AAT AAT1156
The AAT1156 SwitchReg™ is a member of AnalogicTech™'s Total Power Management IC™ (TPMIC™) product family. The step-down switching converter is ideal for applications where high efficiency is required over the full range of load conditions. The 2.7V to 5.5V input voltage range makes the AAT1156 ideal for single-cell lithium-ion/polymer battery applications.GENERAL DESCRIPTION
Capable of more than 700mA with internal MOSFETs, the current-mode controlled IC provides high efficiency over a wide operating range. Fully integrated compensation simplifies system design and lowers external parts count. The AAT1156 is available in the 16-pin 3x3mm QFN package and is rated over the -40°C to +85°C temperature range.FEATURES
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● SwitchReg™ VIN Range: 2.7 to 5.5 Volts Up to 95% Efficiency 110mΩ RDS(ON) Internal Switches <1µA Shutdown Current 1MHz Step-Down Switching Frequency Fixed or Adjustable VOUT ≥ 0.8V Integrated Power Switches Current Mode Operation Internal Compensation Stable with Ceramic Capacitors Internal Soft Start Over-Temperature Protection Current Limit Protection 16-Pin QFN 3x3mm Package -40°C to +85°C Temperature Range
APPLICATIONS
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● Cellular Phones Digital Cameras MP3 Players Notebook Computers PDAs Wireless Notebook Adapters Typical Application U1 AAT1156 12 R1 100 C1 10µF 11 10 7 9 6 C2 0.1 µF...