component
UCC28703DBVR
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
markdownUCC28703DBVR
Texas Instruments · AC-DC Controllers And Regulators · SOT-23-6
UCC28703DBVR 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 | NTC | input | NTC interface to external NTC (negative temperature coefficient) resistor for remote temperature sensing; pulling this pin low shuts down PWM action. |
| 2 | VDD | power_in | Bias supply input pin to the controller; a carefully-placed bypass capacitor to GND is required on this pin with operating range 9 V to 35 V. |
| 3 | DRV | output | Gate drive output used to drive the gate of an external high voltage MOSFET switching transistor with 25-mA current source on turn-on and 14-V maximum output voltage. |
| 4 | CS | input | Current sense input connects to a ground-referenced current-sense resistor in series with the power switch to monitor and control peak primary current with 235-ns leading-edge blanking time. |
| 5 | GND | power_in | Ground pin serving as both reference pin for the controller and low-side return for drive output; return all AC decoupling capacitors as close as possible to this pin. |
| 6 | VS | power_in | Voltage sense input for voltage and timing feedback to the controller connected to voltage divider between auxiliary winding and GND with internal reference of 4.05 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
UCC28703DBVR - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
ucc28703dbvr-etched.step/ucc28703dbvr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ucc28703dbvr.step/ucc28703dbvr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (36 pp, sha256
9647423fe1ad9b83, retrieved 2026-10-01, tier: manufacturer) - 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).