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联系： / 83018377 公司网站：www.gofotech.com

        The ME2139 series is a CMOS step-up switching regulator which mainly consists of a reference voltage source, an oscillation circuit, an error amplifier, a phase compensation circuit, a PWM/PFM switching control circuit. With an external low-ON-resistance Nch Power MOS, this  product  is applicable to applications requiring high efficiency and high output current. The ME2139 series switches its operation to the PFM control circuit whose duty ratio is 15 % with to the PWM/PFM switching control circuit under a light load and to prevent decline in the efficiency by IC operation current.

特点：
•  Low voltage  operation:  Start-up is guaranteed from 0.9 V(IOUT=1 mA )
•  Duty ratio:  Built-in PWM/PFM switching control circuit 15 to 78 % .
•  oscillator frequency：1.0MHz
•  External parts:  coil, diode, capacitor, and transistor
•  Output voltage range: 1.5V ~6.5 V
•  Output voltage accuracy：&plu*n;2%
•  Soft start function: 2 mS.
•  PACKAGE：SOT23-5

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典型电路应用：

企业名：深圳市四海恒通科技有限公司

类型：经销商

电话： 755-83983377

联系人：王德源

地址：广东深圳福虹路鼎盛时代A座9楼9B