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Contents

README

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XL9023

XLSEMI · DC-DC Converters · TO-252-5L

XL9023 from XLSEMI, in a TO-252-5L. 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 GND power_in Ground pin of the device.
2 FB input Feedback pin that senses the output voltage through an external resistor divider, with a reference voltage of 1.25 V.
3 SW output Power switch output pin and switching node that carries the output power.
4 VC power_out Internal voltage regulator bypass pin that requires a 1 uF capacitor connected between VIN and VC.
5 VIN power_in Power input pin supporting a wide 5 V to 40 V operating range, with an electrolytic capacitor to be connected in parallel between VIN and GND to suppress noise.
6 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer XLSEMI
Package TO-252-5L
Category Power Management (PMIC)
Pins 6

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 40 V 4
Quiescent current IQ 2.3 5 mA VFB =2V 4
Oscillation frequency FOSC 96 120 144 KHz 4
Switch current limit IL 4.2 A VFB =0V 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 170 ℃ 4
Thermal shutdown hysteresis TD 50 ℃ 4
Maximum duty cycle DMAX 100 % 4
Input voltage (absolute maximum) VIN -0.3 45 V 3
VC pin voltage (upper limit printed as VIN) VC -0.3 V 3
Feedback pin voltage VFB -0.3 7 V 3
Output switch pin voltage (upper limit printed as VIN) VSW -0.3 V 3
Operating junction temperature TJ -40 150 oC 3
Storage temperature range TSTG -65 150 oC 3
Lead temperature (soldering) TLEAD 260 oC 焊接10秒 3
ESD (HBM) 4000 V HBM; printed as >4000 3
Thermal resistance, junction to ambient (TO252-5L) RJA 50 oC /W 结到环境,无外部散热片 3
Ambient operating temperature (grade 1) TA -40 125 ℃ 1
Output voltage range VOUT 1.25 35 V 1

CAD (KiCad official)

  • Symbol: XL9023
  • Footprint: Package_TO_SOT_SMD:TO-252-5_TabPin6
  • 3D model: TO-252-5L (KiCad packages3D, STEP)
  • 3D model files: xl9023-etched.step / xl9023-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); xl9023.step / xl9023.glb are the bare package body.

Provenance

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

  • Datasheet: XLSEMI datasheet (14 pp, sha256 d9145ef8f8159056, retrieved 2026-10-19, 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, 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