各位大蝦你們好，有沒有用過DC/DC5V4A的方案？
要求
1.DC入力10V-30VDC
2.輸出DC5.0V/4A, 如有此方案的
請加QQ737803192
求5V4AIC方案
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AX3304+AM9569D(MOS) 
AX3304-V1.3 AM9569D-V1.1
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IC （SMD736）+ MOS （30L15H）
Wide input voltage range, up to 40V
Guaranteed 3A output current
Wide adjustable version output current
range, from 0A to 3A max over line and loa
conditions
150 kHz fixed frequency internal oscillator
Dimming control by PWM or Voltage
Adjustment
Requires only 6 external components
Thermal shut down and current limit
protection
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