AAT2550 Total Power Solution for Portable Applications
The AAT2550 is a fully integrated total power solution with two step-down converters plus a single-cell lithium-ion / polymer battery charger. The step-down converter input voltage range spans 2.7V to 5.5V, making the AAT2550 ideal for systems powered by single-cell lithium- ion/polymer batteries. The battery charger is a complete constant current/ constant voltage linear charger. It offers an integrated pass device, reverse blocking protection, high current accuracy and voltage regulation, charge status, and charge termination. The charging current is programmable via external resistor from 100mA to 1A. In addition to these standard features, the device offers over-voltage, over-current, and thermal protection. The two step-down converters are highly integrated, operating at a switching frequency of 1.4MHz, minimizing the size of external components while keeping switching losses low. Each converter has independent input, enable, and feedback pins. The output voltage ranges from 0.6V to VIN. Each converter is capable of delivering up to 600mA of load current. The AAT2550 is available in a Pb-free, space-saving, thermally-enhanced QFN44-24 package and is rated over the -40°C to +85°C temperature range.
技术特性
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应用领域 APPLICATION
订购信息 Ordering Information
AAT2550 典型应用
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| 应用技术支持与电子电路设计开发资源下载 | 版本信息 | 大小 |
| AAT2550 数据资料DataSheet下载:pdf | Rev.V2 | 2 页 |
