LTM4662

RECOMMENDED FOR NEW DESIGNS

Dual 15A or Single 30A DC/DC μModule Regulator

Data Sheet (Rev. B) Product Selection Table

Part Models: 5
1ku List Price: Starting From $33.84

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Overview

Dual 15A or Single 30A Output
Wide Input Voltage Range: 4.5V to 20V

2.375V_MIN with CPWR Bias

Output Voltage Range: 0.6V to 5.5V
±1.5% Maximum Total DC Output Error
Multiphase Current Sharing
Differential Remote Sense Amplifier, Each Channel
Current Mode Control/Fast Transient Response
Up to 96% Efficiency
Adjustable Switching Frequency (250kHz to 1MHz)

Frequency Synchronization
Overcurrent Foldback Protection
Output Overvoltage Protection
Internal or External Compensation
Built-In Temperature Monitor Diode
SnPb or RoHS Compliant Finish
Thermally Enhanced (11.25mm × 15mm × 5.74mm) BGA Package
Pin-Compatible with the LTM4646

The LTM4662 is a complete dual 15A output switching mode DC/DC power supply. Included in the package are the switching controller, power FETs, inductors, and all supporting components. Operating from an input voltage range of 4.5V to 20V, the LTM4662 supports two outputs each with an output voltage range of 0.6V to 5.5V, set by external resistors. Its high efficiency design delivers up to 15A continuous current for each output. Only a few input and output capacitors are needed.

The device supports frequency synchronization, multiphase operation, high efficiency light load operation and output voltage tracking for supply rail sequencing and has an on-board temperature diode per channel for device temperature monitoring. High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability.

Fault protection features include overvoltage and overcurrent protection. The power module is offered in a small footprint and thermally enhanced 11.25mm × 15mm × 5.74mm BGA package. The LTM4662 is available with SnPb or RoHS compliant terminal finish.

APPLICATIONS

Point-of-Load Power Supplies
Telecom and Networking Equipment
Industrial and Medical Equipment

Part Models: 5
1ku List Price: Starting From $33.84

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
LTM4662EY#PBF	88-Lead BGA (15mm x 11.25mm x 5.74mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4662IY	88-Lead BGA (15mm x 11.25mm x 5.74mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4662IY#PBF	88-Lead BGA (15mm x 11.25mm x 5.74mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4662MPY	88-Lead BGA (15mm x 11.25mm x 5.74mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4662MPY#PBF	88-Lead BGA (15mm x 11.25mm x 5.74mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Sep 13, 2022 - 22_0193 Laser Top Mark Conversion for uModule COP and TMSV_COP Packages
		PCN22_0193_Form Material_Report
LTM4662EY#PBF	PRODUCTION
LTM4662IY	PRODUCTION
LTM4662IY#PBF	PRODUCTION
Aug 20, 2021 - 20_0311 Supplier Material Change for µModule
		PCN20_0311_Form Material_Report Qualification Results Summary
LTM4662EY#PBF	PRODUCTION
LTM4662IY	PRODUCTION
LTM4662IY#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
LTM4662EY#PBF	PRODUCTION
LTM4662IY	PRODUCTION
LTM4662IY#PBF	PRODUCTION

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

Software Resources

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Tools & Simulations

LTspice 1

LTM4662 Demo Circuit - Dual High Efficiency Buck Regulator (4.5-20V to 1.2V @ 15A & 1.5V @ 15A)

Models for the following parts are available in LTspice:

LTM4662

LTpowerCAD 1

LTM4662 Project - DC2527A-A 4.5-20Vin to 1.2Vo1/15A, 1.5Vo2/15A, 350kHz

Design tools for the following parts are available in LTpowerCAD:

LTM4662

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

LTM4662 Demo Board | 4.5V ≤ Vin ≤ 20V, Vout1=1.2V@15A, Vout2 = 1.5V@15A

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Product Details

Demonstration circuit DC2527A-A features the LTM4662EY, a dual 15A or single 30A high efficiency, switch mode step-down power µModule regulator. The input voltage range is from 4.5V to 20V. With CPWR bias, input voltage can be as low as 2.375V. The output voltage range is 0.6V to 5.5V. Derating is necessary for certain V_IN, V_OUT, frequency and thermal conditions. The DC2527A-A offers the TRACK/SS pin allowing the user to program output tracking or soft-start period. The board operates in continuous conduction mode in heavy load conditions. For high efficiency at low load currents, the MODE_PLLIN jumper can select discontinuous conduction mode. MODE_PLLIN pin also allows the LTM4662 to synchronize to an external clock signal (between 250kHz and 1MHz). DC2527A-A has the option of choosing both internal and external compensation circuit for LTM4662. Tying the PHASMD pin to different pins generates certain phases of CLKOUT and Channel 2. The LTM4662 data sheet must be read in conjunction with this demo manual prior to working on or modifying demo circuit DC2527A-A.