component
XL9523
Public Made by Adomby adom
XLSEMI LED Drivers, SOP-8-EP. 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
markdownXL9523
XLSEMI · LED Drivers · SOP-8-EP
XL9523 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 | CS | input | Output current sense pin with a 0.23V CS reference voltage, so IOUT = 0.23/RCS. |
| 2 | EN | input | Enable pin, active low: low level runs the device, high level shuts it down, and a floating pin is read as low. |
| 3 | VC | passive | Bypass capacitor pin for the internal voltage regulator, requiring a 1uF capacitor connected between VIN and VC. |
| 4 | VIN | power_in | Power supply input supporting a 5V to 45V DC operating range, requiring an electrolytic capacitor between VIN and GND to suppress noise. |
| 5 | SW | power_out | Power switch output pin; the switching node of the output power stage (pins 5 and 6 are both SW). |
| 6 | SW | power_out | Power switch output pin; the switching node of the output power stage (pins 5 and 6 are both SW). |
| 7 | GND | power_in | Ground pin (pins 7 and 8 are both GND). |
| 8 | GND | power_in | Ground pin (pins 7 and 8 are both GND). |
| 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 | LED Drivers |
| 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 |
|---|---|---|---|---|---|---|---|
| CS voltage | VCS | 220.8 | 230 | 239.2 | mV | VIN=12V, VOUT=3.3V, IOUT=0.3A, TA=25°C | 4 |
| Operating voltage | VIN | 5 | 45 | V | TA=25°C, VIN=12V, VEN=0V | 4 | |
| Shutdown current | IS | 70 | 200 | uA | VEN=2V | 4 | |
| Quiescent current | IQ | 2.8 | 5 | mA | VCS=2V | 4 | |
| Oscillation frequency | FOSC | 127 | 150 | 172 | KHz | 4 | |
| Switch current limit | IL | 3.5 | A | VCS=0V | 4 | ||
| EN threshold high (shutdown) | VEN_H | 1.4 | V | 4 | |||
| EN threshold low (on) | VEN_L | 0.8 | V | 4 | |||
| EN shutdown delay time | TEN | 1 | mS | 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 | 20 | ℃ | 4 | |||
| Maximum duty cycle | DMAX | 90 | % | 4 | |||
| Efficiency | η | 92.1 | % | VIN=12V, VOUT=9.9V, IOUT=0.3A | 4 | ||
| Efficiency | η | 95 | % | VIN=24V, VOUT=16.5V, IOUT=0.9A | 4 | ||
| Input voltage | VIN | -0.3 | 50 | V | 3 | ||
| Enable pin voltage | VEN | -0.3 | 7 | V | 3 | ||
| Current sense pin voltage | VCS | -0.3 | 7 | V | 3 | ||
| Output switch pin voltage | VSW | -0.3 | V | -0.3 to VIN | 3 | ||
| VC pin voltage | VC | -0.3 | V | -0.3 to VIN | 3 | ||
| Operating junction temperature | TJ | -40 | 150 | oC | 3 | ||
| Storage temperature range | TSTG | -65 | 150 | oC | 3 | ||
| Lead temperature | TLEAD | 260 | oC | soldering 10 s | 3 | ||
| ESD (HBM) | ESD | 7000 | V | >7000 | 3 | ||
| Thermal resistance junction to ambient | RJA | 60 | oC/W | SOP8-EP, no external heatsink | 3 | ||
| Ambient operating temperature | TA | -40 | 125 | ℃ | Grade 1 | 1 | |
| Recommended operating voltage | VIN | 5 | 45 | V | 1 |
CAD (KiCad official)
- Symbol:
XL9523 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: SOP-8-EP (KiCad packages3D, STEP)
- 3D model files:
xl9523-etched.step/xl9523-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xl9523.step/xl9523.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: XLSEMI datasheet (15 pp, sha256
9a1682ddd52484ca, retrieved 2026-10-23, 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, primaryclaude-sonnet-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).