Text version of the page

AAT4900

Buffered Power Half-Bridge General Description Features

FastSwitch

™ The AAT4900 FastSwitch is a member ofAnalogicTech's Application Specific Power MOSFET™ (ASPM™) product family. It is a buffered power half-bridge, consisting of low on resistance power MOSFETs with integrated control logic. This device operates with inputs ranging from 2.0V to 5.5V, making it ideal for 2.5V, 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/DC con- verters. The quiescent supply current is a low 4mA at 1MHz CLK frequency. In shutdown mode, the supply current decreases to less than 1µAmax. The AAT4900 is available in a Pb-free 5-pinSOT23 or 8-pin SC70JW package and is specified over the -40°C to +85°C temperature range. •2.0V to 5.5V Input Voltage Range •105m Ω (typ) Low Side Switch R
DS(ON) •130m Ω (typ) High Side Switch R
DS(ON) •Low Quiescent Current:—1 µ A(max) DC —4mAat 1MHz•Only 2.5V Needed for Control Signal Input •Break-Before-Make Shoot-Through Protection •Temperature Range: -40°C to +85°C •5-Pin SOT23 or 8-Pin SC70JW Package

Applications

•DC Motor Drive •High Frequency DC/DC Converters •MOSFETDriver

Typical Application

DC/DC Converter Output Stage

Control Circuit(PWM Output)

AAT4900

ENINLXCLKGNDENABLE 2.0V to 5.5V InputOUTPUT SOT23 4900.2006.05.1.3 1