SLUS652E March 2005 – April 2020 UCD8220
PRODUCTION DATA.
请参考 PDF 数据表获取器件具体的封装图。
When the ISET resistor is configured as shown in Figure 33 with the ISET resistor connected between the ISET pin and the input voltage, VIN, the device is configured for voltage mode control with voltage feed forward. For the purposes of voltage loop compensation, the voltage ramp is 1.4 V × VIN / VIN_max from the valley to the peak. Use Equation 6 to calculate the proper resistance for a desired clock frequency and input voltage range.
where
For a general discussion of the benefits of voltage mode control with voltage feed forward, see (5) in the Related Documentation section.