LP5907MFX-2.9
Public Made by Adomby adom
Texas Instruments LP5907MFX 2 9 NOPB Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗PCB Footprint
Open full view ↗Datasheet
Open in new tab ↗Contents
README
markdownLP5907MFX-2.9
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
LP5907MFX-2.9 from Texas Instruments, in a SOT-23-5. 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 | IN | power_in | Input voltage supply, 2.2 V to 5.5 V. Connect a minimum 1 µF ceramic bypass capacitor from IN to GND close to the pin. |
| 2 | GND | power_in | Common ground reference for the regulator. All voltages in the datasheet are referenced to this pin. |
| 3 | EN | input | Active-high enable. VIH ≥ 1.2 V enables the regulator; VIL ≤ 0.4 V disables the output and engages a 230 Ω (typ) pulldown on OUT. An internal 1 MΩ pulldown holds the regulator OFF by default. |
| 4 | N/C | unconnected | No internal electrical connection. May be left floating or tied to GND on the PCB. |
| 5 | OUT | power_out | Regulated 2.9 V output, up to 250 mA. Connect a minimum 1 µF low-ESR ceramic capacitor to GND for stability. An internal 230 Ω (typ) pulldown discharges VOUT when EN is low. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | PMIC |
| Pins | 5 |
Ordering variants
Same part, different packaging or reel option.
LP5907MFX-2.9LP5907MFX-2.9SNXLP5907MFX-2.9YKELP5907MFX-2.9YKM
CAD (KiCad official)
- Symbol:
LP5907MFX-2.9 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
lp5907mfx-2-9-etched.step/lp5907mfx-2-9-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lp5907mfx-2-9.step/lp5907mfx-2-9.glbare the bare package body.
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
lp5907mfx-2-9.step |
85 KB | You want the bare part, or you mark your own boards. |
lp5907mfx-2-9-etched.step |
2.0 MB | You want the part with LP5907MFX-2.9 already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 499 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (46 pp, sha256
eb1c24bcba3fa5ce, retrieved 2026-08-17, 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:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).