component

LN2266PB2MR-G

Public Made by Adom

by adom

NATLINEAR DC-DC Converters, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Datasheet

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Contents

README

markdown

LN2266PB2MR-G

NATLINEAR · DC-DC Converters · SOT-23-6

LN2266PB2MR-G from NATLINEAR, in a SOT-23-6. 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 CE input Chip enable input. Drive high to enable the converter; drive low (< 0.4V) to shut the device down (IOFF typ. 0.01uA). CE shutdown threshold is typ. 0.8V (0.4-1.2V) referenced to VDD=3.3V. In the '-B' option this pin also drives the external MOSFET expansion path.
2 NC unconnected No connect. Leave floating or tie to GND.
3 GND power_in Device ground return. Connect to the system ground plane with a low-impedance path close to the input/output capacitors.
4 LX power_out Switching node / rectifier terminal. Drain of the internal 2.5A N-MOS power switch; connects to the boost inductor and Schottky rectifier (e.g. 1N5819) anode. Absolute max VLX = Vss+5.5V; internal RDS(on) ~0.18Ω.
5 VDD power_in Supply input to the control circuitry. Operating range 2V to 5.2V (absolute max 5.5V). Bypass with a 10uF ceramic capacitor close to the pin. Startup guaranteed from VIN as low as 0.9V (at IL=1mA) via the LX/inductor path.
6 FB input Feedback input to the error amplifier. Regulates to Vref = 1.25V (±2% for the '2' accuracy option). Set VOUT with an external resistor divider: VOUT = 1.25V * (1 + R1/R2). Programmable output range 2V to 5.2V.

Key specifications

Parameter Value
Manufacturer NATLINEAR
Package SOT-23-6
Category PMIC
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • LN2266PB2MR-G
  • LN2266PA2MR-G
  • LN2266PB1MR-G
  • LN2266PA1MR-G
  • LN2266P**M*-G
  • LN2266P**P*-G

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Start-up voltage VST 0.9 1 V IL=1mA 4
VDD operating voltage VDD 2 5.2 V VDD pin voltage 4
Shutdown current IOFF 0.01 1 µA CE=0, VIN=4.5V 4
Switch cut-off current Iswitch-off 17 25 μA VIN=6V 4
Feedback reference voltage Vref 1.225 1.25 1.275 V Close Loop Vdd=3.3V 4
Switching frequency fs 800 1000 1250 KHZ Vdd=3.3V 4
Maximum duty cycle Dmax 70 75 % Vdd=3.3V 4
LX on-resistance 0.18 0.25 Ω Vdd=3.3V 4
Current limit Ilimit 2.3 2.5 2.7 A Vdd=3.3V 4
Line regulation Δ Vline 0.25 5 mV/V Vin=3.5-6V,IL=1mA 4
CE pin turn-off voltage 0.4 0.8 1.2 V VDD=3.3V 4
VDD pin voltage (absolute maximum) VDD -0.3 5.5 V relative to Vss 3
VOUT pin voltage (absolute maximum) VOUT -0.3 5.5 V relative to Vss 3
VLX pin voltage (absolute maximum) VLX -0.3 5.5 V relative to Vss 3
LX switch current (absolute maximum) ILX 2.5 A 3
Power dissipation PD 150 mW SOT23-6L package 3
Operating ambient temperature Topr -40 80 ℃ 3

CAD (KiCad official)

  • Symbol: LN2266PB2MR-G
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: ln2266pb2mr-g-etched.step / ln2266pb2mr-g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ln2266pb2mr-g.step / ln2266pb2mr-g.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ln2266pb2mr-g.step 97 KB You want the bare part, or you mark your own boards.
ln2266pb2mr-g-etched.step 2.4 MB You want the part with LN2266PB2MR-G already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 595 faces against 117 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: NATLINEAR datasheet (8 pp, sha256 d10d6fe1e894f9a4, retrieved 2026-08-17, tier: lcsc)
  • 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).

Datasheet PDF