--- title: 升降压 updated: 2022-01-12 09:03:31Z created: 2022-01-08 13:18:04Z tags: - dcdc - 国产化 - 电源 --- #国产化 #电源 #dcdc # SC8721 国产 - Integrated Switches, 10 m for Q1/4, 20 m for Q2/3 - Wide VIN Range: 2.7 V to 22 V, 25V sustainable - Wide VOUT Range: 2.7 V to 22 V, 25V sustainable - 输出电压可调(电阻调、IIC调),电流可达10A - 可模块化,输入,输出,使能,Trim,SCL,SDA,CSO ## **电阻调**: VOUT = VFB_REF x (1+ RUP/RDOWN ),VFB_REF is the internal reference voltage 1V,分辨率1mV ## **IIC调**: VOUT_SET =5±(VOUT_SET_MSB x4+VOUT_SET_LSB) x 20mV,分辨率20mV ## **IIC限流**: IOUT_ILIM = (CSO_SET+1)*4mV*2kR/(Rs*RCSO),Rs=5mR,RCSO=32kR时分辨率50mA ## 2021.06 6块/片,可做数控电源 实测效率很高,单电(3-4.2V)输入,输出3.3V时效率不低于95% ~~SC8815/SC8802~~ # TPS63070 ![8d90024233f8aa7ee82b33dfda378a87.png](../../../_resources/8d90024233f8aa7ee82b33dfda378a87.png)