AAT1130数据手册Skyworks中文资料规格书

描述 Description

The AAT1130 SwitchReg™ is a member of AnalogicTech’s Total Power Management IC™ product family. The converter uses a predictive on-time, current-mode step-down control scheme that provides a fixed 2.5MHz switching frequency (under steady state conditions). It allows the control circuit to react nearly instantly in order to improve transient response and to enhance stability with the LC components as small as 1.0μH. The unique architecture improves transient response while allowing tiny passive LC filter components. The high switching frequency (up to 2.5MHz) keeps output voltage ripple low.The AAT1130 delivers up to 400mA of output current, while consuming only 60μA of quiescent current. The AAT1130 regulates an output voltage between 0.6V and 1.8V from an input voltage of 2.7V to 5.5V. The AAT1130's output voltage is set by an external resistive voltage divider circuit. Internal MOSFET switches reduce the overall solution size while maintaining high efficiency over a wide load current range.The AAT1130 is available in a space-saving 2.0x2.2mm SC70JW-10 package and is rated over the -40°C to 85°C temperature range.

特性 Features

·2.5MHz Switching Frequency
·Fast Transient Response with Small LC Output Filter Components
·Input Voltage Range: 2.7V to 5.5V
·Output Voltage Range: 0.6V to 1.8V
·High 92% Peak Efficiency (VIN = 3.6V, VOUT = 1.8V)
·Low 60μA Quiescent Current
·400mA Maximum Continuous Output Current
·Internal 150μs Soft-Start Feedback Ramp
·Over-Temperature Protection
·Anti-Ringing Switch to Reduce EMI During
·Discontinuous Conduction Mode Operation
·Valley Current Limit Protection
·SC70JW-10 Package
·-40°C to 85°C Temperature Range