component
UCC2803QDRQ1
Public Made by Adomby adom
Texas Instruments AC-DC Controllers And Regulators, SOIC-8. Pinout cross-checked by two models against 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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README
markdownUCC2803QDRQ1
Texas Instruments · AC-DC Controllers And Regulators · SOIC-8
UCC2803QDRQ1 from Texas Instruments, 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 | COMP | output | Error amplifier output and PWM comparator input with 2MHz bandwidth and internal current limiting. |
| 2 | FB | input | Inverting input of error amplifier; maintain short lead length and minimal stray capacitance. |
| 3 | CS | input | Current sensing input with 100ns digital leading edge blanking after OUT rising edge. |
| 4 | RC | input | Oscillator timing pin; external RC network sets switching frequency and maximum duty cycle. |
| 5 | GND | power_in | Ground and power return reference for all device functions. |
| 6 | OUT | output | High current power driver output capable of ±750mA peak current; actively held low when VCC below threshold. |
| 7 | VCC | power_in | Power supply input requiring current limiting resistor; typical operating range 11V to 12V per UVLO thresholds. |
| 8 | REF | output | Voltage reference output (4V nominal for UCC2803-Q1) for error amplifier and internal functions; serves as logic power supply. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
UCC2803QDRQ1 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ucc2803qdrq1-etched.step/ucc2803qdrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucc2803qdrq1.step/ucc2803qdrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (47 pp, sha256
f3617bb600d56d65, retrieved 2026-10-03, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).