Charger, converter and regulator combined in tiny package simplifies portable design
18 October 2006Power Electronics / Power Management
Surveillance
Training & Education
AnalogicTech claims its AAT2554 is the industry’s first power management IC to combine a 500 mA battery charger, 250 mA step-down converter, and 300 mA low dropout (LDO) linear regulator in a tiny 3 x 4 mm package.
Part of AnalogicTech's rapidly expanding SystemPower product family, this multifunction device offers designers of ultra-low-power products a highly compact power management solution that reduces product footprint and design complexity.
All three functions are optimised for ultra-low-power applications using a single-cell Lithium-ion battery as a power source. The battery charger operates across an input voltage of 4 V to 6,5 V, while the step-down converter and LDO operate across a 2,7 V to 5,5 V input range. As a complete constant-current/constant-voltage linear device, the battery charger delivers a programmable constant current up to 500 mA. It features reverse blocking protection and high current accuracy, as well as voltage regulation, charge status, and charge termination functions.
Using a high, 1,5 MHz switching frequency, the step-down converter also helps minimise system footprint by supporting the use of extremely small external components. The converter functions using an inductor of less than 1 mm in height, while delivering 250 mA output current with efficiency as high as 96%, says the company.
The LDO integrated into the AAT2554 can supply up to 300 mA output current. It features fast line and load transient response and a low 70 μA quiescent current. To ensure safe device operation, the AAT2554 also features short-circuit, over-temperature, and current limit protection circuits.
A growing number of new portable electronic products, such as Bluetooth headsets and handheld GPS devices, operate from a single Lithium-ion cell and must efficiently charge the battery and power a small microprocessor, its I/O, and other analog circuitry.
The AAT2554 comes in a Pb-free, 16-pin, 3 x 4 mm TDFN package, specified over -40 to +85°C.
For more information contact Stephen Delport, Hi-Q Electronics, +27 (0)21 595 1307, [email protected]
Finding value for money with your IoT battery Uniross Batteries
Power Electronics / Power Management
Designing an IoT application involves a lot of choices. Designers are looking for performance and quality, but need to balance those alongside a low Total Cost of Ownership.
Read more...Five signs your storage is holding you back
Infrastructure Surveillance
In the drive for business growth, organisations across South Africa are investing heavily in talent, applications, and strategy. Yet the foundational technology that underpins every digital interaction - data storage - is often overlooked.
Read more...Dahua expands wireless 4G security monitoring
Products & Solutions Surveillance Smart Home Automation
Dahua Technology has launched a new wireless 4G security camera under its WITHS series, designed to deliver simplified deployment, continuous monitoring, and dependable performance in remote and power-limited environments.
Read more...Smart port monitoring and automated container tracking LD Africa
AI & Data Analytics Surveillance Logistics (Industry)
A leading shipping port set out to improve visibility, security, and operational efficiency across its site, turning to an advanced monitoring solution powered by Axxon PSIM.
Read more...Powering the IoT Uniross Batteries
Power Electronics / Power Management
Choosing the right battery is not simply a technical detail, but a defining factor in the longevity and cost-effectiveness of any IoT deployment.
Read more...The move to DC infrastructure IOT Electronics
Power Electronics / Power Management
The shift toward direct current infrastructure in data centres is accelerating as operators pursue higher efficiency, improved reliability, and stronger alignment with renewable energy goals.
Read more...Power inductor for automotive applications Würth Elektronik eiSos
Power Electronics / Power Management
The WE-MXGA inductor features RDC values up to 25% lower and a saturation current up to 47% higher compared to other components currently available on the market.
Read more...High-performance DC-DC converter Conical Technologies
Power Electronics / Power Management
With a wide 9 - 40 V DC input range, the Claf Power DWHB400-F24xxN series is a high-performance DC-DC converter family ideally suited for 12 V and 24 V battery-based systems including vehicles, off-grid installations, and distributed power architectures.
Read more...DC-DC converters for next-generation IoT iCorp Technologies
Power Electronics / Power Management
AIPUPOWER’s K78XXJT-500R3 and K78XXJT-500R3-LB give designers a compact, high-efficiency power option for battery-powered and space-constrained systems, combining up to 96% efficiency with no-load input current as low as 0,2 mA.
Read more...240 W in compact form factor Brabek
Power Electronics / Power Management
The cost-effective and reliable RECOM RACPRO1-S240E DIN-rail mount AC-DC series is only 125 x 139 mm and 39 mm wide, yet provides 240 W output.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version