# AP1509-12SG-13-JSM

**JSMSEMI** · DC-DC Converters · SOP-8

AP1509-12SG-13-JSM from JSMSEMI, in a SOP-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 | VIN | power_in | Supply voltage input; operating range +4.5 V to +40 V, absolute maximum +40 V. |
| 2 | Output | output | Power switching output of the internal 3A switch; output voltage to ground absolute minimum -1 V. |
| 3 | FB | input | Output voltage feedback control input; voltage range -0.3 V to VIN. |
| 4 | EN | input | ON/OFF shutdown input; low (max 0.6 V) turns the regulator on, high (min 2.0 V) turns it off, range -0.3 V to VIN. |
| 5 | GND | power_in | Ground. |
| 6 | GND | power_in | Ground. |
| 7 | GND | power_in | Ground. |
| 8 | GND | power_in | Ground. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `AP1509-12SG-13-JSM`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `ap1509-12sg-13-jsm-etched.step` / `ap1509-12sg-13-jsm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ap1509-12sg-13-jsm.step` / `ap1509-12sg-13-jsm.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [JSMSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603591380740956160) (9 pp, sha256 `a3aefafa88950d30`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (vision), consensus `claude-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).

[Datasheet PDF](docs/ap1509-12sg-13-jsm-datasheet.pdf)