component
XL2596S-5.0E1
Public Made by Adomby adom
XLSEMI DC-DC Converters, TO-263-5. 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
markdownXL2596S-5.0E1
XLSEMI · DC-DC Converters · TO-263-5
XL2596S-5.0E1 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 | VIN | power_in | Supply voltage input. Operates from 4.5V to 40V DC. Bypass to GND with a suitably large capacitor (e.g. 470uF/35V in the typical app) to eliminate noise on the input. Absolute maximum -0.3 to 45V. |
| 2 | OUTPUT | output | Power switch output (SW). Internal NPN power transistor emitter/switch node that drives the external inductor and catch (Schottky) diode. Rated for 3A continuous load current with duty cycle up to 100%. |
| 3 | GND | power_in | Ground pin. Layout critical: route outside of the Schottky diode-to-output-capacitor ground path to prevent switching current spikes from injecting voltage noise into the XL2596. Metal tab is also tied to GND. |
| 4 | FEEDBACK | input | Feedback pin (FB). Senses the output voltage through an external resistor divider and regulates it to the internal 1.23V reference. For the fixed-5.0V version this pin is tied directly to VOUT (no divider needed). |
| 5 | ON/OFF | input | Enable pin with hysteresis. Drive LOW (or float, default low) to turn the device ON; drive HIGH to shut it down (TTL shutdown capable). Absolute max -0.3V to VIN. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | XLSEMI |
| Package | TO-263-5 |
| Category | PMIC |
| Pins | 5 |
Ordering variants
Same part, different packaging or reel option.
XL2596S-5.0E1XL2596S-5.0E1S-3.3E1XL2596S-5.0E1S-ADJE1XL2596S-5.0E1S-12E1XL2596S-5.0E1T-5.0E1XL2596S-5.0E1T-3.3E1XL2596S-5.0E1T-ADJE1XL2596S-5.0E1T-12E1
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Output Voltage (XL2596-5.0) | VOUT | 4.8 | 5 | 5.2 | V | Ta=25℃; Vin = 7V to 40V; Iload=0.2A to 3A | 6 |
| Input operation voltage | Vin | 4.5 | 40 | V | 7 | ||
| Shutdown Supply Current | ISTBY | 80 | 200 | uA | VON/OFF=5V | 7 | |
| Quiescent Supply Current | Iq | 2 | 10 | mA | VON/OFF =0V, VFB =Vin | 7 | |
| Oscillator Frequency | Fosc | 127 | 150 | 173 | Khz | 7 | |
| Switch Current Limit | IL | 3.6 | 4.8 | 6.9 | A | VFB =0 | 7 |
| ON IH (/OFF Pin Input Current) | IH | 5 | 15 | uA | VON/OFF =2.5V (OFF) | 7 | |
| /OFF Pin Input Leakage Current | IL | 0.2 | 5 | uA | VON/OFF =0.5V (ON) | 7 | |
| Output Saturation Voltage | VCE | 1.3 | 1.5 | V | VFB=0V, Iout=3A | 7 | |
| Input Voltage (absolute maximum) | Vin | -0.3 | 45 | V | 5 | ||
| Feedback Pin Voltage | VFB | -0.3 | V | Maximum listed as Vin (not numeric) | 5 | ||
| ON/OFF Pin Voltage | VON/OFF | -0.3 | V | Maximum listed as Vin (not numeric) | 5 | ||
| Output Switch Pin Voltage | VOutput | -0.3 | V | Maximum listed as Vin (not numeric) | 5 | ||
| Operating Junction Temperature | TJ | -40 | 125 | ºC | 5 | ||
| Storage Temperature | TSTG | -65 | 150 | ºC | 5 | ||
| Lead Temperature | TLEAD | 260 | ºC | Soldering, 10 sec | 5 | ||
| ESD (HBM) | 2000 | V | HBM | 5 | |||
| Thermal Resistance Junction to Ambient (TO220 & TO263) | RJA | 30 | ºC/W | Junction to Ambient, No Heatsink, Free Air | 5 |
CAD (KiCad official)
- Symbol:
XL2596S-5.0E1 - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
xl2596s-5-0e1-etched.step/xl2596s-5-0e1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xl2596s-5-0e1.step/xl2596s-5-0e1.glbare the bare package body.
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
xl2596s-5-0e1.step |
180 KB | You want the bare part, or you mark your own boards. |
xl2596s-5-0e1-etched.step |
2.4 MB | You want the part with XL2596S-5.0E1 already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 617 faces against 135 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 (14 pp, sha256
c2a385c60d33d0a3, 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).