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]
Organisations fear AI-driven cyberattacks, but lack key defences Kaspersky
Information Security News & Events Training & Education
A recent Kaspersky study reveals that businesses are increasingly worried about the growing use of artificial intelligence in cyberattacks, with 56% of surveyed companies in South Africa reporting a rise in cyber incidents over the past year.
Read more...Wine farm turns to solar installation for power Current Automation
Power Electronics / Power Management
Slanghoek Wine farm opted into a power purchase agreement to lower overall electricity costs and enter a true sustainable future, with a price-competitive edge on lower running costs.
Read more...Industrial PSU family Brabek
Power Electronics / Power Management
The RACPRO1 family of PSUs supports a universal DC input voltage range from 430 to 850 V DC, allowing the parts to support renewable energy and microgrid applications.
Read more...Integrated POL voltage regulators EBV Electrolink
Power Electronics / Power Management
Infineon’s TDA38807 and TDA38806 are their highest density high-efficiency integrated point-of-load (IPOL) solutions for smart enterprise systems.
Read more...ONVIF launches new online learning initiative
Training & Education Surveillance News & Events
ONVIF has released the first course in a new online learning initiative designed to promote greater knowledge and understanding of ONVIF's workings. The first “Introduction to ONVIF” course is now available.
Read more...Hi-Rel quarter-brick converters Accutronics
Power Electronics / Power Management
Gaia Converter’s quarter-brick series DC-DC power modules provides output power levels ranging from 75 to 250 W in fixed output voltages.
Read more...1700 V GaN Switcher IC Future Electronics
Power Electronics / Power Management
Power Integrations has introduced a new member of its InnoMux-2 family of single-stage regulated multi-output offline power supply ICs, the industry’s first 1700 V gallium nitride switch.
Read more...2025 Southern Africa OSPAs entries now open Technews Publishing
Editor's Choice News & Events Training & Education
Entries are now open for the 2025 Southern Africa Outstanding Security Performance Awards (OSPAs). The OSPAs are designed to be both independent and inclusive, providing an opportunity for outstanding performers, to be recognised and their success to be celebrated.
Read more...Elvey to distribute Tiandy Elvey Security Technologies
Editor's Choice Surveillance News & Events
Tiandy’s presence in South Africa was boosted in November with the announcement that Elvey Security Technologies will distribute a broad range of Tiandy equipment through its channel partners and provide project assistance.
Read more...Dahua achieves international cybersecurity standards Dahua Technology South Africa
Information Security Surveillance
Dahua Technology has received the Common Criteria (ISO/IEC 15048) EAL 3+ certificate, along with ISO/IEC 27001 for Information Security Management Systems, ISO/IEC 27701 for Privacy Information Management Systems, and CSA STAR certifications.
printer friendly version