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ADP2105 Step-Down DC-to-DC Converter

ADP2105 Description

Data Sheet .
The ADP2105/ADP2106/ADP2107 are low quiescent current, synchronous, step-down dc-to-dc converters in a compact 4 mm × 4 mm LFCSP package.

ADP2105 Features

* Extremely high 97% efficiency Ultralow quiescent current: 20 μA 1.2 MHz switching frequency 0.1 μA shutdown supply current Maximum load current ADP2105: 1 A ADP2106: 1.5 A ADP2107: 2 A Input voltage: 2.7 V to 5.5 V Output voltage: 0.8 V to VIN Maximum duty cycle: 100% Smoothly transitions into low d

ADP2105 Applications

* Mobile handsets PDAs and palmtop computers Telecommunication/networking equipment Set top boxes Audio/video consumer electronics TYPICAL OPERATING CIRCUIT 0.1μF 10Ω VIN INPUT VOLTAGE = 2.7V TO 5.5V 10μF FB ON OFF 16 FB 1 EN 15 GND 14 13 IN PWIN1 LX2 12 OUTPUT VOLTAGE = 2.5V 2 GND PGND 11

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Step-Down DC-to-DC Converter Analog Devices
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