LTM4661

RECOMMENDED FOR NEW DESIGNS

15V, 4A Step-Up μModule Regulator

Data Sheet (Rev. A) Product Selection Table

Part Models: 3
1ku List Price: Starting From $8.22

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Overview

Complete Solution in <1cm² (Single-Sided PCB) or 0.5cm² (Dual-Sided PCB)
Input Voltage Range: 1.8V to 5.5V, Down to 0.7V After Start-Up
Output Voltage Range: 2.5V to 15V
4A Switch Current
Dual Phase Operation
±3% Maximum Total DC Output Voltage Regulation Over Load, Line and Temperature
Output Disconnect in Shut Down
Inrush Current Limit
External Frequency Synchronization
Selectable Burst Mode^® Operation
Output Overvoltage and Overtemperature Protection
6.25mm × 6.25mm × 2.42mm BGA package

The LTM4661 is a synchronous step-up switching mode μModule^® (power module) regulator in a 6.25mm × 6.25mm × 2.42mm BGA package. Included in the package are the switching controller, power FETs, inductor and all support components. Operating over an input voltage of 1.8V to 5.5V, down to 0.7V after start-up, the LTM4661 regulates an output voltage of 2.5V to 15V set by an external resistor. It provides up to 4A switch current. Only bulk input and output capacitors are needed.

The LTM4661 1MHz switching frequency and dual phase single output architecture enable fast transient response to line and load changes and a significant reduction of output ripple voltage. It supports frequency synchronization, PolyPhase^® operation and selectable Burst Mode operation. The LTM4661 features a true output disconnect during shutdown and inrush current limit at start-up. It also has short-circuit, overvoltage and overtemperature protection.

The LTM4661 is Pb-free and RoHS compliant.

Applications

RF Microwave Power Amplifiers
Battery Powered DC Motors
3.3V Bus Telecom Transceivers

Part Models: 3
1ku List Price: Starting From $8.22

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
LTM4661EY#PBF	25-Lead BGA (6.25mm x 6.25mm x 2.42mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4661IY	25-Lead BGA (6.25mm x 6.25mm x 2.42mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4661IY#PBF	25-Lead BGA (6.25mm x 6.25mm x 2.42mm)	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
LTM4661EY#PBF	PRODUCTION
LTM4661IY	PRODUCTION
LTM4661IY#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
LTM4661EY#PBF	PRODUCTION
LTM4661IY	PRODUCTION
LTM4661IY#PBF	PRODUCTION

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

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Protection Switches & Controllers 1
LTC4361-1 LTC4361-2		Overvoltage/Overcurrent Protection Controller

Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LTM4661

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

LTM4661EY Demo Board | 1.8V-5.5V Input, Synchronous Step-Up μModule Regulator

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Product Details

Demonstration circuit 2569A is ultrathin step-up μModule regulator featuring the LTM4661. The DC2569A operates over 1.8V to 5.5V input and it generates 12V, 1A output from 5V input. Also, the LTM4661 has precision voltage reference, which can generate output voltage with 3% tolerance over the full operating conditions. The 1MHz switching frequency operation results in small and efficient circuit. The converter operates with only one phase in burst mode and achieves over 90% efficiency with 100mA load. The demonstration circuit can be easily modified to generate different output voltages.