component
UCC2580D-3
Public Made by Adomby adom
Texas Instruments AC-DC Controllers And Regulators, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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| ucc2580d-3-etched.step | 29d ago |
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UCC2580D-3
Texas Instruments · AC-DC Controllers And Regulators · SOIC-16
UCC2580D-3 from Texas Instruments, in a SOIC-16. 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 | DELAY | passive | A resistor from DELAY to GND programs the nonoverlap delay between OUT1 and OUT2 (Delay1 and Delay2); absolute maximum 5.3V. |
| 2 | LINE | input | Hysteretic comparator input with 5.0V on and 4.5V off thresholds, used to sense input line voltage and turn off OUT1 when the line is low. |
| 3 | VDD | power_in | Chip power supply pin bypassed to PGND, with an internal 15V shunt clamp (10mA max sink); UVLO on threshold is 9V for the -3 version and off threshold is 8.5V. |
| 4 | OUT1 | output | Gate drive output for the main switch, capable of sourcing up to 0.5A and sinking 1A. |
| 5 | PGND | power_in | Ground connection for the gate drivers, to be connected to GND at a single point. |
| 6 | OUT2 | output | Gate drive output for the auxiliary switch with 0.3A drive current capability; inverted in the -3 version to drive NMOS FETs. |
| 7 | CLK | output | Oscillator clock output from a low impedance CMOS driver, high during guaranteed off time, able to synchronize up to five other UCC3580 PWMs. |
| 8 | GND | power_in | Signal ground. |
| 9 | RAMP | input | Feedforward ramp input set by resistor R4 to input voltage and capacitor CR to GND, discharged when CLK is high, with a flux comparator clamp at 3.3V. |
| 10 | OSC2 | passive | Oscillator programming pin where a resistor to the timing capacitor controls the guaranteed off time. |
| 11 | OSC1 | passive | Oscillator programming pin where a resistor to the timing capacitor sets the maximum on time. |
| 12 | EAOUT | output | Error amplifier output and input to the PWM comparator, where loop compensation components connect from EAOUT to EAIN. |
| 13 | EAIN | input | Inverting input to the error amplifier with the noninverting input internally set to 2.5V, used for feedback and loop compensation. |
| 14 | REF | power_out | Precision 5.0V reference supplying up to 5mA to external circuits, bypassed to GND with a 1uF capacitor. |
| 15 | SS | passive | A capacitor from SS to ground programs the soft start time, charged by an internal current source once startup conditions are met. |
| 16 | SHTDWN | input | Comparator input with a 0.5V threshold that stops the chip, holding OUT1 low while OUT2 continues to oscillate with guaranteed off time. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16 |
| Category | Power Management (PMIC) |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
UCC2580D-3 - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
ucc2580d-3-etched.step/ucc2580d-3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucc2580d-3.step/ucc2580d-3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (16 pp, sha256
22578373a5379f7a, retrieved 2026-10-11, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).