LTM4651

RECOMMENDED FOR NEW DESIGNS

EN55022B Compliant 58V, 24W Inverting-Output DC/DC μModule Regulator

Data Sheet (Rev. A) Product Selection Table

Part Models: 3
1ku List Price: Starting From $17.37

Viewing:

Overview

Complete Low EMI Switch Mode Power Supply
EN55022 Class B Compliant
Wide Input Voltage Range: 3.6V to 58V
Up to 4A Output Current
- 24W Output from 12V_IN to –24V_OUT, P_LOSS = 5W, T_A = 60°C, t_RISE = 60°C, 200LFM
Output Voltage Range: –26.5V ≤ V_OUT– ≤ –0.5V
- Safe Operating Area: V_IN + |V_OUT–| ≤ 58V
±1.67% Total DC Output Voltage Error Over Line, Load and Temperature (–40°C to 125°C)

Parallel and Current Share with Multiple LTM4651s
Constant-Frequency Current Mode Control
Frequency Synchronization Range: 250kHz to 3MHz
Power Good Indicator and Programmable Soft-Start
Overcurrent/Overvoltage/Overtemperature Protection
15mm × 9mm × 5.01mm BGA Package

The LTM4651 is an ultralow noise, 58V, 24W DC/DC μModule^® inverting topology regulator. It regulates a negative output voltage (V_OUT^–) from a positive input supply voltage (V_IN), and is designed to meet the radiated emissions requirements of EN55022. Conducted emission requirements can be met by adding standard filter components.

Included in the package are the switching controller, power MOSFETs, inductor, filters and support components. The LTM4651 can regulate V_OUT^– to a value between –0.5V and –26.5V, provided that its input and output voltages adhere to the safe operating area criteria of the LTM4651: V_IN + |V_OUT^–| ≤ 58V. A switching frequency range of 250kHz to 3MHz is supported (400kHz default) and the module can synchronize to an external clock.

Despite being an inverting topology regulator, no level shift circuitry is needed to interface to the LTM4651’s RUN, PGOOD or CLKIN pins; those pins are referenced to GND.

The LTM4651 is offered in a 15mm × 9mm × 5.01mm BGA package with SnPb or RoHS compliant terminal finish.

Applications

Avionics, Industrial Control and Test Equipment
Video, Imaging and Instrumentation
48V Telecom and Network Power Supplies
RF Systems

Part Models: 3
1ku List Price: Starting From $17.37

Documentation

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
LTM4651EY#PBF	77-Lead BGA (9mm x 15mm x 5.01mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4651IY	77-Lead BGA (9mm x 15mm x 5.01mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4651IY#PBF	77-Lead BGA (9mm x 15mm x 5.01mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jul 21, 2021 - 21_0159 Ink Mark to Laser Mark Conversion for µModule
		PCN21_0159_Form Material_Report Delta Qualification Matrix
LTM4651EY#PBF	PRODUCTION
LTM4651IY	PRODUCTION
LTM4651IY#PBF	PRODUCTION
Feb 28, 2020 - 20_0123 Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia
		PCN20_0123_Form Material_Report Test Correlation Report Other Qualification Results Summary
LTM4651EY#PBF	PRODUCTION
LTM4651IY	PRODUCTION
LTM4651IY#PBF	PRODUCTION
Feb 5, 2020 - 20_0127 Supplier Material Change for µModule
		PCN20_0127_Form Material_Report Qualification Results Summary
LTM4651EY#PBF	PRODUCTION
LTM4651IY	PRODUCTION
LTM4651IY#PBF	PRODUCTION
Apr 11, 2019 - 19_0067 Notification of Wafer Fab Location Change for 0.35 BCD Process
		PCN19_0067_Form Material_Report Delta Qualification Matrix Qualification Results Summary Detailed Parts List Other
LTM4651EY#PBF	PRODUCTION
LTM4651IY	PRODUCTION
LTM4651IY#PBF	PRODUCTION

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

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LTM4651

LTpowerCAD

Design tools for the following parts are available in LTpowerCAD:

LTM4651

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

LTM4651 Demo Board | EN55022B Compliant 58V, 24W Inverting-Output DC/DC μModule Regulator

Buy Now View Details

Product Details

Demonstration circuit 2328A is an inverting buck-boost converter with 12V to 34V input voltage, –24V output voltage and max 2A output current capability, which features the LTM4651Y. The LTM4651 is an ultralow noise, 58V, 24W inverting-topology DC/DC µModule regulator. It is designed to meet the radiated emissions requirement of EN55022B. A switching frequency range of 250kHz to 3MHz is supported and the module can synchronize to an external clock. The LTM4651 data sheet must be read in conjunction with this demo manual prior to working on or modifying demo circuit DC2328A.

Resources

DC2328A - Schematic
8/11/2017

DC2328A - Design Files
8/11/2017

DC2328A - Demo Manual
8/11/2017

Latest Discussions

1 Years Ago

2 Years Ago