ADP2108AUJZ-3.3-R7

The ADP2108AUJZ-3.3-R7 is a High Efficient Step-down DC-to-DC Converter that uses a proprietary, high speed current mode, constant frequency PWM control scheme for excellent stability and transient response. To ensure the longest battery life in portable applications, the converter has a power save mode that reduces the switching frequency under light load conditions. The ADP2108 runs on input voltages of 2.3 to 5.5V, which allows for single lithium or lithium polymer cell, multiple alkaline or NiMH cell, PCMCIA, USB and other standard power sources. The maximum load current of 600mA is achievable across the input voltage range. The step-down converter is available in fixed output voltage of 3.3V. All versions include an internal power switch and synchronous rectifier for minimal external part count and high efficiency. It has an internal soft start and is internally compensated.