Product category: Power Supply ICs and Controllers
News Release from: Maxim Integrated Products | Subject: MAX8671X
Edited by the Electronicstalk Editorial Team on 16 November 2007
Five in one for complete power
management
Three 2MHz step-down DC/DC convertors and two low-quiescent-current linear regulators combine to produce five regulated output voltages.
Available now from Maxim Integrated Products, the MAX8671X is a highly integrated power-management IC that provides a single-cell, lithium-ion (Li+)/lithium-polymer (Li-poly) charger with proprietary Smart Power Selector circuitry that seamlessly distributes power within the system To reduce BOM cost, the MAX8671X integrates three 2MHz step-down DC/DC convertors and two low-quiescent-current linear regulators that are capable of providing five regulated output voltages
This article was originally published on Electronicstalk on 27 Aug 2002 at 8.00am (UK)
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The MAX8671X's Smart Power Selector circuitry efficiently distributes power between a USB/AC-adapter source, battery, and system load.
When external power is connected, the Smart Power Selector allows the system to operate with no battery or a deeply discharged battery.
It automatically switches the system load from the battery and makes the best use of limited USB or adapter power while charging the battery from input power not used by the system.
Featuring 16V-tolerant, dual (USB and AC/DC) power inputs, the MAX8671X supports end products with dual or single power connectors.
All necessary power switches and current-sense circuitry are included on the chip - no external MOSFETs are required.
The Smart Power Selector also provides thermal-limiting circuitry that reduces the battery-charge rate to prevent the charger from overheating.
The MAX8671X is available in a thermally enhanced space-saving 5 x 5mm 40-pin TQFN package that is fully specified over the -40 to +85C extended temperature range.
Prices start at US $2.95 (1000-up).
An evaluation kit is available to speed designs.
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