LTM4705

Name: LTM4705
Brand: Analog Devices
Price: 14.03 USD
Availability: InStock

RECOMMENDED FOR NEW DESIGNS

20V_IN, Dual 5A or Single 10A Step-Down DC/DC μModule Regulator

Data Sheet (Rev. A) Product Selection Table

Part Models: 2
1ku List Price: Starting From $14.03

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Overview

Complete Solution in <1cm² (Single-Sided PCB) or 0.5cm² (Dual-Sided PCB)
Wide Input Voltage Range: 3.1V to 20V
0.6V to 5.5V Output Voltage
Dual 5A or Single 10A Output Current
±1.5% Maximum Total Output Voltage Regulation Error Over Load, Line and Temperature
Current Mode Control, Fast Transient Response

External Frequency Synchronization
Multiphase Parallelable with Current Sharing
Output Voltage Tracking and Soft-Start Capability
Selectable Burst Mode^® Operation
Overvoltage Input and Overtemperature Protection
Power Good Indicators
6.25mm × 7.5mm × 3.22mm BGA package

Part Models: 2
1ku List Price: Starting From $14.03

Documentation

Data Sheet 1

LTM4705: 20V_IN, Dual 5A or Single 10A Step-Down DC/DC μModule Regulator Data Sheet (Rev.A) 10/26/2021

User Guide 1

DC3051A - Demo Manual (Rev.0) 10/26/2021

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
LTM4705EY#PBF	63-Lead BGA (6.25mm × 7.50mm × 3.22mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTM4705IY#PBF	63-Lead BGA (6.25mm × 7.50mm × 3.22mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

May 2, 2025 - 25_0014 LTM4705 - Die Thickness Change
		PCN25_0014_Form Material_Report Other
LTM4705EY#PBF	PRODUCTION
LTM4705IY#PBF	PRODUCTION
Jun 22, 2022 - 22_0137 LTM4705 Datasheet Update
		PCN22_0137_Form Material_Report Datasheet Specification Comparison
LTM4705EY#PBF	PRODUCTION
LTM4705IY#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:

LTM4705

LTpowerCAD

Design tools for the following parts are available in LTpowerCAD:

LTM4705

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.

Evaluation Kits

LTM4705 | 20VIN, Dual 5A Step-Down DC/DC μModule Regulator

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Product Details

Demonstration circuit 3051A features the LTM4705, a high efficiency dual 5A or single 10A μModule^® DC/DC regulator in a compact and low profile 6.25mm × 7.5mm × 3.22mm BGA package. The LTM4705 can take 3.1V to 20V input and generate 0.6V to 5.5V output (stepdown only). The DC3051A demo board is designed to take 6V_IN to 20V_IN to dual 5A jumper selectable outputs. The board operates by default at a fixed 1MHz and can be synchronized from 1MHz to 3MHz via the MODE/SYNC pin. With its high switching frequency and current mode architecture, a fast transient response to line and load changes is possible without sacrificing stability. The DC3051A can be used in forced continuous mode or pulse-skipping mode for low noise, or in Burst Mode^® operation for high efficiency at light loads. Please see the LTM4705 data sheet for more detailed information.

It is recommended to read the data sheet for the LTM4705 prior to making any changes to the DC3051A.

Resources

DC3051A - Demo Manual (Rev.0)
10/26/2021

DC3051A - Design Files
10/26/2021

DC3051A - Schematic
10/26/2021

Reference Designs

Altera FPGA

View Detailed Reference Design

Features and Benefits

Intel Agilex 7 F-Series devices target a wide range of applications across many markets. This series offers transceiver rates up to 58 Gbps, advanced DSP blocks supporting multiple precisions of fixed-point and floating-point operations, and high-performance crypto blocks.
Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications.
Our reference designs are supported by an intuitive design tool set and IP.
ADI provides supporting documentation including LTpowerPlanner and applicable LTpowerPlay configuration files to enable you to validate the power solution for your application seamlessly. Our team can provide samples and/or evaluation boards for quick validation that can speed time to market in the most complex applications.
For a complete list power designs and use cases, please contact your local FAE.