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UCC25706D

Public Made by Adom

by adom

Texas Instruments AC-DC Controllers And Regulators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)ucc25706dfactory-2.0.0extractor-text
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UCC25706D

Texas Instruments · AC-DC Controllers And Regulators · SOIC-8

UCC25706D from Texas Instruments, in a SOIC-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 ILIM input Provides pulse-by-pulse current limit by terminating the PWM pulse when the input is above 200 mV, with a typical 25 ns path to reset the PWM latch.
2 FB input Input to the PWM comparator intended to interface with an optocoupler, with a typical input impedance of 50 kΩ.
3 VFF input Feed-forward pin that provides a voltage proportional to the input supply; when VFF is below 1.0 V both the output and oscillator are disabled.
4 DISCH input A resistor to VIN sets the oscillator discharge current for the maximum duty cycle clamp, and IDISCH must be between 25 µA and 250 µA over the entire VIN range.
5 RC passive Oscillator timing pin where the on-time is set by RT and CT and the off-time by RDISCH and CT in clamp mode, and which provides a low-impedance path to ground for CT when DISCH is grounded.
6 GND power_in Ground return pin for the device.
7 OUT output Intended to drive an external FET driver or other high-impedance circuits and not directly a power MOSFET, with about 60 Ω pull-up and 30 Ω pull-down output resistance.
8 VDD power_in Power supply pin that should be bypassed with a 0.1-µF capacitor; the UVLO function keeps startup current low and holds circuits inactive until VDD is valid.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8
Category Power Management (PMIC)
Pins 8

CAD (KiCad official)

  • Symbol: UCC25706D
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ucc25706d-etched.step / ucc25706d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ucc25706d.step / ucc25706d.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (23 pp, sha256 121bdd15995942af, retrieved 2026-10-09, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF