component
REG101NA-2.5
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.
main
REG101NA-2.5
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
REG101NA-2.5 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 | VIN | power_in | Supply input; the specified input range is VOUT + 0.4V to 10V (VOUT + 0.6V over temperature), with an absolute maximum of 12V, and the regulator stops regulating when VIN < VOUT + VDROP(MAX). |
| 2 | GND | power_in | Ground reference pin for the regulator; the ground pin current is 500µA typical at IOUT = 100mA. |
| 3 | Enable | input | Enable input: output is enabled for VENABLE of 1.8V to VIN and disabled for VENABLE of -0.2V to 0.5V, with an absolute maximum of -0.3V to VIN. |
| 4 | NR/Adjust | passive | Noise reduction capacitor pin for the fixed-voltage REG101NA-2.5 (CNR of 0.01µF used in the characterization); it is the voltage-setting resistor pin only on the adjustable REG101-A. |
| 5 | VOUT | power_out | Regulated output; for the REG101-2.5 version the output voltage is 2.5V, with accuracy of ±1.5% max and output current up to 100mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
REG101NA-2.5 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
reg101na-2-5-etched.step/reg101na-2-5-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);reg101na-2-5.step/reg101na-2-5.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (25 pp, sha256
4b1eaa2d39ccb308, retrieved 2026-10-08, tier: lcsc) - 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).
# REG101NA-2.5
**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
REG101NA-2.5 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 | VIN | power_in | Supply input; the specified input range is VOUT + 0.4V to 10V (VOUT + 0.6V over temperature), with an absolute maximum of 12V, and the regulator stops regulating when VIN < VOUT + VDROP(MAX). |
| 2 | GND | power_in | Ground reference pin for the regulator; the ground pin current is 500µA typical at IOUT = 100mA. |
| 3 | Enable | input | Enable input: output is enabled for VENABLE of 1.8V to VIN and disabled for VENABLE of -0.2V to 0.5V, with an absolute maximum of -0.3V to VIN. |
| 4 | NR/Adjust | passive | Noise reduction capacitor pin for the fixed-voltage REG101NA-2.5 (CNR of 0.01µF used in the characterization); it is the voltage-setting resistor pin only on the adjustable REG101-A. |
| 5 | VOUT | power_out | Regulated output; for the REG101-2.5 version the output voltage is 2.5V, with accuracy of ±1.5% max and output current up to 100mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
## CAD (KiCad official)
- Symbol: `REG101NA-2.5`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `reg101na-2-5-etched.step` / `reg101na-2-5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `reg101na-2-5.step` / `reg101na-2-5.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/reg101) (25 pp, sha256 `4b1eaa2d39ccb308`, retrieved 2026-10-08, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/reg101na-2-5-datasheet.pdf)