LTM4622A

RECOMMENDED FOR NEW DESIGNS

Dual Ultrathin 2A or Single 4A Step-Down DC/DC μModule Regulator

Data Sheet (Rev. D) Product Selection Table

Part Models: 5
1ku List Price: Starting From $8.42

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Overview

Complete Solution in <1cm²
Wide Input Voltage Range: 3.6V to 20V
1.5V to 12V Output Voltage
Dual 2A (3A Peak) or Single 4A 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 × 6.25mm × 1.82mm LGA and 6.25mm × 6.25mm × 2.42mm BGA Packages

The LTM4622A is a complete dual 2A step-down switching mode μModule^® (micromodule) regulator in a tiny ultrathin 6.25mm × 6.25mm × 1.82mm LGA and 2.42mm BGA packages. Included in the package are the switching controller, power FETs, inductor and support components. Operating over an input voltage range of 3.6V to 20V, the LTM4622A supports an output voltage range of 1.5V to 12V, set by a single external resistor. Its high efficiency design delivers dual 2A continuous, 3A peak, output current. Only a few ceramic input and output capacitors are needed.

The LTM4622A supports selectable Burst Mode operation and output voltage tracking for supply rail sequencing. Its high switching frequency and current mode control enable a very fast transient response to line and load changes without sacrificing stability.

Fault protection features include input overvoltage, output overcurrent and overtemperature protection.

The LTM4622A is available with SnPb (BGA) or RoHS compliant terminal finish.

Product Selection Guide
Part Number	V_IN Range	V_OUT Range	I_OUT
LTM4622	3.6V to 20V	0.6V to 5.5V	Dual 2.5A or Single 5A
LTM4622A	3.6V to 20V	1.5V to 12V	Dual 2A or Single 4A

Applications

General Purpose Point-of-Load Conversion
Telecom, Networking and Industrial Equipment
Medical Diagnostic Equipment
Test and Debug Systems

Part Models: 5
1ku List Price: Starting From $8.42

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
LTM4622AEV#PBF	25-Lead LGA (6.25mm x 6.25mm x 1.82mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4622AEY#PBF	25-Lead BGA (6.25mm x 6.25mm x 2.42mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4622AIV#PBF	25-Lead LGA (6.25mm x 6.25mm x 1.82mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4622AIY	25-Lead BGA (6.25mm x 6.25mm x 2.42mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4622AIY#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 29, 2024 - 24_0140 LTM4622A Datasheet Revision
		PCN24_0140_Form Material_Report Datasheet Specification Comparison
LTM4622AEV#PBF	PRODUCTION
LTM4622AEY#PBF	PRODUCTION
LTM4622AIV#PBF	PRODUCTION
LTM4622AIY	PRODUCTION
LTM4622AIY#PBF	PRODUCTION
Jul 21, 2021 - 21_0159 Ink Mark to Laser Mark Conversion for µModule
		PCN21_0159_Form Material_Report Delta Qualification Matrix
LTM4622AEV#PBF	PRODUCTION
LTM4622AEY#PBF	PRODUCTION
LTM4622AIV#PBF	PRODUCTION
LTM4622AIY	PRODUCTION
LTM4622AIY#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
LTM4622AEV#PBF	PRODUCTION
LTM4622AEY#PBF	PRODUCTION
LTM4622AIV#PBF	PRODUCTION
LTM4622AIY	PRODUCTION
LTM4622AIY#PBF	PRODUCTION
Jun 26, 2019 - 19_0116 Notification of Additional Assembly Location, ASE Korea for LTM4622/LTM4622A
		PCN19_0116_Form Material_Report Other Qualification Results Summary Marking Comparison
LTM4622AEV#PBF	PRODUCTION
LTM4622AEY#PBF	PRODUCTION
LTM4622AIV#PBF	PRODUCTION
LTM4622AIY	PRODUCTION
LTM4622AIY#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
Power System Management (PSM) & Sequencers 1
LTC2975	RECOMMENDED FOR NEW DESIGNS	4-Channel PMBus Power System Manager Featuring Accurate Input Current and Energy Measurement

Parts	Product Life Cycle	Description
LTM4622	RECOMMENDED FOR NEW DESIGNS	Dual Ultrathin 2.5A or Single 5A Step-Down DC/DC μModule Regulator
LTM4623	RECOMMENDED FOR NEW DESIGNS	Ultrathin 20V_IN, 3A Step-Down DC/DC μModule (Power Module) Regulator

Tools & Simulations

LTspice 1

LTM4622A Demo Circuit - Dual Step-Down µModule Regulator (4-20V to 5V @ 2A & 3.3V @ 2A)

Models for the following parts are available in LTspice:

LTM4622
LTM4622A

LTpowerCAD 1

LTM4622A Project - Dual Step-Down μModule Regulator (5.5-20V to 5V & 3.3V @ 2A)

Design tools for the following parts are available in LTpowerCAD:

LTM4622
LTM4622(INVERTING)
LTM4622A

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

LTM4622A Demo Board | Ultrathin Dual Buck μModule; 4V ≤ VIN ≤ 20V, VOUT1 = 5V @ 2A, VOUT2 = 3.3V @ 2A

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Product Details

Demonstration circuit 2568A features the LTM4622A μModule^® regulator, a tiny low profile high performance high efficiency dual step-down regulator. The LTM4622A has an operating input voltage range of 3.6V to 20V and is able to provide an output current of up to 2A for each channel. Each output’s voltage is programmable from 1.5V to 12V. The LTM4622A is a complete DC/DC point of load regulator in a low profile thermally enhanced 6.25mm × 6.25mm × 1.82mm LGA package requiring only a few input and output capacitors. Output voltage tracking is available through the TRACK/SS pin for supply rail sequencing. External clock synchronization is available through the MODE pin. For high efficiency at low load currents, the MODE pin jumper (JP3) selects the Burst Mode^® option for operation in less noise sensitive applications. The LTM4622A data sheet must be read in conjunction with this demo manual for working on or modifying demo circuit 2568A.