component
XL1583E1
Public Made by Adomby adom
XLSEMI DC-DC Converters, SOIC-8. Pinout extracted from 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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Contents
README
markdownXL1583E1
XLSEMI · DC-DC Converters · SOIC-8
XL1583E1 from XLSEMI, in a SOIC-8. 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 | NC | unconnected | No connect. Not internally bonded; leave floating or tie to ground for mechanical stability. |
| 2 | VIN | power_in | Supply voltage input. Operates from 3.6V to 28V DC (absolute max 32V). Bypass to GND with a suitably large low-ESR capacitor (typ. 220uF/35V) placed close to the pin to eliminate input noise. |
| 3 | SW | output | Power switch output node. Internal high-side MOSFET (~43mOhm) switches this pin between VIN and GND at 380 kHz; connects to the external inductor and catch Schottky diode of the buck converter. Current limit is typically 4.7A. |
| 4 | GND | power_in | Ground reference for the IC. Route outside the Schottky diode-to-output-capacitor ground path to prevent switching current spikes from injecting noise into the device. |
| 5 | FB | input | Feedback input. Compares the divided output voltage against the internal 1.222V reference to regulate VOUT via an external resistor divider: VOUT = 1.222 * (1 + R2/R1). |
| 6 | NC | unconnected | No connect. Not internally bonded; leave floating or tie to ground for mechanical stability. |
| 7 | EN | input | Enable input with hysteresis. Drive high (>=1.4V typ.) to turn the regulator on; drive low (<=0.8V typ.) to shut down (Is ~60uA). Floating defaults high. Absolute max VEN = VIN. |
| 8 | NC | unconnected | No connect. Not internally bonded; leave floating or tie to ground for mechanical stability. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | XLSEMI |
| Package | SOIC-8 |
| Category | PMIC |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
XL1583E1
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 | 1.186 | 1.222 | 1.258 | V | Vin = 7V to 28V, Vout=5V, Iload=0.2A to 3A | 5 |
| Input operation voltage | Vin | 3.6 | 28 | V | 5 | ||
| Oscillator Frequency | Fosc | 323 | 380 | 437 | Khz | 5 | |
| EN Pin Threshold, High (Regulator ON) | VEN | 1.4 | V | High (Regulator ON) | 5 | ||
| EN Pin Threshold, Low (Regulator OFF) | VEN | 0.8 | V | Low (Regulator OFF) | 5 | ||
| Shutdown Supply Current | IS | 60 | 200 | uA | VEN=0V | 5 | |
| Quiescent Supply Current | Iq | 3 | 5 | mA | VEN =2V, VFB =Vin | 5 | |
| Switch Current Limit | IL | 4.7 | A | VFB =0V | 5 | ||
| EN Pin Input Leakage Current (ON) | IH | 1 | 15 | uA | VEN =2V (ON) | 5 | |
| EN Pin Input Leakage Current (OFF) | IL | 1 | 15 | uA | VEN =0V (OFF) | 5 | |
| Max. Duty Cycle | DMAX | 100 | % | VFB=0V | 5 | ||
| Input Voltage (absolute maximum range) | Vin | -0.3 | 32 | V | 4 | ||
| Feedback Pin Voltage (upper limit Vin) | VFB | -0.3 | V | 4 | |||
| EN Pin Voltage (upper limit Vin) | VEN | -0.3 | V | 4 | |||
| Output Switch Pin Voltage (upper limit Vin) | VSW | -0.3 | V | 4 | |||
| Thermal Resistance (SOP8), Junction to Ambient, No Heatsink, Free Air | RJA | 100 | ℃/W | Junction to Ambient, No Heatsink, Free Air | 4 | ||
| Operating Junction Temperature | TJ | -40 | 125 | ℃ | 4 | ||
| Storage Temperature | TSTG | -65 | 150 | ℃ | 4 | ||
| Lead Temperature (Soldering) | TLEAD | 260 | ℃ | Soldering, 10 sec | 4 | ||
| ESD (HBM) | 2000 | V | HBM | 4 |
CAD (KiCad official)
- Symbol:
XL1583E1 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
xl1583e1-etched.step/xl1583e1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xl1583e1.step/xl1583e1.glbare the bare package body.
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
xl1583e1.step |
122 KB | You want the bare part, or you mark your own boards. |
xl1583e1-etched.step |
1.7 MB | You want the part with XL1583E1 already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 427 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: XLSEMI datasheet (10 pp, sha256
3c15efb52e39a748, 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).