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LTM4618 - 6A DC/DC μModule (Power Module) Regulator with Tracking and Frequency Synchronization

The LTM®4618 is a complete 6A output switch mode DC/DC power supply. Included in the package are the switching controller, power FETs, inductor and all support components. Operating over an input voltage range of 4.5V to 26.5V, the LTM4618 supports an output voltage range of 0.8V to 5V set by a single external resistor. Its high efficiency design delivers 6A continuous current (8A peak). Only a few input and output capacitors are needed.

High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The device supports frequency synchronization and output voltage tracking for supply rail sequencing. Burst Mode operation or pulseskipping mode can be selected for light load conditions.

Fault protection features include overvoltage protection, overcurrent protection and foldback current limit for short-circuit protection.

The LTM4618 is offered in 9mm × 15mm × 4.32mm LGA and 9mm × 15mm × 4.92mm BGA packages with RoHS compliant terminal finish.

Features Complete Standalone Power Supply Wide Input Voltage Range: 4.5V to 26.5V 6A DC Typical, 8A Peak Output Current 0.8V to 5V Output Output Voltage Tracking ±1.75% Maximum Total DC Error Current Mode Control/Fast Transient Response Phase-Lockable Fixed Frequency 250kHz to 780kHz On-Board Frequency Synchronization Selectable Burst Mode® Operation Power Good Voltage Indicator Output Overvoltage Protection Output Current Foldback Limiting 9mm × 15mm × 4.32mm LGA and 9mm × 15mm × 4.92mm BGA Packages Typical Application

Applications Telecom and Networking Equipment Servers Storage Cards ATCA Cards Industrial Equipment Point of Load Regulation Medical Systems Packaging

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