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XL9523

Public Made by Adom

by adom

XLSEMI LED Drivers, SOP-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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XL9523

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); xl9523.step / xl9523.glb are 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, primary claude-sonnet-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