component
UCC2805QDRQ1
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.
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UCC2805QDRQ1
Texas Instruments · AC-DC Controllers And Regulators · SOIC-8
UCC2805QDRQ1 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 peak-to-peak current capability and full-cycle soft-start voltage clamping. |
| 2 | FB | input | Non-inverting input of 2MHz error amplifier; keep lead traces short and minimize stray capacitance for stability. |
| 3 | CS | input | Current sense comparator input with 100ns leading-edge blanking after OUT rising edge and over-current detection at 1.5V threshold. |
| 4 | RC | input | Oscillator timing pin for switching frequency programming via external resistor (10kΩ to 200kΩ recommended) from REF and capacitor (100pF to 1000pF) to GND. |
| 5 | GND | power_in | Ground reference for all device functions including signal and power return paths. |
| 6 | OUT | output | Totem-pole gate driver output with ±750mA peak current (±1A absolute maximum) for MOSFET gate drive; actively held low when VCC below threshold. |
| 7 | VCC | power_in | Power supply input pin; supply through series current-limiting resistor and bypass with 1µF plus 0.1µF ceramic capacitors placed close to device pins. |
| 8 | REF | power_out | 4V voltage reference output for error amplifier and internal bias circuits; serves as logic power for high-speed switching circuits and pulls low through 5kΩ resistor during UVLO. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
UCC2805QDRQ1 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ucc2805qdrq1-etched.step/ucc2805qdrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucc2805qdrq1.step/ucc2805qdrq1.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 2026-10-01, 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).
# UCC2805QDRQ1
**Texas Instruments** · AC-DC Controllers And Regulators · SOIC-8
UCC2805QDRQ1 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 peak-to-peak current capability and full-cycle soft-start voltage clamping. |
| 2 | FB | input | Non-inverting input of 2MHz error amplifier; keep lead traces short and minimize stray capacitance for stability. |
| 3 | CS | input | Current sense comparator input with 100ns leading-edge blanking after OUT rising edge and over-current detection at 1.5V threshold. |
| 4 | RC | input | Oscillator timing pin for switching frequency programming via external resistor (10kΩ to 200kΩ recommended) from REF and capacitor (100pF to 1000pF) to GND. |
| 5 | GND | power_in | Ground reference for all device functions including signal and power return paths. |
| 6 | OUT | output | Totem-pole gate driver output with ±750mA peak current (±1A absolute maximum) for MOSFET gate drive; actively held low when VCC below threshold. |
| 7 | VCC | power_in | Power supply input pin; supply through series current-limiting resistor and bypass with 1µF plus 0.1µF ceramic capacitors placed close to device pins. |
| 8 | REF | power_out | 4V voltage reference output for error amplifier and internal bias circuits; serves as logic power for high-speed switching circuits and pulls low through 5kΩ resistor during UVLO. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
## CAD (KiCad official)
- Symbol: `UCC2805QDRQ1`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `ucc2805qdrq1-etched.step` / `ucc2805qdrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ucc2805qdrq1.step` / `ucc2805qdrq1.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/ucc2803-q1) (47 pp, sha256 `f3617bb600d56d65`, retrieved 2026-10-01, 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`, primary `claude-haiku-4-5-20251001` (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/ucc2805qdrq1-datasheet.pdf)