component
RT8575GQW
Public Made by Adomby adom
Richtek Tech LED Drivers, DFN-16-EP(5x5). Datasheet-verified pinout, 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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README
markdownRT8575GQW
Richtek Tech · LED Drivers · DFN-16-EP(5x5)
RT8575GQW from Richtek Tech, in a DFN-16-EP(5x5). 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 | CH1 | input | Current sink for LED string 1. Connect to bottom cathode of LED string. Absolute max 66V. Connect to GND if channel is unused (auto-disabled during startup). |
| 2 | CH2 | input | Current sink for LED string 2. Connect to bottom cathode of LED string. Absolute max 66V. Connect to GND if channel is unused. |
| 3 | CH3 | input | Current sink for LED string 3. Connect to bottom cathode of LED string. Absolute max 66V. Connect to GND if channel is unused. |
| 4 | CH4 | input | Current sink for LED string 4. Connect to bottom cathode of LED string. Absolute max 66V. Connect to GND if channel is unused. |
| 5 | AGND | power_in | Analog ground. Return for internal analog reference and control circuitry. |
| 6 | ISET | input | LED current setting. Connect resistor RISET from ISET to GND to program per-channel LED current (50-150mA). VISET is typically 1V. Do not short to GND. |
| 7 | COMP | passive | Error amplifier compensation node for the boost loop. Connect an R-C compensation network to ground. |
| 8 | RT | input | Switching frequency selection input. Resistor from RT to GND sets the boost switching frequency, adjustable 150kHz to 500kHz. |
| 9 | PWM | input | PWM dimming control input. Accepts input dimming frequency 120Hz to 1kHz for LED brightness modulation without inrush current. |
| 10 | EN | input | Chip enable, active high. High-impedance input; add a 100kΩ pull-down to GND when the control signal source can float. Absolute max 44V. |
| 11 | VIN | power_in | Power supply input. Operating range 4.2V to 24V; absolute max 44V. Bypass with local CIN capacitors to PGND. |
| 12 | LX | power_out | Switching node of the internal 60V, 150mΩ boost power switch. Connect to boost inductor and Schottky rectifier. Absolute max 66V. Tie in parallel with pin 13. |
| 13 | LX | power_out | Switching node of the internal boost power switch (paralleled with pin 12). Connect to boost inductor and Schottky rectifier. |
| 14 | PGND | power_in | Power ground of the boost converter. Tie together with pins 15 and 17 (exposed pad) to a large PCB copper area for maximum power dissipation. |
| 15 | PGND | power_in | Power ground of the boost converter. Tie together with pins 14 and 17 (exposed pad). |
| 16 | OVP | input | Over-voltage protection sense input for the boost converter. Detection threshold is typically 1.2V; set via resistor divider from VOUT. |
| 17 | PGND | power_in | Exposed thermal pad. Power ground of the boost converter. Must be soldered to a large PCB copper area and tied to PGND (pins 14/15) for thermal and electrical performance. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Richtek Tech |
| Package | DFN-16-EP(5x5) |
| Category | LED Drivers |
| Pins | 17 |
Ordering variants
Same part, different packaging or reel option.
RT8575GQWRT8575GQWGN
CAD (KiCad official)
- Symbol:
RT8575GQW - Footprint:
Package_DFN_QFN:DFN-16-1EP_5x5mm_P0.5mm_EP3.46x4mm - 3D model: DFN-16-EP(5x5) (KiCad packages3D, STEP)
- 3D model files:
rt8575gqw-etched.step/rt8575gqw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rt8575gqw.step/rt8575gqw.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Richtek Tech datasheet (None pp, sha256
9d811c6a0ca1bf5d, retrieved 2026-08-17, tier: lcsc) - 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).