component

XT3406AFMR-G

Public Made by Adom

by adom

NATLINEAR DC-DC Converters, SOT-23-5L. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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XT3406AFMR-G

NATLINEAR · DC-DC Converters · SOT-23-5L

XT3406AFMR-G from NATLINEAR, in a SOT-23-5L. 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 (VCEH >= 1.2V) to enable the regulator; drive low (VCEL <= 0.9V) to place the device in shutdown (typical standby current 0uA, max 1uA at VIN=5V). Absolute max -0.3V to VIN+0.3V.
2 GND power_in Ground return for the device and power stage.
3 LX output Switching node - output of the internal power MOSFET stage. Connect to the external inductor (typ. 2.2uH). Absolute max current +/-1500mA; abs max voltage -0.3V to VIN+0.3V. Peak current limit typ. 1.2A.
4 VIN power_in Power supply input, 1.8V to 5.5V operating range (absolute max 6.5V). Bypass with a 4.7uF ceramic capacitor close to the pin.
5 FB input Output voltage feedback input. Connect to the resistor divider from VOUT; internal reference is 0.6V typ. (0.59-0.61V). Input bias current +/-50nA max.

Key specifications

Parameter Value
Manufacturer NATLINEAR
Package SOT-23-5L
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • XT3406AFMR-G
  • XT3406AFMR-GAFML

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Input voltage VIN 1.8 5.5 V 4
FB feedback voltage VFB 0.59 0.6 0.61 V 4
CE enable voltage VCEH 1.2 V VIN=5V 4
CE disable voltage VCEL 0.9 V VIN=5V 4
Standby current ISTB 0 1 uA VCE=0V, VIN=5V 4
VFB input current I_FB -50 50 nA VFB=0.65V 4
Power MOSFET on-resistance (P-channel) RDSON_P 0.35 0.5 Ω ISW=300mA 4
Power MOSFET on-resistance (N-channel) RDSON_N 0.3 0.45 Ω ISW=-300mA 4
SW leakage current ILEAK_SW -1 1 uA CE=0V, VIN=5V 4
Input voltage (absolute maximum) VIN -0.3 6.5 V 3
FB voltage (absolute maximum) VFB -0.3 6.5 V 3
LX voltage (absolute maximum) VLX -0.3 V max printed as VIN + 0.3 3
CE pin voltage (absolute maximum) VCE -0.3 V max printed as VIN + 0.3 3
LX pin current (absolute maximum) ILX -1500 1500 mA 3
Power dissipation Pd 250 mW SOT-23-5L 3
Operating ambient temperature Topr -40 85 ℃ 3
Storage temperature Tstg -55 125 ℃ 3

CAD (KiCad official)

  • Symbol: XT3406AFMR-G
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)
  • 3D model files: xt3406afmr-g-etched.step / xt3406afmr-g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); xt3406afmr-g.step / xt3406afmr-g.glb are the bare package body.

Provenance

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

  • Datasheet: NATLINEAR datasheet (7 pp, sha256 84eba0563afcd9fe, 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).

Datasheet PDF