AAT3183

Specifications

• V_IN Range: 2.7V to 5.5V
• V_OUT: 1.5V and 1.34V
• 300mA Maximum Output Current
• Ultra-Small Solution for Portable Applications
  • Small Footprint
  • Only Three External Ceramic Capacitors Required
  • No Inductor
• High Efficiency over the Output Current Range
• Excellent Transient Performance
• 35µA Typical Quiescent Current
• <1.0µA Shutdown Current
• Up to 2MHz Switching Frequency
• Integrated Soft-Start
• Short-Circuit and Thermal Protection
• 2.0x2.1mm SC70JW-8 Package
• -40ºC to 85ºC Temperature Range

Description

span id="lblDescription">The AAT3183 is a high efficiency step-down charge pump converter providing up to 300mA of output current. The 1/2x (gain) charge pump converter opology provides enhanced efficiency over conventional LDO regulators and requires only three low cost ceramic capacitors. No inductor is required; saving space and cost when compared to inductive switching regulators.

The AAT3183 typically consumes 35µA of no load (zero output current) quiescent current, making it ideal for portable battery powered systems. Shutdown current is less than 1µA when the device is disabled.

The AAT3183 soft-start prevents excessive inrush current while providing monotonic turn-On characteristics. The device includes integrated short-circuit and over-temperature (thermal) protection to safeguard system components.

The AAT3183 is available in a Pb-free 2.0x2.1mm SC70JW-8 package. Operating temperature range is -40ºC to +85ºC.