型号：MP2488DQ-LF-Z/MP2488DN-LF-Z
厂家：MPS(美国芯源）
封装：QFN-10 SOP-8
批号：11+
应用：LED灯、射灯
MP2488是一个2MHz, 55V Input, 2A电流的LED恒流驱动。其采用QFN-10和SOP-8的引脚封装。
其具体规格如下：
Description:
The MP2488 is a fixed frequency step-down switching regulator to deliver a constant current of up to 2A to high power LEDs. It integrates a high-side, high voltage power MOSFET with a current limit of 3.2A. The wide 4.5V to 55V input range accommodates a variety of step-down applications, making it ideal for automotive, industry and general lighting applications. Peak current mode control and 200mV reference are applied for fast loop response, easy compensation and accurate LED current regulation. The switching frequency is programmable with an external resistor up to 200kHz, which can prevent EMI (Electromagnetic Interference) noise problems. The thermal shut down provides reliable, fault tolerant operations. A 12μA quiescent current in shutdown mode allows its use in battery-powered applications.
The MP2488 is available in small 3x3mm 10-pin QFN and SOIC8 with exposed pad packages.
Features:
• Wide 4.5V to 55V Operating Input Range
• 220m? Internal Power MOSFET
• Up to 200kHz Programmable Switching Frequency
• 130μA Quiescent Current
• Ceramic Capacitor Stable
• Internal Soft-Start
• Up to 97.5% Efficiency
• 200mV reference voltage for high efficiency
• Available in 3x3mm 10-Pin QFN and SOIC8 with Exposed Pad Packages
APPLICATIONS
• High Power LED Driver
• Automotive, Industry and General Lighting
• Constant Current Source
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