24V 100mA Step-Up DC/DC Converter

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Manufacturer Skyworks


Description :

The AAT1232 is a high frequency, high efficiency boost converter capable of 24V maximum output voltage. The internal power switch can deliver 100mA load current. It is the ideal power solution to power OLED, LCD, and CCD applications operating from a single-cell lithium-ion battery. The high switching frequency (up to 2MHz) provides fast response to load transients with small external components. The fully integrated control IC simplifies the design while reducing the total PCB footprint. The AAT1232 offers a true load disconnect feature which isolates the load from the power source when EN/SET is pulled low. This eliminates leakage current and maintains zero voltage at the output while disabled. The output voltage can be dynamically set by activating one of two reference levels (FB1 or FB2) through the SEL logic pin. Optionally, AnalogicTech's patented Simple Serial Control™ (S²Cwire™) single-wire interface provides dynamic programmability across a wide output voltage range through the EN/SET pin. The AAT1232 is available in a Pb-free, thermally-enhanced 16-pin 3x4mm TDFN low-profile package or a Pb-free 12-pin TSOPJW package.

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    • VIN Range: 2.7V to 5.5V
    • Maximum Output: 24V @ 100mA
    • True Load Disconnect
    • Dynamic Voltage Control Options
    • Hysteretic Control
    • No External Compensation Components
    • Excellent Load Transient Response
    • High Efficiency at Light Load
    • Up to 2MHz Switching Frequency
    • Ultra-Small Inductor and Capacitors
    • Integrated Low RDS(ON) MOSFET Switches
    • Up to 85% Efficiency
    • <1μA Shutdown Current
    • Integrated Soft Start
    • Cycle-by-Cycle Current Limit
    • Short-Circuit, Over-Temperature Protection
    • Available in TSOPJW-12 or TDFN34-16 Package
    • -40°C to +85°C Temperature Range

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Control scheme Current Mode Control  

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Switching frequency (kHz) 2000  
Max Input Voltage (V) 2.7 to 5.5  
Output Voltage (V) 24  
Typ. Active Current (µA) 40  
Output Capacitor Type 2.2 to 4.7 μF, Ceramic Capacitors  
Output Current (mA) 100  
Operating Temperature (°C) -40 to +85  
Package TSOPJW-12