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ADP2108 step-down converter

Analog Devices expanded its family of miniature switching regulators with a new 3-MHz step-down dc-to-dc converter optimized for better energy efficiencies in battery-powered portable devices.
The ADP2108 runs on input voltages of 2.3 V to 5.5 V, 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 600 mA is achievable across the input voltage range.
The ADP2108 is available in fixed output voltages of 3.3 V, 3.0 V, 2.5 V, 2.3 V, 1.82 V, 1.8 V, 1.5 V, 1.3 V, 1.2 V, 1.1 V, and 1.0 V.
Main features of ADP2108 are : Peak efficiency: 95% , 3 MHz fixed frequency operation , Typical quiescent current: 18 μA , Maximum load current: 600 mA , Input voltage: 2.3 V to 5.5 V , 100% duty cycle low dropout mode , Internal synchronous rectifier , Internal compensation , Internal soft start , Current overload protection , Thermal shutdown protection .
ADP2108 can be used in power supply applications for devices like : PDAs and palmtop computers , Wireless handsets , Digital audio, portable media players , Digital cameras, GPS navigation units .
ADP2108 step-down converter

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