component
UCC28056BDBVR
Public Made by Adomby adom
Texas Instruments AC-DC Controllers And Regulators, SOT-23-6. 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
markdownUCC28056BDBVR
Texas Instruments · AC-DC Controllers And Regulators · SOT-23-6
UCC28056BDBVR from Texas Instruments, in a SOT-23-6. 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 | VOSNS | input | Inverting input of voltage error amplifier with absolute maximum rating -0.5V to 7V; detects output voltage for overvoltage protection when exceeding VOvp1Rise threshold of 2.69V to 2.81V. |
| 2 | ZCD/CS | input | Zero current detection and current sensing input with absolute maximum -0.5V to 7V; monitors attenuated MOSFET drain voltage for valley switching and detects overcurrent at VZCOcp1 threshold of 450mV to 550mV or VZCOcp2 threshold of 670mV to 825mV. |
| 3 | VCC | power_in | Positive power supply voltage input with absolute maximum -0.5V to 36V and recommended operating range 8.5V to 34V; switch operation begins when VCC exceeds VCCStart threshold of 10.65V to 11V and stops when below VCCStop of 8.5V to 9.2V. |
| 4 | GND | power_in | Controller ground reference pin connected exclusively to the lower terminal of the external current sensing resistor RCS in the power stage. |
| 5 | DRV | output | Gate drive output to main power MOSFET with absolute maximum -0.3V to 20V and internal limit VDRHigh of 10V to 15V; external resistor RDG value from 9kΩ to 130kΩ programs valley switching delay TZCDR from 170ns to 457ns. |
| 6 | COMP | output | Error amplifier output with absolute maximum -0.5V to 7V and internal limit VCOClmp of 5.5V to 5.71V; connected through external RC compensation network to ground for voltage loop stabilization and overvoltage protection. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
UCC28056BDBVR - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
ucc28056bdbvr-etched.step/ucc28056bdbvr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucc28056bdbvr.step/ucc28056bdbvr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (49 pp, sha256
c9fa6ad1b816408d, retrieved 2026-09-24, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).