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ME3121AM6G

Public Made by Adom

by adom

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

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Contents

README

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ME3121AM6G

MICRONE · DC-DC Converters · SOT-23-6

ME3121AM6G from MICRONE, 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 BOOT passive Bootstrap capacitor pin for the high-side NMOSFET gate driver supply. Connect a ceramic capacitor of at least 0.1 µF between BOOT and LX. VBOOT_SW absolute max is -0.3 V to +6 V.
2 GND power_in Ground pin. Return for input, output, and internal control circuitry.
3 FB input Feedback voltage input to the inverting input of the internal error amplifier. Regulated to the 0.6 V ± 2 % internal reference; output voltage is set by an external R1/R2 divider with R1 = R2 × (VOUT/0.6 V − 1). Absolute max -0.3 V to +40 V.
4 EN input Enable input. Logic high enables the chip (rising threshold typ 1.3 V, max 1.5 V; falling threshold min 0.8 V, typ 1.0 V). Absolute max -0.3 V to +40 V, so EN can be tied directly to VIN through a pull-up.
5 VIN power_in Power input for the controller and power switches. Operating range 4.7 V to 40 V (typ 12 V); absolute max 40 V. Bypass with a 47 µF/40 V ceramic capacitor placed close to the pin.
6 LX power_out Switching node between the internal high-side and low-side NMOSFETs. Connect to the external inductor (typ 3.3 µH) and to the bootstrap capacitor return. Absolute max -0.3 V to +40 V.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • ME3121AM6G

CAD (KiCad official)

  • Symbol: ME3121AM6G
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: me3121am6g-etched.step / me3121am6g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); me3121am6g.step / me3121am6g.glb are the bare package body.

Provenance

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

  • Datasheet: MICRONE datasheet (9 pp, sha256 b49ad10e085789c4, 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