AP8235 升压芯片 DC-DC 开关型转换器

详情描述：

The AP 8235 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  internal low-ON-resistance Nch Power MOS, this  product is applicable to applications requiring  high efficiency and high output current. The  AP8235 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


Feature ? 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 ? Output voltage range: 1.5V ~6.5 V ? Output voltage accuracy：?2% ? Soft start function: 2 mS. ? PACKAGE：SOT23-5,SOT89-5,SOP8