component
TPS54331D
Public Made by Adomby adom
Texas Instruments DC-DC Converters, SOIC-8. Datasheet-verified pinout, 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
markdownTPS54331D
Texas Instruments · DC-DC Converters · SOIC-8
TPS54331D from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | BOOT | output | Bootstrap supply output for high-side MOSFET gate drive; requires 0.1μF capacitor to PH pin; MOSFET forced off if voltage falls below 2.1V typical. |
| 2 | VIN | power_in | Main input power supply; operating range 3.5V to 28V, absolute maximum 30V. |
| 3 | EN | input | Active-high enable control; device disabled at 1.25V threshold; programmable UVLO via external resistor divider. |
| 4 | SS | input | Soft start capacitor connection; sets output ramp rate at 2μA charge current; recommended time range 1ms to 10ms with maximum 27nF capacitor. |
| 5 | VSENSE | input | Error amplifier inverting input for output voltage feedback; compares actual output to 0.8V internal reference; maximum pull current 10μA. |
| 6 | COMP | output | Error amplifier output and PWM comparator input; frequency compensation network elements connected here; maximum sink current 100μA. |
| 7 | GND | power_in | Ground reference terminal. |
| 8 | PH | output | High-side MOSFET source switch node output; maximum voltage 30V, minimum -0.6V, rated 9A peak pull current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
TPS54331D - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
tps54331d-etched.step/tps54331d-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps54331d.step/tps54331d.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (40 pp, sha256
6ac89d4fddb009ba, retrieved 2026-09-23, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).