# AOZ7203AV

**Alpha & Omega Semicon** · AC-DC Controllers And Regulators · SOIC-8

AOZ7203AV 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 | ACL | input | AC input L is sensed by the controller and must not have a DC voltage applied between ACL and ACN; ACL to GND is rated 440 V DC with 700 V peak transient for 10 minutes over lifetime. |
| 2 | NC | unconnected | No connection; the datasheet assigns no function to this pin. |
| 3 | GATEL | output | Gate driver for the low-side N-channel MOSFET, rated -0.3 V to (VCC + 0.3 V) to GND, with pull-high source current 125 to 295 mA and pull-low sink current 300 to 430 mA at VCC = 16 V. |
| 4 | VCC | power_in | Power source for the controller, self-powered from the AC line; the datasheet gives UVLO rising 15.5 to 17.5 V, UVLO falling 11 to 14 V, and an absolute maximum of -0.3 V to +24 V to GND. |
| 5 | GND | power_in | Ground reference for the controller and the reference for all pin voltages. |
| 6 | GATEN | output | Gate driver for the low-side N-channel MOSFET on the opposite AC half-cycle, rated -0.3 V to (VCC + 0.3 V) to GND, with pull-high source current 125 to 295 mA and pull-low sink current 300 to 430 mA at VCC = 16 V. |
| 7 | NC | unconnected | No connection; the datasheet assigns no function to this pin. |
| 8 | ACN | input | AC input N is sensed by the controller and must not have a DC voltage applied between ACL and ACN; ACN to GND is rated 440 V DC with 700 V peak transient for 10 minutes over lifetime. |

## 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 |
|---|---|---|---|---|---|---|---|
| Repetitive Peak Reverse Voltage | VRRM | 440 |  |  | V | IACL/N = 250µA | 3 |
| VCC UVLO Rising | VCC_UP | 15.5 | 16.5 | 17.5 | V | VCC rising | 3 |
| VCC UVLO Falling | VCC_UVLO | 11 | 12.5 | 14 | V | VCC falling | 3 |
| ACL, ACN Charging for Vcc | ICharge | 2 |  | 2.8 | mA | VACL/N, VCC = 13V | 3 |
| ACL, ACN Non-charging | Ioff | 1 |  | 2 | μA | VACL/N = 600V | 3 |
| X-discharge Current | Ix-dis | 2 |  | 3 | mA | VACL/N, VCC = 13V | 3 |
| X-discharge Delay Time | Tx-delay | 80 | 120 | 160 | ms | VACL/N rising | 3 |
| Vcc Operation Current at On-state | IOP | 35 |  | 45 | μA | VACL/N =0V, VACL/N =7V | 3 |
| Switch Turn-on Threshold | VACL/N_ON |  | 5 |  | V | VACN/L =0V, VACL/N rising | 3 |
| Switch Turn-off Threshold | VACL/N_OFF |  | 0.75 |  | V | VACN/L =0V, VACL/N falling | 3 |
| Turn-on Delay Time | Td_on | 4 |  | 5 | µs | VACN/L =0V, VACL/N rising | 3 |
| Turn-off Delay Time | Td_off | 0.1 |  | 0.2 | µs | VACN/L =0V, VACL/N falling | 3 |
| ACL, ACN Propagation Delay Time | Tpp | 15 | 45 | 65 | µs | GATEL, GATEN swap states | 3 |
| Gate Pull-high Current | IGATEL/N_source | 125 | 200 | 295 | mA | Vcc=16V VGATEL/N =10V | 3 |
| Gate Pull-low Current | IGATEL/N_sink | 300 | 380 | 430 | mA | Vcc=16V VGATEL/N =6V | 3 |
| Gate Pull-high Resistance | RGATEL/N_source | 15 | 20 | 25 | Ω |  | 3 |
| Gate Pull-low Resistance | RGATEL/N_sink | 4 | 7 | 10 | Ω |  | 3 |
| VCC to GND |  | -0.3 |  | 24 | V |  | 3 |
| ACL, ACN to GND, Peak Transient Voltage |  | -1 |  | 700 | V | Note 1: peak voltages can be applied for 10 minutes over a lifetime | 3 |
| ACL, ACN to GND, Negative Transient |  | -5 |  |  | V | Note 1 (negative transient) | 3 |
| GATEL, GATEN to GND |  | -0.3 |  |  | V | Maximum printed as (VCC + 0.3 V) | 3 |
| Storage Temperature | TS | -40 |  | 150 | °C |  | 3 |
| ESD Rating, human body model, ACL, ACN |  |  |  | 1 | kV | Human body model: 1.5kΩ in series with 100pF | 3 |
| ESD Rating, human body model, GATEL, GATEN, VCC |  |  |  | 2 | kV | Human body model: 1.5kΩ in series with 100pF | 3 |
| ESD Rating, charge device model |  |  |  | 1 | kV |  | 3 |
| ACL, ACN to GND, DC |  |  |  | 440 | V |  | 3 |
| Junction Temperature | TJ | -40 |  | 125 | °C |  | 3 |
| Package Thermal Resistance SO8 | ΘJA |  | 115 |  | °C/W | SO8 package | 3 |

## CAD (KiCad official)

- Symbol: `AOZ7203AV`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `aoz7203av-etched.step` / `aoz7203av-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `aoz7203av.step` / `aoz7203av.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Alpha & Omega Semicon datasheet](docs/aoz7203av-datasheet.pdf) (8 pp, sha256 `06d803ff0f2d529d`, retrieved 2026-10-28, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/aoz7203av-datasheet.pdf)