AAT1123

1MHz Step-Down Converter General Description The AAT1123 SwitchReg™ is a member of AnalogicTech's Total Power Management IC™ (TPMIC™) product family. It is a 1MHz step-down converter with an input voltage range of 2.7V to 5.5V and output as low as 0.6V. Its low supply current, small size, and high switching frequency make the AAT1123 the ideal choice for portable applications. The AAT1123 is available in either a fixed version with internal feedback or a programmable version with external feedback resistors. It can deliver up to 600mA of load current while maintaining a low 25µA no load quiescent current. The 1MHz switching frequency minimizes the size of external components while keeping switching losses low. The AAT1123 feedback and control delivers excellent load regulation and transient response with a small output inductor and capacitor. AAT1123 Features SwitchReg™ VIN Range: 2.7V to 5.5V VOUT Adjustable Down to 0.6V — Fixed or Adjustable Version Fast Turn-On Time (100µs Typical) 25µA No Load Quiescent Current Up to 97% Efficiency Output Current Up to 600mA 1MHz Switching Frequency Soft Start Over-Temperature Protection Current Limit Protection 100% Duty Cycle Low-Dropout Operation 0.1µA Shutdown Current SC70JW-8 Package Temperature Range: -40°C to +85°C The AAT1123 is designed to maintain high efficiency throughout the operating range and provides fast turn-on time. www.DataSheet4U.com The AAT1123 is available in a space-saving 2.0...