component
FAN5333ASX
Public Made by Adomby adom
onsemi LED Drivers, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.md+78docs/fan5333asx-datasheet.pdf+3573docs/hero.pngfan5333asx-etched.glbfan5333asx-hero.glbfan5333asx-hero.overlay.json+194fan5333asx.glbfan5333asx.kicad_mod+189fan5333asx.kicad_sym+33fan5333asx.lbr+122fan5333asx.step+2118package.json+178page.json+184viewers/footprint.html+1viewers/symbol.html+1README.mdadded+78@@ -0,0 +1,78 @@+# FAN5333ASX++**onsemi** · LED Drivers · SOT-23-5++FAN5333ASX from onsemi, in a SOT-23-5. 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 | SW | passive | Switching node connected to the internal N-channel switch; the datasheet gives an SW to GND absolute maximum range of −0.3 V to 35 V. |+| 2 | GND | power_in | Analog and power ground; the datasheet recommends a PCB ground plane connected to this pin as an EMI shield. |+| 3 | FB | input | Feedback pin that connects to the external current-set resistor divider; for the FAN5333A (this MPN) the feedback voltage is 110 mV typical (99 mV to 121 mV), and FB to GND is limited to −0.3 V to VIN + 0.3 V. |+| 4 | SHDN | input | Shutdown control where logic HIGH enables and logic LOW disables the device, with a device-on threshold of 1.5 V and device-off threshold of 0.5 V; SHDN to GND is limited to −0.3 V to VIN + 0.3 V. |+| 5 | VIN | power_in | Input voltage pin with a recommended operating range of 1.8 V to 5.5 V and an absolute maximum VIN to GND of 6.0 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | SOT-23-5 |+| Category | LED Drivers |+| Pins | 5 |++## 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 (FAN5333A, 110 mV variant) | VFB | 99 | 110 | 121 | mV | | 3 |+| Switch Current Limit | ILIM | 1.1 | 1.5 | | A | VIN = 3.2 V | 3 |+| Switching Frequency | fSW | 1.2 | 1.5 | 1.8 | MHz | | 3 |+| Maximum Duty Cycle | DMAX | 87 | 93 | | % | | 3 |+| Shutdown Threshold, Device ON | VSHDN | 1.5 | | | V | Device ON | 3 |+| Shutdown Threshold, Device OFF | VSHDN | | | 0.5 | V | Device OFF | 3 |+| OFF Mode Current | IOFF | | 0.1 | 3 | µA | VSHDN = 0 V | 3 |+| Shutdown Pin Bias Current | ISHDN | | 1 | 300 | nA | VSHDN = 0 V or VSHDN = 5.5 V | 3 |+| Feedback Pin Bias Current | IFB | | 1 | 300 | nA | | 3 |+| Load Current Capability | ILOAD | | 65 | | mA | VOUT ≤ 20 V, VIN = 3.2 V | 3 |+| Switch On-resistance | RDS(ON) | | 0.6 | | | VIN = 5 V | 3 |+| Switch On-resistance | RDS(ON) | | 0.7 | | | VIN = 3.6 V | 3 |+| Quiescent Current | IQ | | 0.6 | | mA | VSHDN = 3.6 V, No Switching | 3 |+| Feedback Voltage Line Regulation | | | 0.3 | | % | 2.7 V < VIN < 5.5 V, VOUT ≤ 20 V | 3 |+| Switch Leakage Current | | | 1 | | µA | No Switching, VIN = 5.5 V | 3 |+| OVP (over-voltage protection threshold above nominal) | | | 15 | | % | | 3 |+| Thermal Shutdown Temperature | | | 150 | | °C | | 3 |+| Input Voltage | VIN | 1.8 | | 5.5 | V | | 3 |+| Output Voltage | VOUT | | | 30 | V | | 3 |+| Operating Ambient Temperature | TA | -40 | 25 | 85 | °C | | 3 |+| Output Capacitance (rated at required output) | COUT | 0.47 | | | µF | For maximum load current | 3 |+| VIN to GND | VIN | | | 6 | V | | 3 |+| FB, SHDN to GND | | -0.3 | | | V | Maximum printed as VIN + 0.3 V | 3 |+| SW to GND | | -0.3 | | 35 | V | | 3 |+| Lead Soldering Temperature | | | | 300 | °C | 10 seconds | 3 |+| Junction Temperature | TJ | | | 150 | °C | | 3 |+| Storage Temperature | TSTG | -55 | | 150 | °C | | 3 |+| Thermal Resistance (junction to ambient) | RθJA | | 210 | | °C/W | | 3 |+| Electrostatic Discharge Protection, HBM | ESD | | 2 | | kV | HBM, EIA/JESD22-A114B | 3 |+| Electrostatic Discharge Protection, CDM | ESD | | 1 | | kV | CDM, EIA/JESD22-C101-A | 3 |++## CAD (KiCad official)++- Symbol: `FAN5333ASX`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: SOT-23-5 (KiCad packages3D, STEP)+- 3D model files: `fan5333asx-etched.step` / `fan5333asx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `fan5333asx.step` / `fan5333asx.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589977327133224961) (10 pp, sha256 `48c0d98df2bf045f`, retrieved 2026-10-20, 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](docs/fan5333asx-datasheet.pdf)
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Normal or shutdown mode can be selected by a logic level shutdown circuitry.)+/Title (FAN5333B - High Efficiency, High Current Serial LED Driver with 30 V Integrated Switch)+>>+endobj+2 0 obj+<<+/Type /Pages+/Kids [6 0 R 7 0 R 8 0 R 9 0 R 10 0 R 11 0 R 12 0 R 13 0 R 14 0 R 15 0 R]+/Count 10+>>+endobj+3 0 obj+<<+/Nums [0 16 0 R 8 17 0 R 9 18 0 R]+>>+endobj+4 0 obj+<<+/Length 4263+/Subtype /XML+/Type /Metadata+>>+stream +<?xpacket begin="" id="W5M0MpCehiHzreSzNTczkc9d"?>+<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 7.1-c000 79.425dc87, 2021/10/27-16:20:32 ">+ <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">+ <rdf:Description rdf:about=""+ xmlns:dc="http://purl.org/dc/elements/1.1/"+ xmlns:xmp="http://ns.adobe.com/xap/1.0/"+ xmlns:pdf="http://ns.adobe.com/pdf/1.3/"+ xmlns:xmpMM="http://ns.adobe.com/xap/1.0/mm/">+ <dc:format>application/pdf</dc:format>+ <dc:title>+ <rdf:Alt>+ <rdf:li xml:lang="x-default">FAN5333B - High Efficiency, High Current Serial LED Driver with 30 V Integrated Switch</rdf:li>+ </rdf:Alt>+ </dc:title>+ <dc:creator>+ <rdf:Seq>+ <rdf:li>onsemi</rdf:li>+ </rdf:Seq>+ </dc:creator>+ <dc:description>+ <rdf:Alt>+ <rdf:li xml:lang="x-default">The FAN5333A/FAN5333B is a general purpose LED driver that features fixed frequency mode operation and an integrated FET switch. 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