XC9128/XC9129系列是能使用陶瓷电容,PWM控制, 可由外部控制转换的PWM/PFM控制可替代MAX1947产品。
XC9128/XC9129系列产品特点：
输出电流 150mA@VOUT=3.3V VIN=0.9V/500mA@VOUT=3.3V VIN=1.8V
输入电压范围 0.8V～6.0V
输出电压设定范围 参考电压源0.45V&plu***n;0.010V把输出电压控制在1.8V到5.3V范围内由外置电阻可进行任意调整
振荡频率 1.2MHz(固定频率精度为&plu***n;15%)
输入电流 1.0A
***大电流范围 1.2A (MIN.) 2.0A (MAX.)
保护电路 过热时停机, 积分锁定方式(过电流限制)
软启动 内部固定5ms (TYP.)
与陶瓷电容对应
带有效适配功能 (XC9128)
Error 输出功能 N-沟道开漏输出
封装 USP-10B, MSOP-10
XC9128/XC9129系列是能使用陶瓷电容, 0.2Ω内置N-沟道驱动器三极管及0.2ΩP-沟道同步整流开关三极管的升压同步整流DC/DC转换器。通过降低内置三极管的低通态开路电阻使输入电流能达到1.0A。实现了***率, 安定地驱动电流。
当负载为1kΩ时,输入电压从0.8V开始工作,当负载为33Ω时,输入电压从0.9V(设定为VOUT=3.3V时)开始工作,因此只需使用1组碱性电池即可工作。
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