component
UCC28220DR
Public Made by Adomby adom
Texas Instruments DC-DC Converters, SOIC-16. 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
markdownUCC28220DR
Texas Instruments · DC-DC Converters · SOIC-16
UCC28220DR 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 | LINEOV | input | Input for line over-voltage comparator; typical threshold is 1.26 V. |
| 2 | LINEHYS | input | Line comparator hysteresis control pin; sets hysteresis values for both over and under-voltage line detectors. |
| 3 | VDD | power_in | Device supply input; operating voltage range 8.4 V to 14.5 V with UVLO start threshold of 10 V. |
| 4 | CS1 | input | Channel 1 current sense input; linear operating range 0 V to 1.5 V with 0.5 V internal level shift. |
| 5 | SLOPE | input | Slope compensation setting pin; resistor to ground sets ramp current internally divided by 25 and applied to 10-pF capacitor. |
| 6 | CS2 | input | Channel 2 current sense input; linear operating range 0 V to 1.5 V with 0.5 V internal level shift. |
| 7 | SS | input | Soft-start input; capacitor to ground sets soft-start time with source and sink current equal to 3/7th of oscillator charge current. |
| 8 | CTRL | input | Feedback control input; maximum control voltage for duty cycle control with 0.5 V to 1.8 V range at 0% duty cycle. |
| 9 | DISCHG | input | Oscillator discharge current setting pin; resistor to ground sets discharge current for oscillator frequency and maximum duty cycle setup. |
| 10 | CHG | input | Oscillator charge current setting pin; resistor to ground sets charge current for oscillator frequency and maximum duty cycle setup. |
| 11 | GND | power_in | Device ground; common reference for all signals. |
| 12 | OUT2 | output | PWM output from channel 2; output swings between GND and REF with approximately 33 mA drive capability and 100 Ω output impedance. |
| 13 | OUT1 | output | PWM output from channel 1; output swings between GND and REF with approximately 33 mA drive capability and 100 Ω output impedance. |
| 14 | REF | power_out | Reference voltage output; 3.3 V output (3.15 V to 3.45 V typical) protected from accidental shorts to ground. |
| 15 | LINEUV | input | Input for line under-voltage comparator; typical threshold is 1.26 V. |
| 16 | N/C | unconnected | No connection; this pin is not used on UCC28220 which does not include the JFET option. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16 |
| Category | Power Management (PMIC) |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
UCC28220DR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
ucc28220dr-etched.step/ucc28220dr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucc28220dr.step/ucc28220dr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (35 pp, sha256
9dff4a5c54fcd0b2, retrieved 2026-09-27, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).