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The RT8463 is a current mode PWM regulator for LED driving applications. With a 2A power switch, wide input voltage (4.5V to 50V) and output voltage (up to 50V) ranges, the RT8463 can operate in any of the three common topologies : Buck, Boost or Buck-Boost. With 470kHz operating frequency, the size of the external PWM inductor and input/output capacitors can be minimized. High efficiency is achieved by a 100mV current sensing control. Brightness dimming can be controlled from either analog or PWM signal. A unique built-in clamping comparator and filtering resistor allow easy low noise analog dimming conversion from PWM signal with only one external capacitor. The RT8463 is available in the TSSOP-14 (Exposed pad) and WDFN-12L 3x3 packages.
High Voltage : VIN Up to 50V, VOUT Up to 50V
Buck, Boost or Buck-Boost Operation
Built-In 2A Power Switch
Current Mode PWM Control
470kHz Fixed Switching Frequency
Easy Dimming : Analog, PWM Digital or PWM Converting to Analog with One External Capacitor
Adjustable Soft-Start to Avoid Inrush Current
Adjustable Over Voltage Protection to Limit Output Voltage
Thermal Shutdown
Under Voltage Lockout
RoHS Compliant and Halogen Free
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