component
UCC2808APWTR-2
Public Made by Adomby adom
Texas Instruments DC-DC Controllers, TSSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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UCC2808APWTR-2
Texas Instruments · DC-DC Controllers · TSSOP-8
UCC2808APWTR-2 from Texas Instruments, in a TSSOP-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 | OUTA | output | Alternating high-current gate-drive output that can source 500 mA peak and sink 1 A peak, switching at half the oscillator frequency with 60 ns to 200 ns dead time between OUTA and OUTB. |
| 2 | VDD | power_in | Device supply input; the recommended operating range is 5 V to 14 V for UCCx808A-2, the absolute maximum is 15 V, and a 1 µF decoupling capacitor placed close to the pins is recommended. |
| 3 | COMP | output | Error amplifier output and PWM comparator input, a low-output-impedance 2 MHz amplifier that can source and sink current; pulling COMP to GND forces zero duty cycle and the maximum COMP voltage is clamped to provide soft start. |
| 4 | FB | input | Inverting input of the error amplifier, where the FB trace should be kept as short as possible and stray capacitance minimized for best stability. |
| 5 | CS | input | PWM input, peak current sense and overcurrent comparator whose overcurrent threshold is 0.7 V to 0.8 V (0.75 V typical), with an internal MOSFET that discharges the current-sense filter capacitor each cycle. |
| 6 | RC | output | Oscillator programming pin, where a timing resistor of 10 kΩ to 200 kΩ connects from VDD to RC and a timing capacitor of 100 pF to 1000 pF connects from RC to GND, and resistors below 10 kΩ should be avoided. |
| 7 | GND | power_in | Reference and power ground for all functions, where a low-impedance board ground plane is strongly recommended because of the high-current, high-frequency operation. |
| 8 | OUTB | output | Alternating high-current gate-drive output that can source 500 mA peak and sink 1 A peak, switching at half the oscillator frequency with 60 ns to 200 ns dead time between OUTB and OUTA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-8 |
| Category | Power Supply Chip |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
UCC2808APWTR-2 - Footprint:
Package_SO:TSSOP-8_3x3mm_P0.65mm - 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files:
ucc2808apwtr-2-etched.step/ucc2808apwtr-2-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucc2808apwtr-2.step/ucc2808apwtr-2.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (27 pp, sha256
a8e88286e9a900bf, retrieved 2026-10-08, 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-5-5(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).