What are the key applications for the ME3121?

It is commonly used in set-top boxes, LCD TVs, DSL modems, and digital televisions.

What protection features does the ME3121 include?

It includes thermal shutdown, input UVLO, cycle-by-cycle current limiting, and hiccup-mode short-circuit protection.

What is the switching frequency of the ME3121?

The device operates at a fixed switching frequency of 1 MHz.

What should sourcing teams check before buying ME3121AM6G?

Check lifecycle (Active), compliance data, distributor availability, and approved-source coverage. Current sourcing signal: Low; readiness: easy.

What is the pinout of ME3121AM6G?

Use the ME3121AM6G datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about ME3121AM6G pinout to locate pins, power rails, and interface signals before layout.

ME3121AM6G Datasheet, Specs, Alternatives & ECAD | MICRONE

AI summary

The ME3121 is a high-efficiency 40V, 1A synchronous buck converter in a SOT23-6 package, ideal for space-constrained power management applications.

Best for

Consumer electronics power supplies
High-voltage step-down applications

Avoid if

Applications requiring >1A output current
Extremely low-noise sensitive analog rails

Check before use

Thermal dissipation requirements at high input voltages
Inductor saturation current rating

Key specifications

Input Voltage: 4.7V - 40V
Output Current: 1A
Switching Frequency: 1MHz
Package: SOT23-6

Compliance & Environment

RoHS: Compliant
REACH: -
MSL: -
ECCN: -
HTSUS: -

Application

Consumer ElectronicsPower Management

Datasheet

6478fc52f9e3c03e1d51fe044eb73383_2203311630_MICRONE-Nanjing-Micro-One-Elec-ME3121AM6G_C2932938.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for ME3121AM6G: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

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PCB Footprint

Land pattern for PCB layout

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3D Model

STEP file for mechanical design

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KiCad Library

Verified KiCad 8 symbol, footprint, and 3D model

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Alternative components

Part	Details	Match
SY8301ABCsilergy	Pin-compatible synchronous buck, but with a higher switching frequency (2MHz) requiring external component review.	Needs validation

Design and risk insights

Questions & answers

The ME3121 is a synchronous step-down DC-DC converter designed for high-voltage input (up to 40V) and 1A output current.

RY8411RYCHiP	Pin-compatible buck with different frequency (800kHz) and slightly lower max input voltage (38V).	Needs validation
SY8291ABCsilergy	Functional alternate in same package, but is not pin-compatible and uses a different (asynchronous) topology.	Needs validation

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Alternative components

Design and risk insights

Questions & answers

What is the ME3121?+×

What are the key applications for the ME3121?+×

What protection features does the ME3121 include?+×

What is the switching frequency of the ME3121?+×

What should sourcing teams check before buying ME3121AM6G?+×

What is the pinout of ME3121AM6G?+×