.overlay.json | 16d ago |
| aoz1212ai.glb | 16d ago |
| aoz1212ai.kicad_mod | 16d ago |
| aoz1212ai.kicad_sym | 16d ago |
| aoz1212ai.lbr | 16d ago |
| aoz1212ai.step | 16d ago |
| package.json | 16d ago |
| page.json | 16d ago |
| README.md | 16d ago |
AOZ1212AI
Alpha Omega Semicon · DC-DC Converters · SOIC-8
AOZ1212AI from Alpha Omega Semicon, in a SOIC-8. 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 | LX | output | PWM output connection to the inductor, which must be connected externally; it also serves as the thermal connection for the output stage. |
| 2 | BST | passive | Bootstrap voltage input for the high-side driver supply, connected through a 0.1µF capacitor between BST and LX. |
| 3 | GND | power_in | Ground reference; the input capacitor and output capacitor should connect to this pin. |
| 4 | FB | input | Feedback input regulated to 0.8V, with the output voltage set by a resistor divider between the output and GND. |
| 5 | COMP | passive | External loop compensation and output of the internal error amplifier; a series RC network connects from this pin to GND. |
| 6 | EN | input | Active-HIGH enable that must be above 2.5V to enable the device and below 0.6V to disable it, and must not be left floating. |
| 7 | VIN | power_in | Supply voltage input with a range of 4.5V to 27V; all VIN pins must be connected externally. |
| 8 | VBIAS | power_out | Compensation pin of the internal linear regulator, which requires a 1µF capacitor between this pin and ground. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Alpha Omega Semicon |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage (VIN) | VIN | 4.5 | 27 | V | 3 | ||
| Output Voltage Range | VOUT | 0.8 | V | Printed max is 0.85*VIN | 3 | ||
| Ambient Temperature (TA) | TA | -40 | 85 | °C | 3 | ||
| Supply Voltage (VIN) | VIN | 30 | V | 3 | |||
| LX to GND | VLX | -0.7 | V | Printed max is VIN+0.3V | 3 | ||
| EN to GND | VEN | -0.3 | V | Printed max is VIN+0.3V | 3 | ||
| FB to GND | VFB | -0.3 | 6 | V | 3 | ||
| COMP to GND | VCOMP | -0.3 | 6 | V | 3 | ||
| VBIAS to GND | VBIAS | -0.3 | 6 | V | 3 | ||
| Junction Temperature (TJ) | TJ | 150 | °C | 3 | |||
| Storage Temperature (TS) | TS | -65 | 150 | °C | 3 | ||
| ESD Rating: Human Body Model | 2 | kV | Human body model, 1.5kΩ in series with 100pF | 3 | |||
| Package Thermal Resistance (ΘJA) SO-8 | ΘJA | 105 | °C/W | SO-8; 1-in2 FR-4 board, 2oz copper, still air, TA = 25°C | 3 | ||
| Supply Voltage (VIN) | VIN | 4.5 | 27 | V | 4 | ||
| Input Under-Voltage Lockout Threshold (rising) | VUVLO | 4.3 | V | VIN Rising | 4 | ||
| Input Under-Voltage Lockout Threshold (falling) | VUVLO | 4.1 | V | VIN Falling | 4 | ||
| Supply Current (Quiescent) | IIN | 2 | 3 | mA | IOUT = 0, VFB = 1.2V, VEN > 2V | 4 | |
| Shutdown Supply Current | IOFF | 3 | 20 | µA | VEN = 0V | 4 | |
| Feedback Voltage | VFB | 0.782 | 0.8 | 0.818 | V | 4 | |
| Load Regulation | 0.5 | % | 4 | ||||
| Line Regulation | 0.08 | % / V | 4 | ||||
| Feedback Voltage Input Current | IFB | 200 | nA | 4 | |||
| EN Input Threshold On | VEN | 2.5 | V | 4 | |||
| EN Input Threshold Off | VEN | 0.6 | V | 4 | |||
| EN Input Hysteresis | VHYS | 200 | mV | 4 | |||
| Enable Sink/Source Current | IEN | 50 | nA | 4 | |||
| Frequency | fO | 315 | 370 | 425 | kHz | 4 | |
| Maximum Duty Cycle | DMAX | 85 | % | 4 | |||
| Minimum Duty Cycle | DMIN | 6 | % | 4 | |||
| Error Amplifier Voltage Gain | GVEA | 500 | V / V | 4 | |||
| Error Amplifier Transconductance | GEA | 200 | µA / V | 4 | |||
| Current Limit | ILIM | 4 | 6 | A | 4 | ||
| Over-Temperature Shutdown Limit (TJ rising) | 145 | °C | TJ Rising | 4 | |||
| Over-Temperature Shutdown Limit (TJ falling) | 100 | °C | TJ Falling | 4 | |||
| Short Circuit Hiccup Frequency | fSC | 24 | kHz | VFB = 0V | 4 | ||
| Soft Start Interval | tSS | 6 | ms | 4 | |||
| High-Side Switch On-Resistance | RDS(ON) | 70 | 100 | mΩ | 4 | ||
| High-Side Switch Leakage | 10 | µA | VEN = 0V, VLX = 0V | 4 |
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 |
|---|---|---|---|---|
| contacts | copper | the GND pin. Pour a maximized copper area to the | 11 |
CAD (KiCad official)
- Symbol:
AOZ1212AI - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
aoz1212ai-etched.step/aoz1212ai-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);aoz1212ai.step/aoz1212ai.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Alpha Omega Semicon datasheet (18 pp, sha256
30689d8f07a2ef79, 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).