component
TPS55340RTER
Public Made by Adomby adom
Texas Instruments DC-DC Converters, WQFN-16-EP(3x3). 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
markdownTPS55340RTER
Texas Instruments · DC-DC Converters · WQFN-16-EP(3x3)
TPS55340RTER from Texas Instruments, in a WQFN-16-EP(3x3). 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 | SW | passive | Drain of the internal power MOSFET; connect to the switched side of the boost or SEPIC inductor or the flyback transformer. |
| 2 | VIN | power_in | Input supply pin to the IC; connect VIN to a supply voltage between 2.9 V and 32 V (may differ from the boost power stage input). |
| 3 | EN | input | Enable pin; when the voltage on this pin falls below the enable threshold for more than 1 ms, the IC turns off. |
| 4 | SS | passive | Soft-start programming pin; a capacitor between SS and AGND programs the soft-start timing. |
| 5 | SYNC | input | Switching frequency synchronization pin; an external clock can set the switching frequency between 200 kHz and 1.0 MHz, otherwise tie to AGND. |
| 6 | AGND | power_in | Signal ground of the IC. |
| 7 | COMP | output | Output of the transconductance error amplifier; an external RC network on this pin compensates the regulator feedback loop. |
| 8 | FB | input | Error amplifier input and feedback pin for positive voltage regulation; connect to the center tap of a resistor divider to program the output voltage. |
| 9 | FREQ | passive | Switching frequency program pin; an external resistor between FREQ and AGND sets the switching frequency. |
| 10 | NC | unconnected | Reserved pin that must be connected to ground. |
| 11 | PGND | power_in | Power ground of the IC; connected to the source of the internal power MOSFET switch. |
| 12 | PGND | power_in | Power ground of the IC; connected to the source of the internal power MOSFET switch. |
| 13 | PGND | power_in | Power ground of the IC; connected to the source of the internal power MOSFET switch. |
| 14 | NC | unconnected | Reserved pin that must be connected to ground. |
| 15 | SW | passive | Drain of the internal power MOSFET; connect to the switched side of the boost or SEPIC inductor or the flyback transformer. |
| 16 | SW | passive | Drain of the internal power MOSFET; connect to the switched side of the boost or SEPIC inductor or the flyback transformer. |
| 17 | PowerPAD | power_in | Exposed thermal pad; should be soldered to AGND, with thermal vias to the internal ground plane recommended for improved power dissipation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WQFN-16-EP(3x3) |
| Category | Power Management (PMIC) |
| Pins | 17 |
CAD (KiCad official)
- Symbol:
TPS55340RTER - Footprint:
Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm - 3D model: WQFN-16-EP(3x3) (KiCad packages3D, STEP)
- 3D model files:
tps55340rter-etched.step/tps55340rter-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps55340rter.step/tps55340rter.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (45 pp, sha256
05e4069b78ee3f03, retrieved 2026-09-22, 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).