| FP7101A 2A Constant Current Buck Converter for Powering LEDs |
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General Description |
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The FP7101A is a current-mode buck regulator with a built in internal 2A power MOSFET. It provides a simple, high efficiency solution for driving high power LEDs. With a 0.2V reference voltage feedback control to minimize power dissipation, an external resistor sets the current as needed for driving various types of LEDs. Current mode operation provides fast transient response and eases loop stabilization. The FP7101A requires a minimum number of readily available external components to complete a 2A buck regulator design. The device also includes cycle-by-cycle current limiting and thermal shutdown protection. Additional features include user accessible EN/DIM pin for enabling and PWM dimming of LEDs.
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Features |
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˙Wide 4.75 to 23V Operating Input Range
˙Output Adjustable From 0.2 to 16V
˙2A Output Current
˙0.22Ω Internal Power MOSFET Switch
˙Fixed 380KHz Frequency
˙Up to 90% Efficiency
˙25μA Shutdown Mode Current
˙Stable with Low ESR Output Ceramic Capacitors
˙Cycle-by-Cycle Over Current Protection
˙Under Voltage Lockout
˙Thermal Shutdown
˙Available SOP-8L & SOP-8L (EP) Package
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Typical Application Circuits
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