component
TPS54331GDR
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
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTPS54331GDR
Texas Instruments · DC-DC Converters · SOIC-8
TPS54331GDR 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 | BOOT | output | A 0.1μF bootstrap capacitor is required between the BOOT and PH pins, and if the voltage on this capacitor falls below the minimum requirement, the high-side MOSFET is forced off until the capacitor is refreshed. |
| 2 | VIN | power_in | This pin is the 3.5V to 28V input supply voltage pin. |
| 3 | EN | input | This enable pin must be pulled below 1.25V to disable the device, can be left floating to enable it, and two resistors are recommended to program the input UVLO. |
| 4 | SS | input | This slow-start pin sets the output rise time through the external capacitor connected from it to ground. |
| 5 | VSENSE | input | This pin is the inverting node of the transconductance (gm) error amplifier. |
| 6 | COMP | output | This pin is the error amplifier output and PWM comparator input, and the frequency compensation components are connected to it. |
| 7 | GND | power_in | This is the ground pin. |
| 8 | PH | output | The PH pin is the source of the internal high-side power MOSFET and forms the switch node with the catch diode and output inductor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
TPS54331GDR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
tps54331gdr-etched.step/tps54331gdr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps54331gdr.step/tps54331gdr.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 2026-10-08, 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).