component
UCC3805DTR
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
markdownUCC3805DTR
Texas Instruments · AC-DC Controllers And Regulators · SOIC-8
UCC3805DTR 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 integrated soft start; can force to GND externally for zero duty cycle. |
| 2 | FB | input | Error amplifier inverting input; keep lead length short and minimize stray capacitance for optimal stability. |
| 3 | CS | input | Current sense comparator input with 100ns internal leading edge blanking; analog RC filter not required for most applications. |
| 4 | RC | input | Oscillator timing pin; set frequency with RT (10kΩ to 200kΩ) from REF and CT (100pF to 1000pF) to GND. |
| 5 | GND | power_in | Ground reference for all device signal and power supply functions. |
| 6 | OUT | output | High-current power driver output with ±1A peak capability; actively held low when VCC is below threshold. |
| 7 | VCC | power_in | Power supply input connection; supply through current-limiting resistor with 0.1µF-1µF bypass capacitor to GND. |
| 8 | REF | output | Voltage reference output pulled to ground via 5kΩ resistor when VCC is between 1V and UVLO threshold. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
UCC3805DTR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ucc3805dtr-etched.step/ucc3805dtr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucc3805dtr.step/ucc3805dtr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (59 pp, sha256
3f7e3ad23bdb4f2f, 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).