Product category:
Power Supply ICs and Controllers
News Release from: Advanced Analogic Technologies
Edited by the Electronicstalk Editorial
Team on 13 October 2006
Power management portfolio shows up in
Munich
At Electronica, Advanced analogueic Technologies will exhibit its total power management semiconductor solutions for mobile consumer electronic devices.
At Electronica, Advanced Analogic Technologies will exhibit its total power management semiconductor solutions for mobile consumer electronic devices, including smartphones, Bluetooth headsets, digital cameras, MP3 and portable media players, GPS navigation systems, notebook and laptop computers, PDAs, wireless cards, and handheld instruments Particularly, the company will feature new highly integrated power management ICs, the AAT2550/51 and AAT2830
This article was originally published on Electronicstalk on 16 Jun 2004 at 8.00am (UK)
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LDO handles big loads in portable kit
The AAT3239 is a new 500mA low-dropout (LDO) linear regulator for battery-operated portable applications.
These multifunction SystemPower products feature multiple integrated power management functions in space-efficient packages.
The AAT2550/51 are fully integrated total power solution ICs with two 1.4MHz step-down convertors plus a single-cell lithium-ion/polymer battery charger.
The step-down convertor input voltage range spans 2.7 to 5.5V with an output voltage from 0.6V to the input voltage.
Further reading
Convertor boosts efficiency for single-cell uses
The AAT1151 synchronous buck convertor can be used in a wide variety of portable applications powered by a single-cell lithium ion/polymer battery.
LDO and microprocessor reset come together
A novel high-performance LDO linear regulator is combined with a low-current microprocessor reset in half the space of two discrete devices.
Each convertor has independent input, enable, and feedback pins, and delivers up to 600mA load current.
The battery charger is a complete constant current/constant voltage linear charger.
The charging current is programmable via external resistor from 100mA to 1A.
They offer an integrated pass device, reverse blocking protection, high current accuracy and voltage regulation, charge status, and charge termination.
In addition to these standard features, the device offers over-voltage, over-current, and thermal protection.
Additionally, the AAT2551 enables the host system to charge its battery from a USB source in the minimum time possible via AnalogicTech's patent-pending charge reduction technology.
The AAT2830 is a total display solution IC for portable display applications.
Based on a trimode charge pump power engine, it is capable of delivering 600mA output current with individual driving circuits for six LED backlights (in a four LED main plus two LED subpanel arrangement), four photo flash LEDs, and one RGB.
AnalogicTech's AS2Cwire (Advanced Simple Serial Control) single-wire serial digital input is used to enable, disable, and set current for any of the three sets of outputs.
The maximum backlight current is set by an external resistor and can be programmed to sink current at 16 levels as a%age, up to a maximum of 30mA per channel.
The AAT2830 also delivers up to 600mA to photo flash LEDs through four individual channels, with excellent current match between channels.
A built-in flash timer function allows easy one-trigger system control.
The RGB output can be adjusted to handle up to 60mA, and the AS2Cwire signal can drive the RGB module in up to 4096 colour/intensity combinations.
AnalogicTech focuses on the application-specific power management needs of consumer, communications, and computing applications in these rapidly evolving devices.
AnalogicTech also develops and licenses device, process, package, and application-related technology.
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