# FP6188XR-G1

**Advanced Analog Technology** · DC-DC Converters · SOP-8-EP

FP6188XR-G1 from Advanced Analog Technology, in a SOP-8-EP. 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 | BS | power_out | Bootstrap pin: a flying bootstrap capacitor connected between SW and BS supplies the high-side n-channel MOSFET gate-drive voltage, and the capacitor is charged from the internal regulator while SW is low. |
| 2 | IN | power_in | Supply voltage input: the recommended operating range is 4.5V to 23V, with an absolute maximum of 24V (VIN). |
| 3 | SW | output | Switch node connecting the internal power MOSFETs to the external inductor; absolute maximum range is -1V to VIN+0.3V. |
| 4 | GND | power_in | Ground pin for the device, which must be connected to system ground. |
| 5 | FB | input | Feedback input that senses the output through a resistive divider; the feedback voltage is 0.923V typical (0.900V to 0.946V), and the feedback overvoltage threshold is 1.1V. |
| 6 | COMP | output | Error amplifier output where a compensation network is connected to stabilize the current-mode control loop. |
| 7 | EN | input | Enable/UVLO input: the rising threshold is 1.5V typical with 200mV hysteresis, and driving it to ground shuts the device down. |
| 8 | SS | output | Soft-start pin that sets the startup ramp, with a soft-start current of 6µA at VSS=0V. |
| 9 | EP | power_in | Exposed pad that must be connected to ground; the SOP-8L (EP) thermal resistance junction-to-ambient is 83°C/W. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Advanced Analog Technology |
| Package | SOP-8-EP |
| Category | Power Management (PMIC) |
| Pins | 9 |

## 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 | -0.3 |  | 24 | V |  | 4 |
| Supply Voltage (switch node) | Vsw | -1 |  |  | V | Max printed as VIN +0.3 V | 4 |
| All Other Pins |  | -0.3 |  | 6 | V |  | 4 |
| Junction Temperature | TJ |  |  | 150 | °C |  | 4 |
| Storage Temperature | TS | -65 |  | 150 | ℃ |  | 4 |
| Supply Voltage | VIN | 4.5 |  | 23 | V |  | 5 |
| Operating Temperature (ambient) |  | -40 |  | 85 | ℃ | Ambient Temperature | 5 |
| Feedback Voltage | VFB | 0.9 | 0.923 | 0.946 | V | VIN=12V, VCOMP<2V | 5 |
| Oscillation Frequency | FOSC | 300 | 340 | 380 | KHz |  | 5 |
| Input Under Voltage Lockout Threshold | VUVLO | 3.8 | 4.1 | 4.4 | V | VIN Rising | 5 |
| EN Lockout Threshold | VENLO | 2.2 | 2.5 | 2.7 | V | VEN Rising | 5 |
| EN Threshold Voltage | VEN | 1 | 1.5 | 2 | V |  | 5 |

## CAD (KiCad official)

- Symbol: `FP6188XR-G1`
- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm`
- 3D model: SOP-8-EP (KiCad packages3D, STEP)
- 3D model files: `fp6188xr-g1-etched.step` / `fp6188xr-g1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `fp6188xr-g1.step` / `fp6188xr-g1.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Advanced Analog Technology datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881115914375168) (11 pp, sha256 `41732c35efc963d4`, retrieved 2026-10-18, 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/fp6188xr-g1-datasheet.pdf)