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AAT1145 - 1.2A Step-Down Converter

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.

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.

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Datasheet Details

Part number AAT1145
Manufacturer Advanced Analogic Technologies
File Size 347.63 KB
Description 1.2A Step-Down Converter
Datasheet download datasheet AAT1145 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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PRODUCT DATASHEET AAT1145 SwitchRegTM 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. www.DataSheet4U.com The AAT1145 can supply up to 1.2A output load current from a 2.5V to 5.5V input voltage and the output voltage can be regulated as low as 0.6V.
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