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XL33063

Public Made by Adom

by adom

XINLUDA DC-DC Converters, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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XL33063

XINLUDA · DC-DC Converters · SOIC-8

XL33063 from XINLUDA, in a SOIC-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 Switch Collector bidirectional High-current internal switch collector input; the output switch is rated for 1.5 A peak switch current.
2 Switch Emitter bidirectional High-current internal switch emitter output, which is tied to GND through the current-sense path in the step-down application.
3 Timing Capacitor passive Attach a timing capacitor to change the switching frequency (CT = 1.0 nF gives about 33 kHz at 25 C in the electrical characteristics).
4 GND power_in Ground reference for the device.
5 Comparator Inverting Input input Attach to a resistor divider network to create a feedback loop; the comparator threshold is 1.25 V typical.
6 VCC power_in Logic supply voltage, to be tied to VIN; the operating supply range is 3.0 V to 40 V.
7 IPK Sense input Current-limit sense input, with the current-limit sense voltage specified at 250 mV to 350 mV (300 mV typical).
8 Driver Collector bidirectional Darlington pair driving transistor collector input, with the driver collector current rated at 100 mA maximum.

Key specifications

Parameter Value
Manufacturer XINLUDA
Package SOIC-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
Frequency fosc 24 33 42 kHz VPin 5 = 0 V, CT = 1.0 nF, TA = 25C 5
Charge Current Ichg 24 35 42 µA VCC = 5.0 V to 40 V, TA = 25C 5
Discharge Current Idischg 140 220 260 µA VCC = 5.0 V to 40 V, TA = 25C 5
Discharge to Charge Current Ratio Idischg/Ichg 5.2 6.5 7.5 , Pin 7 to VCC, TA = 25C 5
Current Limit Sense Voltage Vipk(sense) 250 300 350 mV Ichg = Idischg, TA = 25C 5
Saturation Voltage, Darlington Connection VCE(sat) 1 1.3 V ISW = 1.0 A, Pins 1, 8 connected 5
Saturation Voltage (non-Darlington) VCE(sat) 0.45 0.7 V ISW = 1.0 A, RPin 8 = 82 Ω to VCC, Forced ß 20 5
DC Current Gain hFE 50 75 , ISW = 1.0 A, VCE = 5.0 V, TA = 25C 5
Collector Off-State Current IC(off) 0.01 100 µA VCE = 40 V 5
Threshold Voltage Vth 1.225 1.25 1.275 V TA = 25C 5
Threshold Voltage (over temperature) Vth 1.21 1.29 V TA = Tlow to Thigh 5
Threshold Voltage Line Regulation Regline 1.4 5 mV VCC = 3.0 V to 40 V 5
Input Bias Current IIB -20 -400 nA Vin = 0 V 5
Supply Current ICC 4 mA VCC = 5.0 V to 40 V, CT = 1.0 nF, Pin 7 = VCC, VPin 5 > Vth, Pin 2 = GND, remaining pins open 5
Power Supply Voltage VCC 40 Vdc 4
Comparator Input Voltage Range VIR -0.3 40 Vdc 4
Switch Collector Voltage VC(switch) 40 Vdc 4
Switch Emitter Voltage VE(switch) 40 Vdc VPin 1 = 40 V 4
Switch Collector to Emitter Voltage VCE(switch) 40 Vdc 4
Driver Collector Voltage VC(driver) 40 Vdc 4
Driver Collector Current IC(driver) 100 mA Note 1 4
Switch Current ISW 1.5 A 4
Power Dissipation, SOIC (D suffix) PD 625 mW TA = 25C 4
Operating Junction Temperature TJ 125 C 4
Operating Ambient Temperature Range (33063) TA -40 85 C 33063 part 4
Storage Temperature Range Tstg -45 125 C 4
Thermal Resistance, Junction-to-Ambient (SOIC, D suffix) RθJA 160 C/W SOIC Package, D Suffix 4
Operating Input Voltage (features list) 3 40 V Features list: operation from 3.0 V to 40 V input 1

CAD (KiCad official)

  • Symbol: XL33063
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: xl33063-etched.step / xl33063-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); xl33063.step / xl33063.glb are the bare package body.

Provenance

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

  • Datasheet: XINLUDA datasheet (12 pp, sha256 7b507128af616de9, retrieved 2026-10-19, tier: lcsc)
  • 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