component
TPS5402DR
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
markdownTPS5402DR
Texas Instruments · DC-DC Converters · SOIC-8
TPS5402DR 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 voltage output for high-side MOSFET gate drive; requires 0.1-µF capacitor between BOOT and LX pin. |
| 2 | VIN | power_in | Input supply voltage pin with operating range 3.5 V to 28 V. |
| 3 | ROSC | input | Switching frequency program pin; connect resistor for 50 kHz to 1.1 MHz range, ground for 70 kHz default, or leave open for 120 kHz. |
| 4 | SS | input | Soft start control pin; external capacitor to ground sets output rise time with 2-µA charging current. |
| 5 | VSENSE | input | Output voltage feedback input pin regulated at 0.8 V nominal for regulation and overcurrent detection. |
| 6 | COMP | output | Error amplifier output and PWM comparator input; connect frequency compensation network to ground. |
| 7 | GND | power_in | Ground reference pin. |
| 8 | LX | output | High-side switching node connected to external inductor and BOOT capacitor, voltage range -0.3 to 30 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
TPS5402DR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
tps5402dr-etched.step/tps5402dr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps5402dr.step/tps5402dr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (19 pp, sha256
6669b6a298e89c80, retrieved 2026-09-23, tier: manufacturer) - 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).