LTM4634

RECOMMENDED FOR NEW DESIGNS

Triple Output 5A/5A/4A Step-Down DC/DC μModule^® (Power Module) Regulator

Data Sheet Product Selection Table

Part Models: 3
1ku List Price: Starting From $42.32

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Part Details

Three Independent High Efficiency Regulator Channels
I_OUT1,2 = 5A, I_OUT3 = 4A
Input Voltage Range: 4.75V to 28V
Independent V_IN for Each Channel
V_OUT1,2 Voltage Range: 0.8V to 5.5V
V_OUT3 Voltage Range: 0.8V to 13.5V
±1.5% Maximum Total DC Output Error
Current Mode Control/Fast Transient Response
Frequency Synchronization
Output Overvoltage and Overcurrent Protection
PolyPhase^® Operation with Current Sharing
General Purpose Temperature Monitors
Soft-Start/Voltage Tracking
Power Good Monitors
SnPb or RoHS Compliant Finish
15mm × 15mm × 5.01mm BGA Package

Part Models: 3
1ku List Price: Starting From $42.32

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
LTM4634EY#PBF	144-Lead BGA (15mm x 15mm x 5.01mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTM4634IY	144-Lead BGA (15mm x 15mm x 5.01mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTM4634IY#PBF	144-Lead BGA (15mm x 15mm x 5.01mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Nov 20, 2023 - 23_0180 New Tray Design for BGA Package
		PCN23_0180_Form Material_Report Detailed Change Description
LTM4634EY#PBF	PRODUCTION
LTM4634IY	PRODUCTION
LTM4634IY#PBF	PRODUCTION
Nov 8, 2021 - 20_0245 Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)
		PCN20_0245_Form Material_Report Delta Qualification Matrix Other Qualification Results Summary
LTM4634EY#PBF	PRODUCTION
LTM4634IY	PRODUCTION
LTM4634IY#PBF	PRODUCTION
Sep 10, 2021 - 21_0201 LTM4633/LTM4634 Notification of Qualification of New Mold Compound and Substrate Change
		PCN21_0201_Form Material_Report Qualification Results Summary
LTM4634EY#PBF	PRODUCTION
LTM4634IY	PRODUCTION
LTM4634IY#PBF	PRODUCTION
Jul 21, 2021 - 21_0159 Ink Mark to Laser Mark Conversion for µModule
		PCN21_0159_Form Material_Report Delta Qualification Matrix
LTM4634EY#PBF	PRODUCTION
LTM4634IY	PRODUCTION
LTM4634IY#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
LTM4634EY#PBF	PRODUCTION
LTM4634IY	PRODUCTION
LTM4634IY#PBF	PRODUCTION
Feb 5, 2020 - 20_0127 Supplier Material Change for µModule
		PCN20_0127_Form Material_Report Qualification Results Summary
LTM4634EY#PBF	PRODUCTION
LTM4634IY	PRODUCTION
LTM4634IY#PBF	PRODUCTION
Jul 25, 2019 - 19_0170 Notification of Qualification of New Mold Compound for the LTM4634 µModule Regulator
		PCN19_0170_Form Material_Report Qualification Results Summary
LTM4634EY#PBF	PRODUCTION
LTM4634IY	PRODUCTION
LTM4634IY#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
Digital Power System Managers 1
LTC2974	RECOMMENDED FOR NEW DESIGNS	4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement

Tools & Simulations

LTspice 1

LTM4634 Demo Circuit - Triple 5A/5A/4A µModule Buck Regulator (4.8-28V to 1.0V, 3.3V @ 5A & 12.0V @ 4A)

Models for the following parts are available in LTspice:

LTM4634

LTpowerCAD 1

LTM4634 Project - Triple Output Step-Down μModule Regulator (13-28V to 1V @ 5A, 3.3V @ 5A, 12V @ 4A)

Design tools for the following parts are available in LTpowerCAD:

LTM4634

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

LTM4634 Demo Board | Triple, 4.75V ≤ VIN ≤ 28V, VOUT1/VOUT2 = 0.8V to 5.5V @ 5A, VOUT3 = Up to 13.5V @ 4A

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Product Details

Demonstration circuit 2121A features the LTM4634, a high efficiency, triple 5A/5A/4A step-down power μModule regulator. The input voltage range is from 4.75V to 28V. The output voltage range is 0.8V to 5.5V for Channel 1 and Channel 2, 0.8V to 13.5V for Channel 3. Derating is necessary for certain V_IN, V_OUT, frequency and thermal conditions. The DC2121A offers access to the TK/SS pins allowing the user to program output tracking or soft-start period. The board operates in continuous conduction mode in heavy load conditions.

Resources

DC2121A - Design Files
10/20/2014

DC2121A - Schematic
10/20/2014

DC2121A - Demo Manual
10/20/2014

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