LTM4656
LTM4656-1

Name: LTM4656
Brand: Analog Devices
Price: 28.00 USD
Availability: InStock

RECOMMENDED FOR NEW DESIGNS

Synchronous Boost μModule Regulator with Input-Output Short Protection

Data Sheet (Rev. A) Product Selection Table

Part Models: 6
1ku List Price: Starting From $28.00

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Overview

Complete Boost Switch Mode Power Supply
Wide Input Voltage Range: 4.5V to 28V
Output Voltage Range: 6V to 36V
4A Continuous Output Current (12V_IN, 24V_OUT)
±2% Maximum Total Output Voltage Regulation Over Load, Line and Temperature
Input Disconnect in Shutdown
Inrush Current Limit
External Frequency Synchronization

Programmable Frequency (350kHz to 780kHz)
Parallel Current Sharing
Up to 98% Efficiency
Selectable Burst Mode^® Operation
In-Line Overcurrent Protection
Overtemperature Protection
LTM4656-1 Adjustable Compensation Version
16mm × 16mm × 7.07mm BGA Package

Part Models: 6
1ku List Price: Starting From $28.00

Documentation

Data Sheet 1

LTM4656/LTM4656-1: Synchronous Boost μModule Regulator with Input-Output Short Protection Data Sheet (Rev.A) 03/27/2026

Technical Articles 1

Configuring Four-Switch Buck-Boost µModule Regulators for Versatile Applications: Step-Up, Step-Down, or Inverting Output 06/09/2025

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTM4656EY#PBF	144-Lead BGA (16mm x 16mm x 7.07mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTM4656EY-1#PBF	144-Lead BGA (16mm x 16mm x 7.07mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTM4656IY	144-Lead BGA (16mm x 16mm x 7.07mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTM4656IY#PBF	144-Lead BGA (16mm x 16mm x 7.07mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTM4656IY-1	144-Lead BGA (16mm x 16mm x 7.07mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTM4656IY-1#PBF	144-Lead BGA (16mm x 16mm x 7.07mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Nov 20, 2025 - 25_0265 LTM4656, LTM4656-1 Change of Inductor
		PCN25_0265_Form Material_Report
LTM4656EY#PBF	PRODUCTION
LTM4656EY-1#PBF	PRODUCTION
LTM4656IY	PRODUCTION
LTM4656IY#PBF	PRODUCTION
LTM4656IY-1	PRODUCTION
LTM4656IY-1#PBF	PRODUCTION
Sep 13, 2022 - 22_0193 Laser Top Mark Conversion for uModule COP and TMSV_COP Packages
		PCN22_0193_Form Material_Report
LTM4656EY#PBF	PRODUCTION
LTM4656EY-1#PBF	PRODUCTION
LTM4656IY	PRODUCTION
LTM4656IY#PBF	PRODUCTION
LTM4656IY-1	PRODUCTION
LTM4656IY-1#PBF	PRODUCTION
Jun 2, 2021 - 20_0245 Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)
		PCN20_0245_Form Material_Report Delta Qualification Matrix Other Qualification Results Summary
LTM4656EY#PBF	PRODUCTION
LTM4656EY-1#PBF	PRODUCTION
LTM4656IY	PRODUCTION
LTM4656IY#PBF	PRODUCTION
LTM4656IY-1	PRODUCTION
LTM4656IY-1#PBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LTM4656

LTpowerCAD 1

LTM4656 Project - DC2634A 6-24Vin to 24Vout, 4A, 400kHz

Design tools for the following parts are available in LTpowerCAD:

LTM4656
LTM4656-1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

LTpowerCAD^® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.

Evaluation Kits

LTM4656 Demo Board | 6V to 36V Input, 24V Output, Short-Circuit Protected Synchronous Boost μModule Regulator

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Product Details

Demonstration circuit 2634A is a boost µModule regulator featuring the LTM4656. The DC2634A operates from 6V to 36V input and generates 24V, 4A output from 12V input. When V_IN ≥24V, V_OUT follows V_IN. Also, the LTM4656 has precision voltage reference, which can generate out-put voltage with 2% tolerance over the full operating conditions. The 400kHz switching frequency operation results in small and efficient circuit. The converter achieves over 95% efficiency with 4A load. The LTM4656 protects the load with the integrated soft-start and output short-circuit protection functions. The demonstration circuit can be easily modified to regulate different output voltages.

The DC2634A has small circuit footprint. It is a high performance and cost-effective solution for generating out-put voltages up to 36V from inputs as low as 5V.