component
LP2981A-28DBVR
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 2d ago |
| viewers | 8d ago |
| lp2981a-28dbvr-etched.fit.json | 2d ago |
| lp2981a-28dbvr-etched.glb | 2d ago |
| lp2981a-28dbvr-etched.step | 2d ago |
| lp2981a-28dbvr.glb | 8d ago |
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| lp2981a-28dbvr.kicad_sym | 8d ago |
| lp2981a-28dbvr.lbr | 8d ago |
| lp2981a-28dbvr.step | 8d ago |
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| README.md | 8d ago |
LP2981A-28DBVR
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
LP2981A-28DBVR from Texas Instruments, in a SOT-23-5. 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 | IN | power_in | Input supply pin; use a capacitor with a value of 1µF or larger from this pin to ground. |
| 2 | GND | power_in | Common ground (device substrate). |
| 3 | ON/OFF | input | Enable pin for the LDO; driving high enables the device, driving low disables it; tie to VIN if unused. |
| 4 | NC | unconnected | Do not connect; pin 4 is not internally connected on the new chip. |
| 5 | OUT | power_out | Output of the regulator; use a capacitor with a value of 2.2µF or larger from this pin to ground. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
LP2981A-28DBVR - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
lp2981a-28dbvr-etched.step/lp2981a-28dbvr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lp2981a-28dbvr.step/lp2981a-28dbvr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (35 pp, sha256
f9a14a5370d16829, retrieved 2026-09-27, 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-4-6(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).