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AAT1106

Advanced Analogic Technologies
Part Number AAT1106
Manufacturer Advanced Analogic Technologies
Description 600mA Step-Down Converter
Published Aug 28, 2008
Detailed Description 600mA Step-Down Converter General Description Features AAT1106 SwitchReg™ The AAT1106 SwitchReg™ is a 1.5MHz constant...
Datasheet PDF File AAT1106 PDF File

AAT1106
AAT1106

Overview
600mA Step-Down Converter General Description Features AAT1106 SwitchReg™ The AAT1106 SwitchReg™ is a 1.
5MHz constant frequency current mode PWM step-down converter with a unique adaptive slope compensation scheme allowing the device to operate with a lower range of inductor values to optimize size and provide efficient operation.
It is ideal for portable equipment powered by single-cell Lithium-ion batteries and is optimized for high efficiency, achievwww.
DataSheet4U.
com ing levels up to 96%.
The AAT1106 can supply up to 600mA load current from a 2.
5V to 5.
5V input voltage and the output voltage can be regulated as low as 0.
6V.
The device also can run at 100% duty cycle for low dropout operation, extending battery life in portable systems.
In addition, light load operation provides very low output ripple for noise sensitive applications and the 1.
5MHz switching frequency minimizes the size of external components while keeping switching losses low.
The AAT1106 is available in adjustable and fixed (1.
5V, 1.
8V) output voltage versions, comes in a Pb-free, low-profile 5-pin TSOT23 package, and is rated over the -40°C to +85°C temperature range.
• • • • • • • • • • • VIN Range: 2.
5V to 5.
5V VOUT: Adjustable 0.
6V to VIN Up to 600mA Output Current Up to 96% Efficiency 1.
5MHz Switching Frequency 100% Duty Cycle Dropout Operation Adaptive Slope Compensated Current Mode Control for Excellent Line and Load Transient Response <1µA Shutdown Current Short-Circuit and Thermal Fault Protection TSOT23-5 Package -40°C to +85°C Temperature Range Applications • • • • • • • Cellular Phones, Smartphones Digital Still Cameras Digital Video Cameras Microprocessor and DSP Core Supplies MP3 and Portable Media Players PDAs Wireless and DSL Modems Typical Application VIN 2.
5V to 5.
5V L1 2.
2µH VOUT 1.
8V IN C1 4.
7µF AAT1106-1.
8 GND LX EN OUT C3 10µF 1106.
2007.
07.
1.
0 1 600mA Step-Down Converter Pin Descriptions Pin # 1 2 3 www.
DataSheet4U.
com 5 AAT1106 Symbol EN GND LX IN FB...


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