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Contents

README

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UC3825ADW

Texas Instruments · DC-DC Converters · SOIC-16-300mil

UC3825ADW from Texas Instruments, in a SOIC-16-300mil. 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 INV input Inverting input to error amplifier with voltage range -0.3 to 7V.
2 NI input Non-inverting input to error amplifier with voltage range -0.3 to 7V.
3 EAOUT output Error amplifier output for compensation with up to 5mA source current.
4 CLK/LEB output Internal oscillator clock output with leading edge blanking control and 5mA maximum source current.
5 RT input Timing resistor connection pin for oscillator frequency programming accepting -5mA input current.
6 CT input Timing capacitor connection pin for oscillator frequency programming.
7 RAMP input PWM comparator non-inverting input with 1.25V internal offset and -0.3 to 7V voltage range.
8 SS input Soft-start and maximum duty cycle clamp input with -0.3 to 6V range and 20mA maximum sink current.
9 ILIM input Current limit comparator input with 1.0V limit threshold and 1.2V overcurrent fault threshold, -0.3 to 6V.
10 GND power_in Analog ground return pin.
11 OUTA output High current totem pole output A with 2A peak pulse current capability.
12 PGND power_in Output driver stage ground return pin.
13 VC power_in Power supply pin for output stage with 22V maximum rating; bypass with 0.1μF capacitor.
14 OUTB output High current totem pole output B with 2A peak pulse current capability.
15 VCC power_in Device power supply pin with 22V maximum rating; bypass with 0.1μF capacitor.
16 VREF power_out 5.1V reference output; bypass with 0.1μF capacitor for stability.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-16-300mil
Category Power Management (PMIC)
Pins 16

CAD (KiCad official)

  • Symbol: UC3825ADW
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
  • 3D model files: uc3825adw-etched.step / uc3825adw-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); uc3825adw.step / uc3825adw.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (25 pp, sha256 845d3e8b8150e1a1, retrieved 2026-10-01, 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, primary claude-haiku-4-5-20251001 (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