AAT4900 Datasheet | Advanced Analogic Technologies

Buffered Power Half-Bridge General Description The AAT4900 Fast Switchä is a member of Analogic Tech’s Application Specific Power MOSFETä (ASPMä) product family. It is a Buffered Power Half-Bridge, consisting of low onresistance Power MOSFETs with integrated control logic. This device operates with inputs ranging from 2.7V to 5.5V, making it ideal for both 3V and 5V systems. The device is protected from shoot-through current with its own control circuitry. The AAT4900 is capable of very fast switching times and is ideal for use in high frequency DC to DC Converters. The quiescent supply current is a low 1m A (max) at 1MHz CLK frequency. In shutdown mode, the supply current decreases to 1µA max The AAT4900 is available in 5 pin SOT-23 specified over -40 to 85°C. Features - = - = - = - = - = - = Fast Switch 2.7V to 5.5V Input voltage range 120mΩ (typ) Switch RDS(ON) Low quiescent current - = 1µA (max) DC - = 1m A (max) at 1MHz Only 2.5V needed for Control Signal Input Temp range -40 to 85°C 5 pin SOT-23 package Applications - = - = High frequency DC/DC converters Low-side MOSFET gate driver Advanced Information Typical Applications DC/DC Converter Output Stage 2.7V to 5.5V Input Control Circuit (PWM Output) 4 CLK EN SOT-23 GND OUTPUT ENABLE Advanced Analogic Technologies, Inc. 1250 Oakmead Pkwy, Suite 310, Sunnyvale, CA 94086 (408)524-9684 Fax (408)524-9689 8-1 Buffered Power Half-Bridge...