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.
● 95% Peak efficiency
● 3MHz Fixed frequency operation
● 18µA Typical quiescent current
● Uses tiny multilayer inductors and capacitors
● Current mode architecture for fast load and line transient response
● 100% Duty cycle low dropout mode
● Internal synchronous rectifier
● Internal compensation
● Internal soft start
● Current overload protection
● Thermal shutdown protection
● 0.2µA Shutdown supply current
●ESD sensitive device, take proper precaution while handling the device.
