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求推荐大功率输出的恒流芯片

Other Parts Discussed in Thread: OPA541, OPA549

恒压恒流源:要求DC 输入6~8.4V,最大放电电流不低于30A,输出电压5V,电流20A-25A,负载LED列阵,工作时间0.1-0.3S,周期为1S,闪烁,输出恒流25A.

求推荐个芯片和应用电路图  谢谢