LTM4603HV

PRODUCTION

6A, 28V_IN DC/DC μModule with PLL, Output Tracking and Margining

Part Models: 2
1ku List Price: Starting From $19.39

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Overview

Complete Switch Mode Power Supply
Wide Input Voltage Range: 4.5V to 28V
6A DC Typical, 8A Peak Output Current
0.6V to 5V Output Voltage
Output Voltage Tracking and Margining
Remote Sensing for Precision Regulation
Typical Operating Frequency: 1MHz
PLL Frequency Synchronization
1.5% Regulation
Current Foldback Protection (Disabled at Start-Up)
Pin Compatible with the LTM4601/LTM4601HV/LTM4603
Ultrafast Transient Response
Current Mode Control
Up to 93% Efficiency at 5V_IN, 3.3V_OUT
Programmable Soft-Start
Output Overvoltage Protection
RoHS Compliant Package with Gold Finish Pads (e4)
Small Footprint, Low Profile (15mm × 15mm × 2.82mm) Surface Mount LGA Package

The LTM4603HV is a complete 6A step-down switch mode DC/DC power supply with onboard switching controller, MOSFETs, inductor and all support components. The μModule^™is housed in a small surface mount 15mm × 15mm × 2.82mm LGA package. Operating over an input voltage range of 4.5 to 28V, the LTM4603HV supports an output voltage range of 0.6V to 5V as well as output voltage tracking and margining. The high efficiency design delivers 6A continuous current (8A peak). Only bulk input and output capacitors are needed to complete the design.

The low profile (2.82mm) and light weight (1.7g) package easily mounts on the unused space on the back side of PC boards for high density point of load regulation. The μModule can be synchronized with an external clock for reducing undesirable frequency harmonics and allows PolyPhase^® operation for high load currents.

A high switching frequency and adaptive on-time current mode architecture deliver a very fast transient response to line and load changes without sacrificing stability. An onboard remote sense amplifier can be used to accurately regulate an output voltage independent of load current.

Applications

Telecom and Networking Equipment
Servers
Industrial Equipment
Point of Load Regulation

Part Models: 2
1ku List Price: Starting From $19.39

Documentation

Data Sheet 1

LTM4603HV: 6A, 28VIN DC/DC μModule (Power Module) with PLL, Output Tracking and Margining Data Sheet 06/27/2014

User Guide 1

DC1083A-B Demo Manual 08/30/2011

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
LTM4603HVEV#PBF	118-Lead LGA (15mm x 15mm x 2.82mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTM4603HVIV#PBF	118-Lead LGA (15mm x 15mm x 2.82mm)	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
LTM4603HVEV#PBF	PRODUCTION
LTM4603HVIV#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
LTM4603HVEV#PBF	PRODUCTION
LTM4603HVIV#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
Circuit Monitors 1
LTC2960	RECOMMENDED FOR NEW DESIGNS	36V Nano-Current Two-Input Voltage Monitor
Oscillators 1
LTC6909	PRODUCTION	1 to 8 Output, Multiphase Silicon Oscillator with Spread Spectrum Modulation
Power System Management (PSM) & Sequencers 1
LTC2974	RECOMMENDED FOR NEW DESIGNS	4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
Protection Switches & Controllers 1
LTC4364	RECOMMENDED FOR NEW DESIGNS	Surge Stopper with Ideal Diode

Tools & Simulations

LTspice 1

LTM4603HV Demo Circuit - 6A 28Vin Step-Down uModule (20V to 1.8V @ 6A)

Models for the following parts are available in LTspice:

LTM4603
LTM4603-1
LTM4603HV

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

LTM4603HVEV Demo Board

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Product Details

Demonstration circuit DC1083A-B features the LTM4603HV, the high efficiency, high density step-down μModule^® regulator. The input voltage range is from 4.5V to 28V. The output voltage is jumper programmable from 0.6V to 5V. The rated load current is 6A, while derating is necessary for certain V_IN, V_OUT, and thermal conditions. Applying an external clock signal to the PLLIN pin forces the μModule regulator to operate at the same frequency.

Resources

DC1083A-B - Schematic
6/26/2014

DC1083A-B Demo Manual
8/30/2011

DC1083A-B Design Files
6/15/2010

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