ADP2109

The ADP2109 is designed as one kind of compact 600 mA, 3 MHz, step-down converter device that can be used in (1)PDAs and palmtop computers; (2)Wireless handsets; (3)Digital audio, portable media players; (4)Digital cameras, GPS navigation units applications. And this device is available in fixed output voltages of 1.8 V, 1.5 V, 1.2 V, and 1.0 V.

Features of the ADP2109 are:(1)Peak efficiency: 95%; (2)Discharge switch function; (3)Fixed frequency operation: 3 MHz; (4)Typical quiescent current: 18 A; (5)Maximum load current: 600 mA; (6)Input voltage: 2.3 V to 5.5 V; (7)Uses tiny multilayer inductors and capacitors; (8)Current mode architecture for fast load and line transient response; (9)100% duty-cycle low dropout mode; (10)Internal synchronous rectifier; (11)Internal compensation; (12)Internal soft start; (13)Current overload protection; (14)Thermal shutdown protection; (15)Shutdown supply current: 0.2 A; (16)5-ball WLCSP.

The absolute maximum ratings of the ADP2109 can be summarized as:(1)VIN, EN: -0.4 V to +6.5 V;(2)FB, SW to GND: -1.0 V to (VIN + 0.2 V);(3)Operating Ambient Temperature Range: -40°C to +85°C;(4)Operating Junction Temperature Range: -40°C to +125°C;(5)Storage Temperature Range: -65°C to +150°C;(6)Soldering Conditions: JEDEC J-STD-020. If you want to know more information about the ADP2109, please download the datasheet in www.seekic.com or www.chinaicmart.com .