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Power-supply ICs and controllers

Linear Technology offers LTM4630 dual-output DC/DC µmodule step-down regulator

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By Linear Technology now part of Analog Devices on 20th September 201315th December 2015

Product Details Supplier Info More products

Download document:

LTM4630 data sheet - .PDF file.

Linear Technology has announced the release of the LTM4630 — a dual 18A-per-output or single 36A-output DC/DC µmodule step-down regulator capable of delivering up to 144A when four devices are current shared. Suitable applications include mezzanine boards such as ATCA, µTCA, point-of-load regulation for new processors, ASICs, and the recently introduced <28nm FPGAs as well as high-speed SERDES.

The LTM4630 is a complete DC/DC regulator system in a 16mm x 16mm x 4.41mm LGA package, which includes inductors, MOSFETs, DC/DC controller and compensation circuitry.

The company says that the excellent heat dissipation, scalable and high-output power capability, small footprint and low-profile package of the LTM4630 enable system designers to lay out more densely populated boards.

Without requiring a printed circuit board layout changes, system designers can interchange four pin-compatible µmodule regulators to obtain different power levels. Each product’s output operates 180º out of phase to minimise both output ripple (when outputs share current) and input ripple, resulting in fewer and smaller capacitors.

Key features and specifications

Dual 18A or single 36A output
Input voltage range: 4.5V to 15V
Output voltage range: 0.6V to 1.8V
±1.5% maximum total DC output error over line, load and temperature
Differential remote sense amplifier
Current-mode control/fast transient response
Adjustable switching frequency
Overcurrent foldback protection
Multiphase parallel current sharing with multiple LTM4630s up to 144A
Frequency synchronisation
Internal temperature monitor
Pin-compatible with the LTM4620 and LTM4620A (dual 13A, single 26A) and LTM4628 (dual 8A, single 16A)

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More information

Linear Technology now part of Analog Devices

Analog Devices (NASDAQ: ADI) is the leading global high-performance analog technology company dedicated to solving the toughest engineering challenges.

Contact Supplier Visit our website 01628 477066

About Analog Devices
Analog Devices (NASDAQ: ADI) is the leading global high-performance analog technology company dedicated to solving the toughest engineering challenges. We enable our customers to interpret the world around us by intelligently bridging the physical and digital with unmatched technologies that sense, measure, power, connect and interpret. Visit http://www.analog.com

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