component
XL1509A-5.0E1
Public Made by Adomby adom
XLSEMI(芯龙) DC-DC Converters, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownXL1509A-5.0E1
XLSEMI(芯龙) · DC-DC Converters · SOP-8
XL1509A-5.0E1 from XLSEMI(芯龙), 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 | Power input pin supporting a DC 4.5V to 50V operating range; an electrolytic capacitor must be connected in parallel between VIN and GND to suppress noise. |
| 2 | SW | output | Power switch output pin; SW is the switching node that delivers the output power. |
| 3 | FB | input | Feedback pin that senses the output voltage through an external resistor divider to regulate it; the reference voltage is 1.23V for the adjustable version. |
| 4 | EN | input | Enable pin, active low: a high level shuts the device down and the pin is low when left floating (EN high threshold 1.4V, low threshold 0.8V). |
| 5 | GND | power_in | Ground pin; pins 5 through 8 are all GND and are grouped as '5~8 GND' in the pin description table. |
| 6 | GND | power_in | Ground pin; pins 5 through 8 are all GND and are grouped as '5~8 GND' in the pin description table. |
| 7 | GND | power_in | Ground pin; pins 5 through 8 are all GND and are grouped as '5~8 GND' in the pin description table. |
| 8 | GND | power_in | Ground pin; pins 5 through 8 are all GND and are grouped as '5~8 GND' in the pin description table. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | XLSEMI(芯龙) |
| Package | SOP-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 |
|---|---|---|---|---|---|---|---|
| Output voltage (5.0 V version) | VOUT | 4.925 | 5 | 5.075 | V | TA=25°C; VIN=12V; IOUT=0.5A | 4 |
| Operating input voltage | VIN | 4.5 | 50 | V | 5 | ||
| Shutdown current | IS | 46 | 100 | uA | VEN=2V | 5 | |
| Quiescent current | IQ | 1.3 | 2 | mA | Note 2: VFB=10V (ADJ, 3.3V, 5.0V versions) | 5 | |
| Oscillator frequency | FOSC | 135 | 150 | 165 | KHz | 5 | |
| Absolute maximum input voltage | VIN | -0.3 | 60 | V | 3 | ||
| Absolute maximum feedback pin voltage | VFB | -0.3 | 20 | V | 3 | ||
| Absolute maximum enable pin voltage | VEN | -0.3 | 7 | V | 3 | ||
| Absolute maximum switch output voltage (lower bound) | VSW | -0.3 | V | Upper limit printed as VIN | 3 | ||
| Thermal resistance, junction to ambient (SOP8) | RJA | 100 | oC/W | Junction to ambient, no external heatsink | 3 | ||
| Operating junction temperature | TJ | -40 | 150 | oC | 3 | ||
| Storage temperature | TSTG | -65 | 150 | oC | 3 | ||
| Lead temperature (soldering) | TLEAD | 260 | oC | Soldering 10 s | 3 | ||
| ESD HBM rating | ESD (HBM) | 8000 | V | HBM; printed as >8000 | 3 | ||
| Ambient operating temperature range | -40 | 125 | oC | Temperature grade 1, ambient | 1 |
CAD (KiCad official)
- Symbol:
XL1509A-5.0E1 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
xl1509a-5-0e1-etched.step/xl1509a-5-0e1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xl1509a-5-0e1.step/xl1509a-5-0e1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: XLSEMI(芯龙) datasheet (17 pp, sha256
a4865b1dcf3ac763, retrieved 2026-10-17, tier: lcsc) - 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, primaryclaude-haiku-5-5(text), consensusclaude-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).