DC to DC Power Supplies (Converters)
DC-DC Controllers enhance power management for 40 nm devices.
Press Release Summary:
Supplied in 5 x 5 mm, 32-pin TQFN package and specified over -40 to +85°C range, MAX15048/MAX15049 offer 3 regulated output voltages and integrated tracking/sequencing to control core and I/O voltages. Synchronous step-down controllers meet tolerances of small-geometry logic devices. They drive external MOSFETs to deliver regulated 0.6-19 V output and up to 15 A of load current per output. Operating operate from 4.7-23 V input, devices support battery packs as well as 40 nm ASICs.
Original Press Release:
Three-Output DC-DC Controllers with Tracking/Sequencing Reduce Power-Management Cost for 40nm Logic Devices
Maxim's new buck controllers offer three regulated output voltages and integrated tracking/sequencing to seamlessly control core and I/O voltages.
SUNNYVALE, CA-Maxim Integrated Products (NASDAQ: MXIM) introduces the MAX15048/MAX15049, low-cost, three-output, synchronous step-down controllers with tracking (MAX15048) or sequencing (MAX15049) options. Designed to meet the tight tolerances of small-geometry logic devices, these controllers drive external MOSFETs to deliver a regulated 0.6V to 19V output voltage and up to 15A of load current per output. Additionally, integrated tracking/sequencing allows customers to seamlessly control core and I/O voltages. This combination of versatility, integration, and performance makes the MAX15048/MAX15049 well suited for a variety of high-reliability power-supply applications such as those in telecom, networking, storage, and server equipment.
The MAX15048/MAX15049 are precision engineered to eliminate external components and save costs. They operate from a wide 4.7V to 23V input range to support low-cost battery packs, as well as the latest 40nm ASICs. Each PWM section operates from a programmable switching frequency (200kHz to 1.2MHz). Operating at 1.2MHz and 120° out-of-phase increases the input capacitor ripple frequency to 3.6MHz. This significantly reduces the RMS input ripple current and, thus, the size of the input bypass capacitor. The MAX15048/MAX15049 integrate bootstrap diodes for additional system cost savings.
These devices feature digital soft-start/soft-stop for glitch-free power-up and power-down. Power-good circuitry monitors all three outputs and provides a signal to the system controller/processor when all outputs are within regulation to enable system-level monitoring. Integrated protection features include lossless valley-mode current limiting, hiccup-mode output short-circuit protection, and thermal shutdown.
The MAX15048/MAX15049 are offered in a thermally enhanced, 5mm x 5mm, 32-pin TQFN package, and are fully specified over the -40°C to +85°C extended temperature range. Prices start at $3.10 (1000-up, FOB USA).
An evaluation kit, the MAX15048EVKIT+, is available to expedite designs and is priced at $125.
Maxim Integrated Products is a publicly traded company that designs, manufactures, and sells high-performance semiconductor products. The Company was founded over 25 years ago with the mission to deliver innovative analog and mixed-signal engineering solutions that add value to its customers' products. To date, it has developed over 6300 products serving the industrial, communications, consumer, and computing markets.
Maxim reported revenue in excess of $1.6 billion for fiscal 2009. A Fortune 1000 company, Maxim is included in the Nasdaq 100, the Russell 1000, and the MSCI USA indices. For more information, go to www.maxim-ic.com.
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