# XL9010

**XLSEMI** · DC-DC Converters · SOP-8-EP

XL9010 from XLSEMI, 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 | FB | input | Feedback input that senses the output voltage through an external resistor divider; the reference voltage is 1.25V. |
| 2 | EN | input | Enable pin that operates on a low level and shuts down on a high level; it is low when left floating. |
| 3 | VC | passive | Internal voltage regulator bypass pin; a 1uF capacitor must be connected between VIN and VC. |
| 4 | VIN | power_in | Power input supporting a wide 5V to 45V operating range; an electrolytic capacitor must be connected in parallel between VIN and GND to suppress noise. |
| 5 | SW | output | Power switch output pin and the switching node for the output power. |
| 6 | GND | power_in | Ground pin. |
| 7 | CSN | input | Negative input of the current-sense detection. |
| 8 | CSP | input | Positive input of the current-sense detection. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | XLSEMI |
| 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 |
|---|---|---|---|---|---|---|---|
| Feedback voltage | VFB | 1.225 | 1.25 | 1.275 | V | VIN=12V, VOUT=5.0V, IOUT=0.5A | 4 |
| Operating voltage | VIN | 5 |  | 45 | V |  | 4 |
| Shutdown current | IS |  | 35 | 100 | uA | VEN=2V | 4 |
| Quiescent current | IQ |  | 2.5 | 5 | mA | VFB=2V | 4 |
| Oscillation frequency | FOSC | 170 | 200 | 230 | KHz |  | 4 |
| Switch current limit | IL |  | 3 |  | A | VFB=0V | 4 |
| EN pin threshold voltage, high level (shutdown) | VEN_H |  | 1.4 |  | V |  | 4 |
| EN pin threshold voltage, low level (enable) | VEN_L |  | 0.8 |  | V |  | 4 |
| High-side on-resistance | RDS(ON)H |  | 68 |  | mΩ |  | 4 |
| Low-side on-resistance | RDS(ON)L |  | 50 |  | mΩ |  | 4 |
| Thermal shutdown temperature | TSD |  | 160 |  | ℃ |  | 4 |
| Thermal shutdown hysteresis | TD |  | 30 |  | ℃ |  | 4 |
| Maximum duty cycle | DMAX |  |  | 100 | % | VFB=0V | 4 |
| Input voltage | VIN | -0.3 |  | 50 | V |  | 3 |
| EN pin voltage | VEN | -0.3 |  | 7 | V |  | 3 |
| Feedback pin voltage | VFB | -0.3 |  | 7 | V |  | 3 |
| Switch output pin voltage | VSW | -0.3 |  |  | V |  | 3 |
| Internal regulator bypass pin voltage | VC | -0.3 |  |  | V |  | 3 |
| Current sense positive pin voltage | VCSP | -0.3 |  |  | V |  | 3 |
| Current sense negative pin voltage | VCSN | -0.3 |  |  | V |  | 3 |
| Thermal resistance, junction to ambient (SOP8-EP) | RJA |  | 60 |  | oC/W | Junction to ambient, no external heatsink | 3 |
| Operating junction temperature | TJ | -40 |  | 150 | oC |  | 3 |
| Storage temperature range | TSTG | -65 |  | 150 | oC |  | 3 |
| Lead temperature (soldering) | TLEAD |  |  | 260 | oC | Soldering, 10 s | 3 |
| ESD HBM rating | ESD (HBM) | 6000 |  |  | V | HBM; datasheet prints '>6000' | 3 |
| Output voltage range | VOUT | 1.25 |  | 40 | V |  | 1 |
| Ambient operating temperature range | TA | -40 |  | 125 | ℃ | Temperature grade 1 | 1 |

## CAD (KiCad official)

- Symbol: `XL9010`
- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm`
- 3D model: SOP-8-EP (KiCad packages3D, STEP)
- 3D model files: `xl9010-etched.step` / `xl9010-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `xl9010.step` / `xl9010.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [XLSEMI datasheet](docs/xl9010-datasheet.pdf) (14 pp, sha256 `9e803e98b8ab3a85`, retrieved 2026-10-19, tier: manufacturer)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/xl9010-datasheet.pdf)