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Contents

README

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XL6019E1

XLSEMI · DC-DC Converters · TO-263-5

XL6019E1 from XLSEMI, in a TO-263-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground pin. Common return for input, output and internal circuitry.
2 EN input Enable pin. TTL-compatible: logic low shuts the converter down, logic high enables operation. Threshold typ. 1.4V (high) / 0.8V (low). Floating is treated as high. VEN range -0.3V to VIN.
3 SW output Power switch output. Drain of the internal N-channel power MOSFET; connect to the inductor/diode boost node. Absolute max VSW = 60V, internal SW overvoltage clamp typ. 60V. Also brought out on the metal tab.
4 VIN power_in Power supply input, 5V to 40V DC. Requires a bulk electrolytic capacitor between VIN and GND to suppress noise. Absolute max 45V.
5 FB input Output-voltage feedback sense pin. Internal reference is 1.25V; set VOUT with a resistor divider using VOUT = 1.25 × (1 + R2/R1).

Key specifications

Parameter Value
Manufacturer XLSEMI
Package TO-263-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • XL6019E1

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 1.213 1.25 1.287 V Vin =12V到20V,Vout=24V; Iload=0.1A 到 1A 5
Input voltage Vin 5 40 V 5
Shutdown current IS 70 100 uA VEN=0V 5
Quiescent supply current Iq 2.5 5 mA VEN=2V, VFB=Vin 5
Oscillator frequency Fosc 144 180 253 KHz 5
SW overvoltage protection VSW 60 V VFB=0V 5
Switch current limit IL 5 A VFB=0V 5
MOS on-resistance Rdson 110 120 mohm Vin=12V, ISW=5A 5
EN pin threshold voltage, high (on) VEN 1.4 V 高(开) 5
EN pin threshold voltage, low (off) VEN 0.8 V 低(关) 5
EN pin input leakage current, high IH 3 10 uA VEN =2V (开) 5
EN pin input leakage current, low IL 3 10 uA VEN =0V (关) 5
Maximum duty cycle DMAX 90 % VFB=0V 5
Input voltage (absolute maximum) Vin -0.3 45 V 4
Feedback pin voltage (absolute maximum) VFB -0.3 V Upper limit printed as Vin 4
EN pin voltage (absolute maximum) VEN -0.3 V Upper limit printed as Vin 4
Output switch pin voltage (absolute maximum) VSW -0.3 60 V 4
Maximum junction temperature TJ -40 150 oC 4
Operating junction temperature TJ -40 125 oC 4
Storage temperature range TSTG -65 150 oC 4
Lead temperature (soldering, 10 s) TLEAD 260 oC 焊接10秒 4
ESD rating (human body model) ESD 2000 V 人体模型 (HBM); printed as >2000 4
Thermal resistance, junction to ambient (TO263-5L) RJA 30 oC/W 结到环境,无外部散热片 4

CAD (KiCad official)

  • Symbol: XL6019E1
  • Footprint: Package_TO_SOT_SMD:TO-263-5_TabPin6
  • 3D model: TO-263-5 (KiCad packages3D, STEP)
  • 3D model files: xl6019e1-etched.step / xl6019e1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); xl6019e1.step / xl6019e1.glb are the bare package body.

Provenance

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

  • Datasheet: XLSEMI datasheet (14 pp, sha256 a08dcab1375258c6, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF