General Description
The AAT1162 is an 800kHz high efficiency stepdown DC/DC converter. With a wide input voltage range of 4.0V to 13.2V, the AAT1162 is an ideal choice for dual-cell Lithium-ion battery-powered devices and mid-power-range regulated 12V-powered industrial applications. The internal power switches are capable of delivering up to 1.5A to the load.
The AAT1162 is a highly integrated device, simplifying system-level design. Minimum external components are required for the converter.
The AAT1162 optimizes efficiency throughout the entire load range. It operates in a combination
PWM/Light Load mode for improved light-load efficiency.
The high switching frequency allows the use of small external components. The low current shutdown feature disconnects the load from VIN and drops shutdown current to less than 1μA.
The AAT1162 is available in a Pb-free, space-saving, thermally-enhanced 16-pin TDFN34 packageand is rated over an operating temperature range of -40°C to +85°C.

• Input Voltage Range: 4.0V to 13.2V
• Up to 1.5A Load Current
• Fixed or Adjustable Output:
 -Output Voltage: 0.6V to VIN
• Low 115μA No-Load Operating Current
• Less than 1μA Shutdown Current
• Up to 96% Efficiency
• Integrated Power Switches
• 800kHz Switching Frequency
• Soft Start Function
• Short-Circuit and Over-Temperature Protection
• Minimum External Components
• TDFN34-16 Package
• Temperature Range: -40°C to +85°C

• Distributed Power Systems
• Industrial Applications
• Laptop Computers
• Portable DVD Players
• Portable Media Players
• Set-Top Boxes
• TFT LCD Monitors and HDTVs


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