ProjectsPricingInsights

FM4258 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

FM4258 product

FM4258

PMIC - Battery Chargers

Battery ChargerBoost ChargerDual-cell Li-ionPMIC

The FM4258 is a specialized 5V USB-input boost charger IC designed for dual-cell Li-ion battery applications, featuring adaptive input current control and integrated protection.

Best for

  • Dual-cell Li-ion battery charging from 5V USB sources

Avoid if

  • Applications requiring single-cell charging or input voltages outside 3.6V-5.5V

Check before use

  • Thermal design of the PCB, as the thermal pad is critical for power dissipation

Key specifications

Input Voltage
3.6V - 5.5V
Max Charge Current
2.5A
Efficiency
90%
Switching Frequency
650KHz

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Consumer ElectronicsPower Management

Datasheet

d0b1f6775d9df1e433a1b706e10434c4_2312081758_Shenzhen-Fuman-Elec-FM4258_C19630717.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for FM4258: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
Get Files
PCB Footprint
Land pattern for PCB layout
Get Files
3D Model
STEP file for mechanical design
Get Files
KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
Generate library

Login required · CAD models billed separately as an add-on

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

The FM4258 is a highly integrated, high-reliability boost charging management IC specifically designed for dual-cell series Li-ion batteries.