Many handheld devices are using a single-cell Li+ battery, and they demand a simple and economic charging solution. A cradle charger is one choice and it is getting more attention from system design engineers because they do not need to worry about built-in charging logic in their handheld devices. The cradle charger provides a complete standalone Li+ charger solution.
This application note describes an inductorless and virtually lossless single-cell Li+ cradle charger using a low-cost linear adapter.
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