IA3432

1MHz, 30V, 2.0A High Efficiency Synchronous Step-Down Converter for Dimmable LED Driver

• Wide Input Range: 4V to 30V

• 130mΩ/70mΩ Low RDS(ON) Internal FETs

• Up to 2.0A Output Current Capability

• Fixed 1MHz Switching Frequency

• Maximum Duty Cycle Up to 99%

• Down to 0.5% LED Rated Current

• Ultra-low and Accurate FB Voltage: 100±3mV

• Peak Current Mode with Internal Compensation

• Over Current Protection with Hiccup Mode

• LED Fault Protection Features：

-LED open load protection

-LED+ short to GND protection

-LED+ and LED- short circuitry protection

-Sense resistor open load protection

-Sense resistor short to GND protection

• Thermal Shutdown

• Stable with Low ESR Ceramic Output Capacitors

• Available in SOT23-6 Package