component

REG102NA-3

Public Made by Adom

by 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.

componentpower management (pmic)reg102na-3factory-2.0.0extractor-text
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REG102NA-3

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

REG102NA-3 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 (operating range 1.8V to 10V), and the regulator does not regulate when VIN < VOUT + VDROP(MAX).
2 GND power_in Ground reference; ground pin current is 600µA typical at IOUT = 250mA and falls to about 0.01µA when the Enable pin is low.
3 Enable input Active-high enable compatible with TTL-CMOS levels: inputs below 0.5V (max) turn the regulator off, VENABLE must be at least 1.8V to enable it, and VEN must not exceed VIN (absolute maximum -0.3V to VIN).
4 NR/Adjust passive On the fixed-voltage REG102NA-3 this is the noise reduction pin, where an optional CNR (0.01µF typical) to ground filters the voltage reference and lowers output noise; NR pin voltage is limited to -0.3V to 6.0V.
5 VOUT power_out Regulated output; the fixed 3.0V version has ±1.5% maximum accuracy, typical current limit of 400mA, and foldback limiting to about 150mA short-circuit current.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

CAD (KiCad official)

  • Symbol: REG102NA-3
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: reg102na-3-etched.step / reg102na-3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); reg102na-3.step / reg102na-3.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (31 pp, sha256 4ed123459903f8b5, retrieved 2026-10-11, 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