FP7101B中文资料2A Constant Current Buck Converter for Powering LEDs数据手册Feeling规格书

描述 Description

The FP7101B is a current-mode buck regulator with a built in internal 2A power MOSFET. lt 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 FP7101B requires a minimum number of readily available external components to complete a 2A buck regulator solution. The device 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.

特性 Features

• 2A Output Current
• 0.22Ω lnternal Power MOSFET Switch
• Stable with Low ESR Output Ceramic Capacitors
• Up to 90% Efficiency
• 25μA Shutdown Mode Current
• Fixed 1MHz frequency
• Thermal Shutdown
• Cycle-by-Cycle Over Current Protection
• Wide 4.75 to 23V operating lnput Range
• Output Adjustable From 0.2 to 16V
• Available SOP8 Exposed PAD
• Under Voltage Lockout