component
UC2573D
Public Made by Adomby adom
Texas Instruments DC-DC Converters, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownUC2573D
Texas Instruments · DC-DC Converters · SOIC-8
UC2573D 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 | EAINV | input | Error amplifier inverting input, regulated to 1.5V and rated -0.6V to VCC; also feeds the sleep comparator (2.2V threshold). |
| 2 | EAOUT | output | Error amplifier output to the PWM comparator, with maximum 25mA current rating. |
| 3 | CS | input | Current sense comparator input for pulse-by-pulse current limit, threshold 0.43V below VCC and rated -0.3V to VCC. |
| 4 | VCC | power_in | Positive supply input, absolute maximum 35V, with undervoltage lockout start threshold of 4.2V typical. |
| 5 | OUT | output | Gate drive output (0.5A peak) for the external PMOS switch, rated -0.7A to 0.7A. |
| 6 | GND | power_in | Ground reference for the device. |
| 7 | RAMP | input | Oscillator ramp input to the PWM comparator, rated -0.3V to 4V. |
| 8 | 3VREF | power_out | 3V reference output (2.94V to 3.06V), sourcing up to 15mA absolute maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
UC2573D - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
uc2573d-etched.step/uc2573d-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);uc2573d.step/uc2573d.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (13 pp, sha256
1c326ba523e1ed2a, retrieved 2026-10-11, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).