AAT2514中文资料Dual Channel 600mA Step-Down Converter数据手册Skyworks规格书

描述 Description

The AAT2514 SwitchReg™ is a dual channel current mode PWM DC-DC step-down converter operating at 1.5MHz constant frequency. The device is ideal for portable equipment requiring two separate power supplies that need high current up to 600mA. The device operates from single-cell Lithium-ion batteries while still achieving over 96% efficiency. The AAT2514 also can run at 100% duty cycle for low dropout operation, extending battery life in portable systems while light load operation provides very low output ripple for noise sensitive applications.
The device has a unique adaptive slope compensation scheme that makes it possible to operate with a lower range of inductor values to optimize size and provide efficient operation. The 1.5MHz switching frequency minimizes the size of external components while keeping switching losses low. The AAT2514 can operate from a 2.5V to 5.5V input voltage and can supply up to 600mA output current for each channel.
The AAT2514 is available in a Pb-free 3 x 3mm 10-lead TDFN package and operates over the -40°C to +85°C temperature range.

特性 Features

·VIN Range:2.5V to 5.5V
·Up to 600mA Output Current
·High Efficiency: Up to 96%
·1.5MHz Constant Frequency Operation
·100% Duty Cycle Dropout Operation
·Low RDS(ON) Internal Switches: 0.35Ω
·Current Mode Operation for Excellent Line and Load Transient Response
·Adaptive Slope Compensation
·Soft Start
·Short-Circuit and Thermal Fault Protection
·<1µA Shutdown Current
·Power-On Reset Output
·Small, Thermally Enhanced TDFN33 -10 Package
·-40°C to +85°C Temperature Range