component
REG101UA-A
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, 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
markdownREG101UA-A
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOIC-8
REG101UA-A from Texas Instruments, in a SOIC-8. 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 | VOUT | power_out | Regulated output; pin 1 and pin 2 must both be connected. Source of output current limited by foldback current limit (typ 170 mA). |
| 2 | VOUT | power_out | Regulated output; pin 1 and pin 2 must both be connected. |
| 3 | NR/Adjust | passive | For REG101-A, this is the voltage-setting resistor pin (reference 1.267 V typ, adjust pin current 0.2 µA typ, 1 µA max, absolute maximum voltage -0.3 V to 6.0 V). |
| 4 | GND | power_in | Ground pin for the regulator. |
| 5 | Enable | input | Enable input: output is enabled when VENABLE is at least 1.8 V and disabled when VENABLE is 0.5 V or less; absolute maximum is -0.3 V to VIN. |
| 6 | NC | unconnected | No internal connection. |
| 7 | VIN | power_in | Supply input; pin 7 and pin 8 must both be connected, with operating input range 1.8 V to 10 V and absolute maximum 12 V. |
| 8 | VIN | power_in | Supply input; pin 7 and pin 8 must both be connected, with operating input range 1.8 V to 10 V and absolute maximum 12 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
REG101UA-A - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
reg101ua-a-etched.step/reg101ua-a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);reg101ua-a.step/reg101ua-a.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 2026-10-09, 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).