component
UC3825ADWTR
Public Made by Adomby adom
Texas Instruments DC-DC Converters, SOIC-16-300mil. 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
markdownUC3825ADWTR
Texas Instruments · DC-DC Converters · SOIC-16-300mil
UC3825ADWTR 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 the error amplifier. |
| 2 | NI | input | Non-inverting input to the error amplifier. |
| 3 | EAOUT | output | Output of the error amplifier, used for loop compensation. |
| 4 | CLK/LEB | output | Output of the internal oscillator; a capacitor on this pin programs the leading edge blanking period, and the pin no longer accepts an incoming synchronizing signal. |
| 5 | RT | input | Timing resistor connection pin for oscillator frequency programming. |
| 6 | CT | input | Timing capacitor connection pin for oscillator frequency programming; it should be connected to device ground using minimal trace length. |
| 7 | RAMP | input | Non-inverting input to the PWM comparator with a 1.25-V internal input offset; it serves as voltage-mode feed-forward input or as the slope compensation input in peak current mode. |
| 8 | SS | input | Soft-start input pin which also doubles as the maximum duty cycle clamp. |
| 9 | ILIM | input | Input to the current limit comparator. |
| 10 | GND | power_in | Analog ground return pin. |
| 11 | OUTA | output | High current totem pole output A of the on-chip drive stage. |
| 12 | PGND | power_in | Ground return pin for the output driver stage. |
| 13 | VC | power_in | Power supply pin for the output stage; bypass with a 0.1-μF monolithic ceramic low ESL capacitor with minimal trace lengths. |
| 14 | OUTB | output | High current totem pole output B of the on-chip drive stage. |
| 15 | VCC | power_in | Power supply pin for the device; bypass with a 0.1-μF monolithic ceramic low ESL capacitor with minimal trace lengths. |
| 16 | VREF | power_in | 5.1-V reference output; bypass with a 0.1-μF monolithic ceramic low ESL capacitor with minimal trace length to the ground plane for stability. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Power Management (PMIC) |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
UC3825ADWTR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files:
uc3825adwtr-etched.step/uc3825adwtr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);uc3825adwtr.step/uc3825adwtr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (25 pp, sha256
282207a34ca7cf7a, retrieved 2026-10-10, 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).