High Power DC/DC Boost Converter with Optional Dynamic Voltage Scaling

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Manufacturer Skyworks


Description :

The AAT1210 is a general purpose high power DC/DC boost (step-up) converter with an input voltage range from 2.7 to 5.5V. The output voltage can be set from VIN +0.5V to 18V. The ultra-small solution size and high operating efficiency makes the AAT1210 the ideal solution for battery powered and consumer applications. The step-up converter operates at frequencies up to 2MHz, enabling ultra-small external filtering components. Hysteretic current mode control provides excellent transient response with no external compensation, achieving stability across a wide operating range with minimal design effort. The AAT1210 true load disconnect feature extends battery life by isolating the load from the power source when the EN/SET pin is pulled low ensuring zero volts output during the disable state. This feature eliminates the external boost converter leakage path; standby quiescent current <1µA is achieved without an external switching device. A fixed output voltage is set using two external resistors. Alternatively, the output may be adjusted dynamically across a 2.0x range. The output can toggle between two preset voltages using the SEL logic pin or across any of 16 programmed levels using AnalogicTech's Simple Serial Control™ (S²Cwire™) interface. The AAT1210 is available in a Pb-free, thermally enhanced 16-pin 3x4mm TDFN low-profile package.

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    • VIN Range: 2.7V to 5.5V
    • Maximum Continuous Output
    • 900mA at 5V
    • 300mA at 12V
    • 150mA at 18V
    • Up to 2MHz Switching Frequency
    • Ultra-Small Inductor and Capacitors
    • 1mm Height Inductor
    • Small Ceramic Capacitors
    • Hysteretic Current Mode Control
    • No External Compensation
    • Excellent Transient Response
    • High Efficiency at Light Load
    • Up to 90% Efficiency
    • Integrated Low RDS(ON) MOSFET Switches
    • Low Inrush with Integrated Soft Start
    • Cycle-by-Cycle Current Limit
    • Short-Circuit and Over-Temperature Protection
    • True Load Disconnect
    • Optional Dynamic Voltage Programming
    • TDFN34-16 Package
    • -40°C to +85°C Temperature Range

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Control scheme Hysteretic current mode control  

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Switching frequency (kHz) 2000  
Max Input Voltage (V) 2.7 to 5.5  
Output Voltage (V) 3.2 to 18  
Typ. Active Current (µA) 40  
Output Capacitor Type 4.7 to 10 μF, Ceramic Capacitors  
Output Current (mA) 150  
Operating Temperature (°C) -40 to +85  
Package TDFN34-16