Datasheet4U Logo Datasheet4U.com

AAT1145 Datasheet 1.2a Step-down Converter

Manufacturer: Advanced Analogic Technologies

Overview: PRODUCT DATASHEET AAT1145 SwitchRegTM General.

General Description

The AAT1145 SwitchReg™ is a 1.5MHz constant frequency current mode PWM step-down converter.

It is ideal for portable equipment requiring very high current up to 1.2A from single-cell Lithium-ion batteries while still achieving over 90% efficiency during peak load conditions.

The AAT1145 also can run at 100% duty cycle for low dropout operation, extending battery life in portable systems while light load operation provides very low output ripple for noise sensitive applications.

Key Features

  • Input Voltage Range: 2.5V to 5.5V Output Voltages from 0.6V to VIN 1.2A Output Current High Efficiency: Up to 95% 1.5MHz Constant Switching Frequency Low RDS(ON) Internal Switches: 0.15Ω Allows Use of Ceramic Capacitors Current Mode Operation for Excellent Line and Load Transient Response Short-Circuit and Thermal Fault Protection Soft Start Low Dropout Oper.

More Datasheets from Advanced Analogic Technologies

Part Number Description
AAT1143 1MHz 400mA Step-Down Converter
AAT1100 TRIPLE-CHANNEL PWM CONTROLLER
AAT1101 TRIPLE OUTPUT TFT LCD PWM CONTROLLER
AAT1106 600mA Step-Down Converter
AAT1109A ONE-CHANNEL BOOST SWITCHING REGULATOR
AAT1117 1 Amp Linear Regulator
AAT1150 1MHz 1A Step-Down DC/DC Converter
AAT1152 850kHz 1A Synchronous Buck DC/DC Converter
AAT1153 2A Step-Down Converter
AAT1154 1MHz 3A Buck DC/DC Converter

AAT1145 Distributor