# FP6151XR-G1

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

FP6151XR-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 | SW | output | Switch node output of the internal power MOSFET; the boost capacitor is connected between SW and BS, and absolute maximum Vsw is VIN +0.3V. |
| 2 | EN | input | Enable/UVLO input; driving it to ground shuts the device down, EN input high is 1.5V minimum and low is 0.4V maximum, and UVLO rising threshold is 3.9V to 4.5V. |
| 3 | COMP | output | Error amplifier output for compensation; the compensation network connected here sets the control loop response. |
| 4 | FB | input | Feedback input connected to the resistive divider from the output; the feedback voltage is 0.808V typical (0.788V to 0.828V), and it is a sensitive node to keep away from SW. |
| 5 | GND | power_in | Ground return for the device. |
| 6 | RT | input | Resistor connection that sets the oscillator frequency; RT = 200kΩ gives 400kHz to 600kHz switching frequency. |
| 7 | VIN | power_in | Supply voltage input with a recommended range of 4.5V to 36V (absolute maximum -0.3V to 42V). |
| 8 | BS | output | Bootstrap output that drives the high-side gate through a capacitor connected between BS and SW; absolute maximum VBS is Vsw +6V. |
| 9 | EP | power_in | Exposed pad on the package bottom that must be connected to ground. |

## 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 |  | 42 | V |  | 4 |
| Supply Voltage | Vsw | -0.3 |  |  | V | Maximum printed as VIN +0.3 V (relative to VIN, not numeric) | 4 |
| Bootstrap Voltage | VBS | -0.3 |  | 6 | V | Relative to Vsw: printed as Vsw -0.3 (min) and Vsw +6 (max) | 4 |
| All Other Pins |  | -0.3 |  | 6 | V |  | 4 |
| Junction Temperature | TJ |  |  | 150 | °C |  | 4 |
| Storage Temperature | TS | -65 |  | 150 | ℃ |  | 4 |
| Operating Temperature |  | -40 |  | 85 | ℃ |  | 4 |
| Lead Temperature (soldering, 10 sec) |  |  |  | 260 | ℃ | Soldering, 10 sec | 4 |
| Supply Voltage | VIN | 4.5 |  | 36 | V |  | 5 |
| Operating Temperature (Ambient Temperature) |  | -40 |  | 85 | °C | Ambient temperature | 5 |
| Standby Current | ISB |  | 0.6 | 1 | mA | VEN=2V, VFB=1.0V | 5 |
| Shutdown Supply Current | IST |  | 10 | 20 | µA | VEN=0 | 5 |
| Feedback Voltage | VFB | 0.788 | 0.808 | 0.828 | V | 9V<VIN<40V | 5 |
| Feedback Current | IFB |  |  | 1 | nA | VFB=0.8V | 5 |
| Switch ON Resistance | RON |  | 65 | 130 | mΩ |  | 5 |
| Switch Leakage Current | IIL |  | 0 | 10 | µA | VEN=0, VSW=0V | 5 |
| Current Limit | ICL | 7.5 |  | 9 | A | Duty=50% | 5 |
| Switching Frequency | fOSC | 400 | 500 | 600 | KHz | VFB=0.6V; RT=200k | 5 |
| Foldback Switching Frequency | fSC | 50 | 125 | 175 | KHz | VFB=0V | 5 |
| Under Voltage Lockout Threshold | VUVLO | 3.9 | 4.2 | 4.5 | V | VEN Rising | 5 |
| Error Amplifier Transconductance | GEA |  | 68 |  | μA / V | Icomp=±3uA | 5 |
| Current Sensing Transconductance | Gcs |  | 9 |  | A / V |  | 5 |
| Minimum On Time | TON |  | 100 |  | ns |  | 5 |
| Minimum Off Time | TOFF |  | 200 |  | ns |  | 5 |
| Under Voltage Lockout Threshold Hysteresis | VHYS |  | 800 |  | mV |  | 5 |
| EN Input Low Voltage |  |  | 0.4 |  | V |  | 5 |
| EN Input High Voltage |  |  | 1.5 |  | V |  | 5 |
| EN Internal Pull Up Current | IEN |  | -5 |  | µA | VEN=2V | 5 |
| Thermal Shutdown | TTS |  | 150 |  | °C |  | 5 |
| Thermal Resistance Junction-to-Ambient (SOP-8L(EP)) | θJA |  | 60 |  | ℃ / W | SOP-8L(EP) | 4 |
| Thermal Resistance Junction-to-Case (SOP-8L(EP)) | θJC |  | 10 |  | ℃ / W | SOP-8L(EP) | 4 |

## CAD (KiCad official)

- Symbol: `FP6151XR-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: `fp6151xr-g1-etched.step` / `fp6151xr-g1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `fp6151xr-g1.step` / `fp6151xr-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/8588881114698027008) (12 pp, sha256 `2bd9f0ba8bd9361f`, retrieved 2026-10-09, 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/fp6151xr-g1-datasheet.pdf)